{"id":27036,"date":"2026-08-21T22:42:12","date_gmt":"2026-08-21T17:12:12","guid":{"rendered":"https:\/\/qsh.in\/boards\/wbbse\/?p=27036"},"modified":"2026-08-21T22:51:05","modified_gmt":"2026-08-21T17:21:05","slug":"one-digit-addition","status":"publish","type":"post","link":"https:\/\/qsh.in\/boards\/wbbse\/mental-math\/one-digit-addition\/","title":{"rendered":"\u09e7-\u0985\u0999\u09cd\u0995\u09c7\u09b0 \u09af\u09cb\u0997\u09ab\u09b2 \u09ae\u09cd\u09af\u09be\u099c\u09bf\u0995\u09c7\u09b0 \u09ae\u09a4\u09cb \u09ac\u09c7\u09b0 \u0995\u09b0\u09cb: Play Mental Math Racing Game!"},"content":{"rendered":"<p>\u09a4\u09cb\u09ae\u09b0\u09be \u09af\u09be\u09b0\u09be \u0996\u09be\u09a4\u09be-\u0995\u09b2\u09ae \u09ac\u09be \u0995\u09cd\u09af\u09be\u09b2\u0995\u09c1\u09b2\u09c7\u099f\u09b0 \u099b\u09be\u09dc\u09be \u09a6\u09cd\u09b0\u09c1\u09a4 \u0985\u0999\u09cd\u0995 \u0995\u09b0\u09a4\u09c7 \u099a\u09be\u0993, \u09a4\u09be\u09a6\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u0986\u099c \u0986\u09ae\u09bf \u09ae\u09c7\u09a8\u09cd\u099f\u09be\u09b2 \u09ae\u09cd\u09af\u09be\u09a5\u09c7\u09b0 (Mental Math) \u09aa\u09cd\u09b0\u09a5\u09ae \u0995\u09cd\u09b2\u09be\u09b8 \u09a8\u09bf\u09df\u09c7 \u098f\u09b8\u09c7\u099b\u09bf\u0964 \u0986\u099c\u0995\u09c7\u09b0 \u09ac\u09bf\u09b7\u09df \u09b9\u09b2\u09cb \u09e7-\u0985\u0999\u09cd\u0995 \u09ac\u09be \u09b8\u09bf\u0999\u09cd\u0997\u09b2 \u09a1\u09bf\u099c\u09bf\u099f\u09c7\u09b0 \u09af\u09cb\u0997\u0964 \u0985\u09a8\u09c7\u0995 \u09ac\u09be\u099a\u09cd\u099a\u09be\u0987 \u099b\u09cb\u099f\u09ac\u09c7\u09b2\u09be\u09df \u0986\u0999\u09c1\u09b2 \u0997\u09c1\u09a8\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09a4\u09c7 \u09b6\u09c7\u0996\u09c7, \u09af\u09be \u09b8\u09ae\u09df\u09b8\u09be\u09aa\u09c7\u0995\u09cd\u09b7\u0964 \u0995\u09bf\u09a8\u09cd\u09a4\u09c1 \u0986\u09ae\u09b0\u09be \u0986\u099c \u098f\u09ae\u09a8 \u0995\u09bf\u099b\u09c1 \u0995\u09cc\u09b6\u09b2 \u09b6\u09bf\u0996\u09ac, \u09af\u09be\u09a4\u09c7 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8 \u09a6\u09c7\u0996\u09be\u09b0 \u09b8\u09be\u09a5\u09c7 \u09b8\u09be\u09a5\u09c7\u0987 \u09ae\u09be\u09a5\u09be\u09b0 \u09ad\u09c7\u09a4\u09b0 \u0989\u09a4\u09cd\u09a4\u09b0 \u09a4\u09c8\u09b0\u09bf \u09b9\u09df\u09c7 \u09af\u09be\u09df\u0964<\/p>\n<h2>\u09a6\u09cd\u09b0\u09c1\u09a4 \u09af\u09cb\u0997 \u0995\u09b0\u09be\u09b0 \u09e9\u099f\u09bf \u09ae\u09cd\u09af\u09be\u099c\u09bf\u0995 \u099f\u09cd\u09b0\u09bf\u0995\u09b8<\/h2>\n<p>\u0986\u09ae\u09bf \u0986\u09ae\u09be\u09b0 \u0995\u09cd\u09b2\u09be\u09b8\u09c7 \u09b8\u09ac\u09b8\u09ae\u09df \u09ac\u09b2\u09bf, \u0985\u0999\u09cd\u0995 \u09ae\u09c1\u0996\u09b8\u09cd\u09a5 \u0995\u09b0\u09be\u09b0 \u099c\u09bf\u09a8\u09bf\u09b8 \u09a8\u09df, \u098f\u099f\u09bf \u099f\u09c7\u0995\u09a8\u09bf\u0995\u09c7\u09b0 \u0996\u09c7\u09b2\u09be\u0964 \u09a8\u09bf\u099a\u09c7 \u09a6\u09c7\u0993\u09df\u09be \u09a4\u09bf\u09a8\u099f\u09bf \u099f\u09c7\u0995\u09a8\u09bf\u0995 \u09ad\u09be\u09b2\u09cb\u09ad\u09be\u09ac\u09c7 \u0986\u09df\u09a4\u09cd\u09a4 \u0995\u09b0\u09b2\u09c7 \u09a4\u09cb\u09ae\u09be\u09a6\u09c7\u09b0 \u0986\u09b0 \u0995\u0996\u09a8\u09cb \u0986\u0999\u09c1\u09b2 \u0997\u09c1\u09a8\u09a4\u09c7 \u09b9\u09ac\u09c7 \u09a8\u09be\u0964<\/p>\n<h3>\u09e7. \u09ac\u09dc \u09b8\u0982\u0996\u09cd\u09af\u09be\u099f\u09bf \u09ae\u09be\u09a5\u09be\u09df \u09b0\u09be\u0996\u09cb (Count-On Method)<\/h3>\n<p>\u09a7\u09b0\u09cb \u09a4\u09cb\u09ae\u09be\u0995\u09c7 \u09ac\u09b2\u09be \u09b9\u09b2\u09cb \u09e8 \u098f\u09ac\u0982 \u09ed \u09af\u09cb\u0997 \u0995\u09b0\u09a4\u09c7 (\u09e8 + \u09ed = ?)\u0964 \u09b8\u09be\u09a7\u09be\u09b0\u09a3\u09a4 \u0985\u09a8\u09c7\u0995\u09c7\u0987 \u09e8 \u09a5\u09c7\u0995\u09c7 \u09b6\u09c1\u09b0\u09c1 \u0995\u09b0\u09c7 \u09ed \u0998\u09b0 \u09aa\u09b0\u09cd\u09af\u09a8\u09cd\u09a4 \u0986\u0999\u09c1\u09b2 \u0997\u09cb\u09a8\u09c7\u0964 \u0995\u09bf\u09a8\u09cd\u09a4\u09c1 \u098f\u09b0 \u098f\u0995\u099f\u09be \u09b8\u09b9\u099c \u09b6\u09b0\u09cd\u099f\u0995\u09be\u099f \u0986\u099b\u09c7\u0964 \u09b8\u09ac\u09b8\u09ae\u09df \u09ac\u09dc \u09b8\u0982\u0996\u09cd\u09af\u09be\u099f\u09be\u0995\u09c7 \u0986\u0997\u09c7 \u09ad\u09c7\u09ac\u09c7 \u09a8\u09be\u0993\u0964 \u098f\u0996\u09be\u09a8\u09c7 \u09ac\u09dc \u09b8\u0982\u0996\u09cd\u09af\u09be \u09b9\u09b2\u09cb \u09ed\u0964 \u098f\u09ac\u09be\u09b0 \u09ed-\u098f\u09b0 \u09aa\u09b0 \u09a5\u09c7\u0995\u09c7 \u09ae\u09be\u09a4\u09cd\u09b0 \u09e8 \u0998\u09b0 \u098f\u0997\u09cb\u0993 (\u09ee, \u09ef)\u0964 \u09a6\u09c7\u0996\u09cb, \u0995\u09a4 \u09b8\u09b9\u099c\u09c7 \u0989\u09a4\u09cd\u09a4\u09b0 \u09ac\u09c7\u09b0\u09bf\u09df\u09c7 \u098f\u09b2\u09cb \u09ef! \u098f\u09a4\u09c7 \u09b8\u09ae\u09df \u0985\u09a8\u09c7\u0995 \u09ac\u09be\u0981\u099a\u09c7\u0964<\/p>\n<h3>\u09e8. \u09e7\u09e6-\u098f\u09b0 \u09ac\u09a8\u09cd\u09a7\u09c1 \u09b8\u0982\u0996\u09cd\u09af\u09be (Friends of 10)<\/h3>\n<p>\u09ae\u09be\u09a8\u09b8\u09bf\u0995 \u0997\u09a3\u09bf\u09a4\u09c7 \u09b8\u09cd\u09aa\u09bf\u09a1 \u0986\u09a8\u09be\u09b0 \u099c\u09a8\u09cd\u09af \u0995\u09cb\u09a8 \u09a6\u09c1\u099f\u09bf \u09b8\u0982\u0996\u09cd\u09af\u09be \u09ae\u09bf\u09b2\u09c7 \u09e7\u09e6 \u09b9\u09df, \u09b8\u09c7\u099f\u09be \u09a4\u09cb\u09ae\u09be\u09a6\u09c7\u09b0 \u09a0\u09cb\u0981\u099f\u09b8\u09cd\u09a5 \u09a5\u09be\u0995\u09a4\u09c7 \u09b9\u09ac\u09c7\u0964 \u0986\u09ae\u09bf \u098f\u0995\u09c7 \u09ac\u09b2\u09bf \u2018\u09e7\u09e6-\u098f\u09b0 \u09ac\u09a8\u09cd\u09a7\u09c1\u2019\u0964<\/p>\n<ul>\n<li>\u09e7 + \u09ef = \u09e7\u09e6<\/li>\n<li>\u09e8 + \u09ee = \u09e7\u09e6<\/li>\n<li>\u09e9 + \u09ed = \u09e7\u09e6<\/li>\n<li>\u09ea + \u09ec = \u09e7\u09e6<\/li>\n<li>\u09eb + \u09eb = \u09e7\u09e6<\/li>\n<\/ul>\n<p>\u098f\u0987 \u099c\u09cb\u09dc\u09be\u0997\u09c1\u09b2\u09cb \u09ac\u09cd\u09b0\u09c7\u09a8\u09c7 \u09b8\u09c7\u099f \u0995\u09b0\u09c7 \u09a8\u09bf\u09b2\u09c7 \u09aa\u09b0\u09ac\u09b0\u09cd\u09a4\u09c0 \u09a7\u09be\u09aa\u09c7\u09b0 \u09ac\u09dc \u09ac\u09dc \u09b9\u09bf\u09b8\u09c7\u09ac \u0995\u09b0\u09be \u0996\u09c1\u09ac \u09b8\u09cb\u099c\u09be \u09b9\u09df\u09c7 \u09af\u09be\u09df\u0964<\/p>\n<h3>\u09e9. \u09a1\u09be\u09ac\u09b2\u09b8 \u099f\u09cd\u09b0\u09bf\u0995 (Doubles and Doubles + 1)<\/h3>\n<p>\u098f\u0995\u0987 \u09b8\u0982\u0996\u09cd\u09af\u09be\u09b0 \u09af\u09cb\u0997\u09ab\u09b2 \u0986\u09ae\u09be\u09a6\u09c7\u09b0 \u0996\u09c1\u09ac \u09b8\u09b9\u099c\u09c7 \u09ae\u09a8\u09c7 \u09a5\u09be\u0995\u09c7\u0964 \u09af\u09c7\u09ae\u09a8 \u09e8+\u09e8=\u09ea, \u09ea+\u09ea=\u09ee, \u09eb+\u09eb=\u09e7\u09e6\u0964 \u098f\u0987 \u09a1\u09be\u09ac\u09b2\u09b8\u0997\u09c1\u09b2\u09cb\u0995\u09c7 \u0995\u09be\u099c\u09c7 \u09b2\u09be\u0997\u09bf\u09df\u09c7 \u0986\u09ae\u09b0\u09be \u0995\u09be\u099b\u09be\u0995\u09be\u099b\u09bf \u09a5\u09be\u0995\u09be \u0985\u09a8\u09cd\u09af\u09be\u09a8\u09cd\u09af \u09af\u09cb\u0997 \u09a6\u09cd\u09b0\u09c1\u09a4 \u0995\u09b0\u09a4\u09c7 \u09aa\u09be\u09b0\u09bf\u0964<\/p>\n<p>\u09af\u09a6\u09bf \u09a4\u09cb\u09ae\u09be\u0995\u09c7 \u09ac\u09b2\u09be \u09b9\u09df \u09eb + \u09ec \u0995\u09a4? \u09a4\u09c1\u09ae\u09bf \u09a4\u09cb \u099c\u09be\u09a8\u09cb\u0987 \u09af\u09c7 \u09eb + \u09eb = \u09e7\u09e6\u0964 \u0986\u09b0 \u09ec \u09b9\u09b2\u09cb \u09eb-\u098f\u09b0 \u099a\u09c7\u09df\u09c7 \u09a0\u09bf\u0995 \u09e7 \u09ac\u09c7\u09b6\u09bf\u0964 \u09a4\u09be\u09b9\u09b2\u09c7 \u09e7\u09e6-\u098f\u09b0 \u09b8\u09be\u09a5\u09c7 \u09e7 \u09af\u09cb\u0997 \u0995\u09b0\u09c7 \u09a6\u09be\u0993\u0964 \u099a\u09cb\u0996\u09c7\u09b0 \u09aa\u09b2\u0995\u09c7 \u0989\u09a4\u09cd\u09a4\u09b0 \u09b9\u09ac\u09c7 \u09e7\u09e7\u0964<\/p>\n<h2>\u0997\u09c7\u09ae \u0996\u09c7\u09b2\u09c7 \u09aa\u09cd\u09b0\u09cd\u09af\u09be\u0995\u099f\u09bf\u09b8 \u0995\u09b0\u09cb: Mental Math Racing<\/h2>\n<p>\u0985\u0999\u09cd\u0995 \u09b6\u09c1\u09a7\u09c1 \u09aa\u09dc\u09b2\u09c7 \u09b9\u09df \u09a8\u09be, \u09aa\u09cd\u09b0\u09cd\u09af\u09be\u0995\u099f\u09bf\u09b8 \u0995\u09b0\u09a4\u09c7 \u09b9\u09df\u0964 \u0986\u09b0 \u09aa\u09cd\u09b0\u09cd\u09af\u09be\u0995\u099f\u09bf\u09b8\u099f\u09be \u09af\u09be\u09a4\u09c7 \u09ac\u09cb\u09b0\u09bf\u0982 \u09a8\u09be \u09b9\u09df, \u09a4\u09be\u0987 \u0986\u09ae\u09bf \u09a4\u09cb\u09ae\u09be\u09a6\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u098f\u0995\u099f\u09bf \u09a6\u09be\u09b0\u09c1\u09a3 \u0995\u09be\u09b0 \u09b0\u09c7\u09b8\u09bf\u0982 \u0997\u09c7\u09ae (Car Racing Game) \u09a4\u09c8\u09b0\u09bf \u0995\u09b0\u09c7\u099b\u09bf\u0964 \u09a8\u09bf\u099a\u09c7 \u09a6\u09c7\u0993\u09df\u09be \u0997\u09c7\u09ae\u099f\u09bf \u0996\u09c7\u09b2\u09c7 \u09a8\u09bf\u099c\u09c7\u09b0 \u09b8\u09cd\u09aa\u09bf\u09a1 \u099f\u09c7\u09b8\u09cd\u099f \u0995\u09b0\u09c7 \u09a8\u09be\u0993\u0964<\/p>\n<h3>\u0995\u09c0\u09ad\u09be\u09ac\u09c7 \u0996\u09c7\u09b2\u09ac\u09c7?<\/h3>\n<ul>\n<li>\u09a8\u09bf\u099a\u09c7 <strong>\u2018\u09b0\u09c7\u09b8 \u09b6\u09c1\u09b0\u09c1 \u0995\u09b0\u09c1\u09a8\u2019<\/strong> \u09ac\u09be\u099f\u09a8\u09c7 \u0995\u09cd\u09b2\u09bf\u0995 \u0995\u09b0\u09b2\u09c7\u0987 \u09a4\u09cb\u09ae\u09be\u09b0 \u0997\u09be\u09dc\u09bf \u099a\u09b2\u09a4\u09c7 \u09b6\u09c1\u09b0\u09c1 \u0995\u09b0\u09ac\u09c7\u0964<\/li>\n<li>\u09b8\u09cd\u0995\u09cd\u09b0\u09bf\u09a8\u09c7\u09b0 \u09a8\u09bf\u099a\u09c7 \u098f\u0995\u099f\u09bf \u09af\u09cb\u0997 \u0985\u0999\u09cd\u0995 \u09ad\u09c7\u09b8\u09c7 \u0989\u09a0\u09ac\u09c7 (\u09af\u09c7\u09ae\u09a8 \u09ea + \u09e9 = ?) \u0986\u09b0 \u09a4\u09be\u09b0 \u09a0\u09bf\u0995 \u09a8\u09bf\u099a\u09c7 \u09a4\u09bf\u09a8\u099f\u09bf \u0997\u09cb\u09b2\u0995\u09c7\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u09a4\u09bf\u09a8\u099f\u09bf \u0986\u09b2\u09be\u09a6\u09be \u09b8\u0982\u0996\u09cd\u09af\u09be \u09ad\u09be\u09b8\u09a4\u09c7 \u09a5\u09be\u0995\u09ac\u09c7\u0964<\/li>\n<li>\u09b8\u09a0\u09bf\u0995 \u0989\u09a4\u09cd\u09a4\u09b0\u099f\u09bf\u09a4\u09c7 \u09a6\u09cd\u09b0\u09c1\u09a4 \u0986\u0999\u09c1\u09b2 \u09a6\u09bf\u09df\u09c7 \u099f\u09cd\u09af\u09be\u09aa \u0995\u09b0\u09cb\u0964 \u09b8\u09a0\u09bf\u0995 \u0989\u09a4\u09cd\u09a4\u09b0 \u09a6\u09bf\u09b2\u09c7 \u0997\u09be\u09dc\u09bf\u09b0 \u099c\u09cd\u09ac\u09be\u09b2\u09be\u09a8\u09bf (Fuel) \u0986\u09b0 \u0997\u09a4\u09bf (Speed) \u098f\u0995 \u09a7\u09be\u0995\u09cd\u0995\u09be\u09df \u0985\u09a8\u09c7\u0995\u099f\u09be \u09ac\u09c7\u09dc\u09c7 \u09af\u09be\u09ac\u09c7 \u0986\u09b0 \u09a4\u09c1\u09ae\u09bf \u09aa\u09df\u09c7\u09a8\u09cd\u099f \u09aa\u09be\u09ac\u09c7!<\/li>\n<li>\u0995\u09bf\u09a8\u09cd\u09a4\u09c1 \u09b8\u09be\u09ac\u09a7\u09be\u09a8! \u09ad\u09c1\u09b2 \u0989\u09a4\u09cd\u09a4\u09b0\u09c7 \u099f\u09cd\u09af\u09be\u09aa \u0995\u09b0\u09b2\u09c7 \u0997\u09be\u09dc\u09bf\u09a4\u09c7 \u09b9\u09be\u09b0\u09cd\u09a1 \u09ac\u09cd\u09b0\u09c7\u0995 \u0995\u09b7\u09ac\u09c7 \u0986\u09b0 \u099c\u09cd\u09ac\u09be\u09b2\u09be\u09a8\u09bf \u0985\u09a8\u09c7\u0995\u099f\u09be \u0995\u09ae\u09c7 \u09af\u09be\u09ac\u09c7\u0964<\/li>\n<li>\u099c\u09cd\u09ac\u09be\u09b2\u09be\u09a8\u09bf \u09b6\u09c2\u09a8\u09cd\u09af \u09b9\u09df\u09c7 \u09af\u09be\u0993\u09df\u09be\u09b0 \u0986\u0997\u09c7 \u09a4\u09c1\u09ae\u09bf \u0995\u09a4 \u09ac\u09c7\u09b6\u09bf \u09a6\u09c2\u09b0\u09a4\u09cd\u09ac (Score) \u09aa\u09be\u09b0 \u0995\u09b0\u09a4\u09c7 \u09aa\u09be\u09b0\u09cb, \u09b8\u09c7\u099f\u09be\u0987 \u09b9\u09b2\u09cb \u0986\u09b8\u09b2 \u099a\u09cd\u09af\u09be\u09b2\u09c7\u099e\u09cd\u099c\u0964<\/li>\n<\/ul>\n<p>\u09a4\u09be\u09b9\u09b2\u09c7 \u0986\u09b0 \u09a6\u09c7\u09b0\u09bf \u0995\u09c7\u09a8? \u098f\u0996\u09a8\u0987 \u09a8\u09bf\u099a\u09c7\u09b0 \u09b0\u09c7\u09b8\u09bf\u0982 \u099f\u09cd\u09b0\u09cd\u09af\u09be\u0995\u09c7 \u09a8\u09c7\u09ae\u09c7 \u09aa\u09dc\u09cb \u0986\u09b0 \u09a8\u09bf\u099c\u09c7\u09b0 \u09ae\u09c7\u09a8\u09cd\u099f\u09be\u09b2 \u09ae\u09cd\u09af\u09be\u09a5 \u09b8\u09cd\u09aa\u09bf\u09a1 \u09ac\u09be\u09dc\u09bf\u09df\u09c7 \u09a8\u09be\u0993!<\/p>\n    <div id=\"qsh-27036-391\" class=\"qsh-sim-frame-wrap\" style=\"--qsh-aspect: 4\/3;\">\n        <div class=\"qsh-sim-bar\">\n            <div class=\"qsh-sim-label\"><span class=\"qsh-dot\"><\/span> Interactive Simulator<\/div>\n            <div class=\"qsh-sim-controls\">\n                <button type=\"button\" class=\"qsh-sim-btn qsh-btn-reload\" onclick=\"document.getElementById('if-qsh-27036-391').srcdoc = document.getElementById('if-qsh-27036-391').srcdoc;\" aria-label=\"Restart\">\n                    <svg viewbox=\"0 0 24 24\" width=\"14\" height=\"14\" fill=\"currentColor\"><path d=\"M17.65 6.35C16.2 4.9 14.21 4 12 4c-4.42 0-7.99 3.58-7.99 8s3.57 8 7.99 8c3.73 0 6.84-2.55 7.73-6h-2.08c-.82 2.33-3.04 4-5.65 4-3.31 0-6-2.69-6-6s2.69-6 6-6c1.66 0 3.14.69 4.22 1.78L13 11h7V4l-2.35 2.35z\"><\/path><\/svg>\n                <\/button>\n                <button type=\"button\" class=\"qsh-sim-btn qsh-btn-fs\" id=\"fs-btn-qsh-27036-391\" aria-label=\"Fullscreen\">\n                    <svg viewbox=\"0 0 24 24\" width=\"14\" height=\"14\" fill=\"currentColor\"><path d=\"M7 14H5v5h5v-2H7v-3zm-2-4h2V7h3V5H5v5zm12 7h-3v2h5v-5h-2v3zM14 5v2h3v3h2V5h-5z\"><\/path><\/svg>\n                    <span>Expand<\/span>\n                <\/button>\n            <\/div>\n        <\/div>\n        <div class=\"qsh-sim-viewport\">\n            <iframe id=\"if-qsh-27036-391\" srcdoc=\"&lt;!DOCTYPE html&gt;&lt;html&gt;&lt;head&gt;&lt;base href=&quot;https:\/\/qsh.in\/boards\/wbbse\/&quot;&gt;&lt;meta name=&quot;viewport&quot; content=&quot;width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no&quot;&gt;&lt;style&gt;*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;}html,body{width:100%;height:100%;margin:0;padding:0;overflow:hidden;touch-action:manipulation;background:#0b0f19;color:#f8fafc;font-family:system-ui,-apple-system,sans-serif;}&lt;\/style&gt;&lt;style&gt;:root {\r\n    --bg-sky: #020617;\r\n    --road-color: #1e293b;\r\n    --primary: #3b82f6;\r\n    --primary-glow: rgba(59, 130, 246, 0.6);\r\n    --success: #22c55e;\r\n    --danger: #ef4444;\r\n    --warning: #eab308;\r\n    --text-main: #f8fafc;\r\n    --font-ui: system-ui, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Roboto, sans-serif;\r\n    --road-speed: 2s;\r\n}\r\n\r\n#game-container * {\r\n    box-sizing: border-box;\r\n    margin: 0;\r\n    padding: 0;\r\n}\r\n\r\n#game-container {\r\n    position: relative;\r\n    width: 100%;\r\n    max-width: 600px;\r\n    height: 100vh;\r\n    max-height: 900px;\r\n    background: linear-gradient(180deg, var(--bg-sky) 0%, #0f172a 40%, #000 100%);\r\n    overflow: hidden;\r\n    touch-action: manipulation;\r\n    -webkit-tap-highlight-color: transparent;\r\n    user-select: none;\r\n    font-family: var(--font-ui);\r\n    margin: 0 auto;\r\n}\r\n\r\n\/* --- 3D Road Environment --- *\/\r\n#world {\r\n    position: absolute; top: 0; left: 0;\r\n    width: 100%; height: 100%;\r\n    perspective: 800px; overflow: hidden;\r\n    z-index: 1;\r\n}\r\n\r\n#road {\r\n    position: absolute; bottom: 0%; left: -50%;\r\n    width: 200%; height: 130%;\r\n    background: var(--road-color);\r\n    transform-origin: bottom center;\r\n    transform: rotateX(76deg);\r\n    box-shadow: inset 0 50px 100px rgba(0,0,0,0.8);\r\n}\r\n\r\n\/* Red &amp; White Racing Curbs (Side Borders) *\/\r\n.road-border {\r\n    position: absolute; top: -50%;\r\n    width: 20px; height: 200%;\r\n    background-image: linear-gradient(to bottom, #ef4444 50%, #ffffff 50%);\r\n    background-size: 100% 120px;\r\n    animation: scroll-road var(--road-speed) linear infinite;\r\n    box-shadow: 0 0 20px rgba(0,0,0,0.5);\r\n}\r\n.border-left { left: 25%; }\r\n.border-right { left: 75%; margin-left: -20px; }\r\n\r\n\/* Yellow Dashed Lane Lines (Inner) *\/\r\n.lane-line {\r\n    position: absolute; top: -50%;\r\n    width: 8px; height: 200%;\r\n    background-image: linear-gradient(to bottom, transparent 50%, #fef08a 50%);\r\n    background-size: 100% 120px;\r\n    animation: scroll-road var(--road-speed) linear infinite;\r\n}\r\n.line-left { left: 40%; }\r\n.line-right { left: 60%; margin-left: -8px; }\r\n\r\n@keyframes scroll-road {\r\n    0% { background-position: 0 0; }\r\n    100% { background-position: 0 120px; }\r\n}\r\n\r\n\/* --- HUD (Top) --- *\/\r\n#hud {\r\n    position: absolute; top: 0; left: 0; width: 100%;\r\n    padding: clamp(1rem, 2vh, 1.5rem);\r\n    display: flex; justify-content: space-between; align-items: flex-start;\r\n    z-index: 10; pointer-events: none;\r\n    background: linear-gradient(180deg, rgba(2,6,23,0.95) 0%, transparent 100%);\r\n}\r\n\r\n.hud-panel { display: flex; flex-direction: column; align-items: center; }\r\n.center-panel { flex-grow: 1; margin: 0 1rem; }\r\n.hud-label { font-size: 0.65rem; color: #94a3b8; font-weight: 700; margin-bottom: 4px; letter-spacing: 0.5px;}\r\n\r\n\/* Score Style *\/\r\n.score-box { font-size: 1.4rem; font-weight: 900; color: var(--warning); text-shadow: 0 0 10px rgba(234,179,8,0.5); font-variant-numeric: tabular-nums; }\r\n\r\n\/* Battery Style Fuel *\/\r\n.battery-wrapper {\r\n    display: flex; align-items: center; justify-content: center;\r\n    margin-top: 2px;\r\n}\r\n.battery-body {\r\n    width: clamp(50px, 12vw, 70px);\r\n    height: 20px;\r\n    border: 2px solid #64748b;\r\n    border-radius: 4px;\r\n    padding: 2px;\r\n    background: rgba(0,0,0,0.5);\r\n    position: relative;\r\n    box-shadow: inset 0 0 5px rgba(0,0,0,0.8);\r\n}\r\n.battery-level {\r\n    height: 100%;\r\n    width: 100%;\r\n    background: var(--success);\r\n    border-radius: 1px;\r\n    transition: width 0.3s ease, background-color 0.3s ease;\r\n    box-shadow: inset 0 0 5px rgba(255,255,255,0.3);\r\n}\r\n.battery-nub {\r\n    width: 4px; height: 8px;\r\n    background: #64748b;\r\n    border-radius: 0 2px 2px 0;\r\n}\r\n\r\n\/* Digital Speedometer Style *\/\r\n.speedo-box {\r\n    background: #020617;\r\n    border: 2px solid var(--primary);\r\n    box-shadow: inset 0 0 15px rgba(59,130,246,0.5), 0 0 10px rgba(59,130,246,0.3);\r\n    border-radius: 6px;\r\n    padding: 4px 8px;\r\n    display: flex; align-items: baseline; justify-content: center; gap: 4px;\r\n    color: #38bdf8;\r\n    text-shadow: 0 0 8px #38bdf8;\r\n    min-width: 70px;\r\n}\r\n#speed-display {\r\n    font-size: 1.4rem;\r\n    font-weight: 900;\r\n    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;\r\n    font-variant-numeric: tabular-nums;\r\n}\r\n.speed-unit {\r\n    font-size: 0.6rem;\r\n    color: #94a3b8;\r\n    text-shadow: none;\r\n    font-weight: bold;\r\n}\r\n\r\n\/* --- Car &amp; Animations (Center) --- *\/\r\n#car-container {\r\n    position: absolute; \r\n    bottom: 45%; \r\n    left: 50%;\r\n    width: clamp(70px, 18vw, 100px);\r\n    margin-left: calc(clamp(70px, 18vw, 100px) \/ -2);\r\n    z-index: 30;\r\n}\r\n\r\n.car-rumble { animation: rumble 0.1s infinite alternate linear; }\r\n@keyframes rumble {\r\n    0% { transform: translate(0, 0px); }\r\n    100% { transform: translate(1px, 2px); }\r\n}\r\n\r\n.flame.active { animation: flicker 0.05s infinite alternate; display: block !important; }\r\n@keyframes flicker {\r\n    0% { transform: scaleY(1); fill: #38bdf8; }\r\n    100% { transform: scaleY(1.5); fill: #818cf8; }\r\n}\r\n.brakelight.active { fill: #ef4444; filter: drop-shadow(0 0 15px #ef4444); }\r\n\r\n\/* Fuel\/Score floating text animation *\/\r\n.float-text {\r\n    position: absolute; left: 50%; bottom: 58%; \r\n    transform: translateX(-50%);\r\n    font-size: 1.8rem; font-weight: 900;\r\n    pointer-events: none; z-index: 50;\r\n    animation: floatUp 1s cubic-bezier(0.2, 1, 0.3, 1) forwards;\r\n}\r\n@keyframes floatUp {\r\n    0% { opacity: 1; transform: translate(-50%, 0) scale(0.8); }\r\n    100% { opacity: 0; transform: translate(-50%, -100px) scale(1.2); }\r\n}\r\n.text-success { color: var(--success); text-shadow: 0 0 15px rgba(34,197,94,0.8); }\r\n.text-danger { color: var(--danger); text-shadow: 0 0 15px rgba(239,68,68,0.8); }\r\n\r\n\/* --- Play Zone (Thumb Zone - Bottom) --- *\/\r\n#play-zone {\r\n    position: absolute; bottom: 0; left: 0; width: 100%;\r\n    display: flex; flex-direction: column; align-items: center;\r\n    z-index: 40;\r\n    padding: 2rem 1rem calc(2rem + env(safe-area-inset-bottom)); \r\n    background: linear-gradient(0deg, rgba(2,6,23,0.98) 20%, rgba(2,6,23,0.8) 70%, transparent 100%);\r\n}\r\n\r\n#equation-display {\r\n    background: rgba(15, 23, 42, 0.95);\r\n    border: 2px solid var(--primary);\r\n    box-shadow: 0 0 20px var(--primary-glow), inset 0 0 10px var(--primary-glow);\r\n    border-radius: 20px;\r\n    padding: 0.8rem 2rem;\r\n    font-size: clamp(2.5rem, 8vw, 4rem);\r\n    font-weight: 900; color: var(--text-main);\r\n    display: flex; gap: 0.8rem; align-items: center;\r\n    backdrop-filter: blur(8px);\r\n    margin-bottom: 1.5rem;\r\n    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;\r\n}\r\n\r\n.operator { color: #60a5fa; }\r\n.q-mark { color: var(--warning); border-bottom: 4px solid var(--warning); }\r\n\r\n\/* Floating Orbs *\/\r\n#floating-options {\r\n    display: flex; justify-content: center; gap: 1rem; width: 100%; max-width: 400px;\r\n}\r\n\r\n.orb-btn {\r\n    flex: 1;\r\n    aspect-ratio: 1\/1;\r\n    background: radial-gradient(circle at 30% 30%, #475569, #1e293b);\r\n    border: 3px solid #64748b;\r\n    border-radius: 50%;\r\n    color: white; font-size: 2.2rem; font-weight: 800;\r\n    box-shadow: 0 8px 20px rgba(0,0,0,0.6), inset 0 -5px 15px rgba(0,0,0,0.5);\r\n    cursor: pointer;\r\n    touch-action: manipulation;\r\n    animation: float 3s ease-in-out infinite;\r\n    transition: transform 0.1s, border-color 0.2s;\r\n}\r\n\r\n.orb-btn:nth-child(2) { animation-delay: -1s; }\r\n.orb-btn:nth-child(3) { animation-delay: -2s; }\r\n.orb-btn:active { transform: scale(0.9) !important; border-color: var(--warning); background: radial-gradient(circle at 30% 30%, #64748b, #334155); }\r\n\r\n@keyframes float {\r\n    0%, 100% { transform: translateY(0px); }\r\n    50% { transform: translateY(-10px); }\r\n}\r\n\r\n\/* Overlays *\/\r\n.screen {\r\n    position: absolute; top: 0; left: 0; width: 100%; height: 100%;\r\n    background: rgba(2, 6, 23, 0.95);\r\n    display: flex; flex-direction: column; justify-content: center; align-items: center;\r\n    z-index: 100; text-align: center; padding: 2rem; backdrop-filter: blur(10px);\r\n}\r\n.screen.hidden { display: none; }\r\n\r\n#overlay-title { color: var(--text-main); font-size: 2.2rem; margin-bottom: 1rem; }\r\n#overlay-desc { color: #cbd5e1; font-size: 1.1rem; line-height: 1.6; margin-bottom: 2rem; }\r\n\r\n.primary-btn {\r\n    background: var(--success); color: white;\r\n    border: none; border-radius: 99px;\r\n    padding: 1.2rem 2.5rem; font-size: 1.2rem; font-weight: 800;\r\n    cursor: pointer; text-transform: uppercase;\r\n    box-shadow: 0 10px 25px rgba(34, 197, 94, 0.4);\r\n    transition: transform 0.1s;\r\n}\r\n.primary-btn:active { transform: scale(0.95); }\r\n\r\n.correct-flash { border-color: var(--success) !important; box-shadow: 0 0 30px var(--success) !important; }\r\n.wrong-flash { border-color: var(--danger) !important; box-shadow: 0 0 30px var(--danger) !important; }\r\n.shake { animation: shake-anim 0.4s ease-in-out; }\r\n@keyframes shake-anim {\r\n    0%, 100% { transform: translateX(0); }\r\n    25% { transform: translateX(-15px); }\r\n    75% { transform: translateX(15px); }\r\n}&lt;\/style&gt;&lt;\/head&gt;&lt;body&gt;&lt;div id=&quot;game-container&quot;&gt;\r\n    <!-- 3D Perspective Environment -->\r\n    &lt;div id=&quot;world&quot;&gt;\r\n        &lt;div id=&quot;road&quot;&gt;\r\n            <!-- Side Racing Curbs (Red & White) -->\r\n            &lt;div class=&quot;road-border border-left&quot;&gt;&lt;\/div&gt;\r\n            &lt;div class=&quot;road-border border-right&quot;&gt;&lt;\/div&gt;\r\n            \r\n            <!-- Inner Lane Lines (Yellow Dashed) -->\r\n            &lt;div class=&quot;lane-line line-left&quot;&gt;&lt;\/div&gt;\r\n            &lt;div class=&quot;lane-line line-right&quot;&gt;&lt;\/div&gt;\r\n        &lt;\/div&gt;\r\n    &lt;\/div&gt;\r\n\r\n    <!-- Heads Up Display (Top) -->\r\n    &lt;div id=&quot;hud&quot;&gt;\r\n        &lt;div class=&quot;hud-panel&quot;&gt;\r\n            &lt;div class=&quot;hud-label&quot;&gt;\u09a6\u09c2\u09b0\u09a4\u09cd\u09ac (SCORE)&lt;\/div&gt;\r\n            &lt;div class=&quot;hud-value score-box&quot; id=&quot;score-display&quot;&gt;\u09e6&lt;\/div&gt;\r\n        &lt;\/div&gt;\r\n        \r\n        <!-- Battery Fuel -->\r\n        &lt;div class=&quot;hud-panel center-panel&quot;&gt;\r\n            &lt;div class=&quot;hud-label&quot;&gt;\u099c\u09cd\u09ac\u09be\u09b2\u09be\u09a8\u09c0 (FUEL)&lt;\/div&gt;\r\n            &lt;div class=&quot;battery-wrapper&quot;&gt;\r\n                &lt;div class=&quot;battery-body&quot;&gt;\r\n                    &lt;div class=&quot;battery-level&quot; id=&quot;fuel-bar&quot;&gt;&lt;\/div&gt;\r\n                &lt;\/div&gt;\r\n                &lt;div class=&quot;battery-nub&quot;&gt;&lt;\/div&gt;\r\n            &lt;\/div&gt;\r\n        &lt;\/div&gt;\r\n\r\n        <!-- Digital Speedometer -->\r\n        &lt;div class=&quot;hud-panel&quot;&gt;\r\n            &lt;div class=&quot;hud-label&quot;&gt;\u0997\u09a4\u09bf (SPEED)&lt;\/div&gt;\r\n            &lt;div class=&quot;speedo-box&quot;&gt;\r\n                &lt;span id=&quot;speed-display&quot;&gt;\u09e8\u09e6&lt;\/span&gt;\r\n                &lt;span class=&quot;speed-unit&quot;&gt;\u0995\u09bf\u09ae\u09bf\/\u0998&lt;\/span&gt;\r\n            &lt;\/div&gt;\r\n        &lt;\/div&gt;\r\n    &lt;\/div&gt;\r\n\r\n    <!-- The Player Car (Center Screen) -->\r\n    &lt;div id=&quot;car-container&quot; class=&quot;car-rumble&quot;&gt;\r\n        &lt;svg id=&quot;player-car&quot; viewBox=&quot;0 0 100 200&quot; xmlns=&quot;http:\/\/www.w3.org\/2000\/svg&quot;&gt;\r\n            <!-- Exhaust Flames -->\r\n            &lt;path id=&quot;flame-left&quot; class=&quot;flame hidden&quot; d=&quot;M 30 180 Q 35 230 40 180 Z&quot; fill=&quot;#38bdf8&quot; \/&gt;\r\n            &lt;path id=&quot;flame-right&quot; class=&quot;flame hidden&quot; d=&quot;M 60 180 Q 65 230 70 180 Z&quot; fill=&quot;#38bdf8&quot; \/&gt;\r\n            <!-- Tires -->\r\n            &lt;rect x=&quot;15&quot; y=&quot;30&quot; width=&quot;10&quot; height=&quot;30&quot; rx=&quot;3&quot; fill=&quot;#0f172a&quot;\/&gt;\r\n            &lt;rect x=&quot;75&quot; y=&quot;30&quot; width=&quot;10&quot; height=&quot;30&quot; rx=&quot;3&quot; fill=&quot;#0f172a&quot;\/&gt;\r\n            &lt;rect x=&quot;15&quot; y=&quot;140&quot; width=&quot;12&quot; height=&quot;35&quot; rx=&quot;4&quot; fill=&quot;#020617&quot;\/&gt;\r\n            &lt;rect x=&quot;73&quot; y=&quot;140&quot; width=&quot;12&quot; height=&quot;35&quot; rx=&quot;4&quot; fill=&quot;#020617&quot;\/&gt;\r\n            <!-- Body Main -->\r\n            &lt;path d=&quot;M 25 50 C 25 20, 75 20, 75 50 L 80 160 C 80 185, 20 185, 20 160 Z&quot; fill=&quot;#ef4444&quot; stroke=&quot;#b91c1c&quot; stroke-width=&quot;2&quot;\/&gt;\r\n            <!-- Cockpit \/ Windshield -->\r\n            &lt;path d=&quot;M 32 80 C 32 60, 68 60, 68 80 L 72 110 C 72 125, 28 125, 28 110 Z&quot; fill=&quot;#020617&quot; stroke=&quot;#334155&quot; stroke-width=&quot;2&quot;\/&gt;\r\n            <!-- Headlights -->\r\n            &lt;circle cx=&quot;30&quot; cy=&quot;35&quot; r=&quot;4&quot; fill=&quot;#fef08a&quot; class=&quot;headlight&quot;\/&gt;\r\n            &lt;circle cx=&quot;70&quot; cy=&quot;35&quot; r=&quot;4&quot; fill=&quot;#fef08a&quot; class=&quot;headlight&quot;\/&gt;\r\n            <!-- Brake Lights -->\r\n            &lt;rect id=&quot;brake-left&quot; x=&quot;25&quot; y=&quot;175&quot; width=&quot;12&quot; height=&quot;5&quot; rx=&quot;2&quot; fill=&quot;#7f1d1d&quot; class=&quot;brakelight&quot;\/&gt;\r\n            &lt;rect id=&quot;brake-right&quot; x=&quot;63&quot; y=&quot;175&quot; width=&quot;12&quot; height=&quot;5&quot; rx=&quot;2&quot; fill=&quot;#7f1d1d&quot; class=&quot;brakelight&quot;\/&gt;\r\n            <!-- Spoiler -->\r\n            &lt;path d=&quot;M 12 165 L 88 165 L 80 175 L 20 175 Z&quot; fill=&quot;#1e293b&quot;\/&gt;\r\n        &lt;\/svg&gt;\r\n    &lt;\/div&gt;\r\n\r\n    <!-- Floating Feedback Text Container -->\r\n    &lt;div id=&quot;feedback-anim-container&quot;&gt;&lt;\/div&gt;\r\n\r\n    <!-- Gameplay Area: Equation & Options (Thumb Zone) -->\r\n    &lt;div id=&quot;play-zone&quot;&gt;\r\n        &lt;div id=&quot;equation-display&quot;&gt;\r\n            &lt;span id=&quot;num-a&quot;&gt;\u09e6&lt;\/span&gt; &lt;span class=&quot;operator&quot;&gt;+&lt;\/span&gt; &lt;span id=&quot;num-b&quot;&gt;\u09e6&lt;\/span&gt; &lt;span class=&quot;operator&quot;&gt;=&lt;\/span&gt; &lt;span class=&quot;q-mark&quot;&gt;?&lt;\/span&gt;\r\n        &lt;\/div&gt;\r\n        \r\n        &lt;div id=&quot;floating-options&quot;&gt;\r\n            &lt;button class=&quot;orb-btn&quot; id=&quot;opt-0&quot;&gt;\u09e6&lt;\/button&gt;\r\n            &lt;button class=&quot;orb-btn&quot; id=&quot;opt-1&quot;&gt;\u09e6&lt;\/button&gt;\r\n            &lt;button class=&quot;orb-btn&quot; id=&quot;opt-2&quot;&gt;\u09e6&lt;\/button&gt;\r\n        &lt;\/div&gt;\r\n    &lt;\/div&gt;\r\n\r\n    <!-- Screens -->\r\n    &lt;div id=&quot;overlay&quot; class=&quot;screen&quot;&gt;\r\n        &lt;h1 id=&quot;overlay-title&quot;&gt;\u09ae\u09c7\u09a8\u09cd\u099f\u09be\u09b2 \u09ae\u09cd\u09af\u09be\u09a5 \u09b0\u09c7\u09b8\u09bf\u0982&lt;\/h1&gt;\r\n        &lt;p id=&quot;overlay-desc&quot;&gt;\u09b8\u09a0\u09bf\u0995 \u09ad\u09be\u09b8\u09ae\u09be\u09a8 \u0989\u09a4\u09cd\u09a4\u09b0\u09c7 \u099f\u09cd\u09af\u09be\u09aa \u0995\u09b0\u09c1\u09a8\u0964&lt;br&gt;\u09b8\u09a0\u09bf\u0995 \u0989\u09a4\u09cd\u09a4\u09b0 \u099c\u09cd\u09ac\u09be\u09b2\u09be\u09a8\u09c0 \u0993 \u0997\u09a4\u09bf \u09ac\u09be\u09dc\u09be\u09ac\u09c7!&lt;\/p&gt;\r\n        &lt;button id=&quot;btn-start&quot; class=&quot;primary-btn&quot;&gt;\u09b0\u09c7\u09b8 \u09b6\u09c1\u09b0\u09c1 \u0995\u09b0\u09c1\u09a8&lt;\/button&gt;\r\n    &lt;\/div&gt;\r\n&lt;\/div&gt;&lt;script&gt;\n        window.GameController = {\n            saveScore: function(score, time, extraData) {\n                window.parent.postMessage({\n                    action: 'qsh_save_score',\n                    sim_id: 27036,\n                    score: score,\n                    time: time || 0,\n                    meta: extraData || {}\n                }, 'https:\/\/qsh.in\/boards\/wbbse');\n            }\n        };\n    &lt;\/script&gt;&lt;script&gt;(() =&gt; {\r\n    \/\/ --- Bengali Numerals Utility ---\r\n    const EN_TO_BN = {'0':'\u09e6', '1':'\u09e7', '2':'\u09e8', '3':'\u09e9', '4':'\u09ea', '5':'\u09eb', '6':'\u09ec', '7':'\u09ed', '8':'\u09ee', '9':'\u09ef'};\r\n    function toBn(numStr) {\r\n        return String(numStr).split('').map(c =&gt; EN_TO_BN[c] || c).join('');\r\n    }\r\n\r\n    \/\/ --- Configuration &amp; State (Kids Balanced) ---\r\n    const Config = {\r\n        maxSpeed: 80,\r\n        maxFuel: 100,\r\n        fuelDrainBase: 1.5, \r\n        fuelGain: 20, \r\n        fuelPenalty: 5,\r\n        speedGain: 20,\r\n        friction: 2\r\n    };\r\n\r\n    const State = {\r\n        isPlaying: false,\r\n        lastTime: 0,\r\n        score: 0,\r\n        speed: 20,\r\n        fuel: Config.maxFuel,\r\n        correctAnswer: 0,\r\n        totalAttempts: 0,\r\n        correctAttempts: 0,\r\n        startTime: 0\r\n    };\r\n\r\n    \/\/ --- DOM References ---\r\n    const DOM = {\r\n        root: document.getElementById('game-container') || document.documentElement,\r\n        scoreDisp: document.getElementById('score-display'),\r\n        speedDisp: document.getElementById('speed-display'),\r\n        fuelBar: document.getElementById('fuel-bar'),\r\n        numA: document.getElementById('num-a'),\r\n        numB: document.getElementById('num-b'),\r\n        eqBox: document.getElementById('equation-display'),\r\n        orbs: [\r\n            document.getElementById('opt-0'),\r\n            document.getElementById('opt-1'),\r\n            document.getElementById('opt-2')\r\n        ],\r\n        animContainer: document.getElementById('feedback-anim-container'),\r\n        car: document.getElementById('car-container'),\r\n        flames: document.querySelectorAll('.flame'),\r\n        brakes: document.querySelectorAll('.brakelight'),\r\n        overlay: document.getElementById('overlay'),\r\n        overlayTitle: document.getElementById('overlay-title'),\r\n        overlayDesc: document.getElementById('overlay-desc'),\r\n        btnStart: document.getElementById('btn-start')\r\n    };\r\n\r\n    \/\/ --- Text To Speech (TTS) ---\r\n    const TTS = {\r\n        synth: window.speechSynthesis,\r\n        enabled: false,\r\n        positive: [&quot;Great!&quot;, &quot;Correct!&quot;, &quot;Nice!&quot;, &quot;Wonderful!&quot;, &quot;Awesome!&quot;, &quot;Perfect!&quot;],\r\n        negative: [&quot;Oh no!&quot;, &quot;Oops!&quot;, &quot;Try again!&quot;, &quot;Watch out!&quot;],\r\n        \r\n        init() {\r\n            if ('speechSynthesis' in window) {\r\n                this.enabled = true;\r\n                const u = new SpeechSynthesisUtterance('');\r\n                u.volume = 0;\r\n                this.synth.speak(u);\r\n            }\r\n        },\r\n        speak(isCorrect) {\r\n            if (!this.enabled) return;\r\n            const arr = isCorrect ? this.positive : this.negative;\r\n            const text = arr[Math.floor(Math.random() * arr.length)];\r\n            \r\n            this.synth.cancel(); \r\n            const utterance = new SpeechSynthesisUtterance(text);\r\n            utterance.rate = 1.1; \r\n            utterance.pitch = isCorrect ? 1.2 : 0.9;\r\n            this.synth.speak(utterance);\r\n        }\r\n    };\r\n\r\n    \/\/ --- Game Logic ---\r\n    function generateProblem() {\r\n        const a = Math.floor(Math.random() * 9) + 1;\r\n        const b = Math.floor(Math.random() * 9) + 1;\r\n        State.correctAnswer = a + b;\r\n\r\n        DOM.numA.textContent = toBn(a);\r\n        DOM.numB.textContent = toBn(b);\r\n\r\n        let options = new Set([State.correctAnswer]);\r\n        while(options.size &lt; 3) {\r\n            let offset = Math.floor(Math.random() * 5) - 2; \r\n            let wrongAns = State.correctAnswer + offset;\r\n            if(wrongAns &gt; 0 &amp;&amp; wrongAns !== State.correctAnswer) {\r\n                options.add(wrongAns);\r\n            } else {\r\n                options.add(State.correctAnswer + Math.floor(Math.random() * 4) + 1);\r\n            }\r\n        }\r\n        \r\n        const optsArray = Array.from(options).sort(() =&gt; Math.random() - 0.5);\r\n        DOM.orbs.forEach((btn, index) =&gt; {\r\n            btn.textContent = toBn(optsArray[index]);\r\n            btn.dataset.val = optsArray[index];\r\n        });\r\n    }\r\n\r\n    function showFloatingText(text, isPositive) {\r\n        const el = document.createElement('div');\r\n        el.className = `float-text ${isPositive ? 'text-success' : 'text-danger'}`;\r\n        el.textContent = text;\r\n        DOM.animContainer.appendChild(el);\r\n        setTimeout(() =&gt; el.remove(), 1000);\r\n    }\r\n\r\n    function handleCorrect() {\r\n        State.correctAttempts++;\r\n        TTS.speak(true);\r\n        \r\n        State.fuel = Math.min(Config.maxFuel, State.fuel + Config.fuelGain);\r\n        State.speed = Math.min(Config.maxSpeed, State.speed + Config.speedGain);\r\n        \r\n        showFloatingText(&quot;+ \u099c\u09cd\u09ac\u09be\u09b2\u09be\u09a8\u09c0&quot;, true);\r\n        DOM.eqBox.classList.add('correct-flash');\r\n        DOM.flames.forEach(f =&gt; f.classList.remove('hidden', 'active'));\r\n        void DOM.eqBox.offsetWidth; \/\/ Force Reflow\r\n        DOM.flames.forEach(f =&gt; f.classList.add('active'));\r\n\r\n        setTimeout(() =&gt; {\r\n            DOM.eqBox.classList.remove('correct-flash');\r\n            DOM.flames.forEach(f =&gt; f.classList.remove('active'));\r\n            DOM.flames.forEach(f =&gt; f.classList.add('hidden'));\r\n            generateProblem();\r\n        }, 400);\r\n    }\r\n\r\n    function handleWrong() {\r\n        TTS.speak(false);\r\n        \r\n        State.fuel = Math.max(0, State.fuel - Config.fuelPenalty);\r\n        State.speed = Math.max(10, State.speed - 15);\r\n        \r\n        showFloatingText(&quot;- \u099c\u09cd\u09ac\u09be\u09b2\u09be\u09a8\u09c0&quot;, false);\r\n        DOM.eqBox.classList.add('wrong-flash');\r\n        DOM.car.classList.add('shake');\r\n        DOM.brakes.forEach(b =&gt; b.classList.add('active'));\r\n\r\n        setTimeout(() =&gt; {\r\n            DOM.eqBox.classList.remove('wrong-flash');\r\n            DOM.car.classList.remove('shake');\r\n            DOM.brakes.forEach(b =&gt; b.classList.remove('active'));\r\n            generateProblem();\r\n        }, 500);\r\n    }\r\n\r\n    \/\/ --- Physics \/ Rendering Loop ---\r\n    function updatePhysics(dt) {\r\n        if (State.speed &gt; 20) {\r\n            State.speed -= Config.friction * (dt \/ 1000);\r\n        }\r\n\r\n        const roadAnimDuration = Math.max(0.2, 3.5 - (State.speed * 0.06));\r\n        DOM.root.style.setProperty('--road-speed', `${roadAnimDuration}s`);\r\n\r\n        State.score += (State.speed * (dt \/ 1000)) * 0.1;\r\n        DOM.scoreDisp.textContent = toBn(Math.floor(State.score));\r\n        \r\n        \/\/ Update Digital Speedometer\r\n        DOM.speedDisp.textContent = toBn(Math.floor(State.speed));\r\n        \r\n        \/\/ Pulsing glow effect on speedometer when speed is high\r\n        const speedoBox = DOM.speedDisp.parentElement;\r\n        if (State.speed &gt; 50) {\r\n            speedoBox.style.boxShadow = `inset 0 0 20px rgba(59,130,246,0.8), 0 0 15px rgba(59,130,246,0.6)`;\r\n        } else {\r\n            speedoBox.style.boxShadow = `inset 0 0 15px rgba(59,130,246,0.5), 0 0 10px rgba(59,130,246,0.3)`;\r\n        }\r\n\r\n        \/\/ Drain Fuel\r\n        State.fuel -= Config.fuelDrainBase * (dt \/ 1000);\r\n        DOM.fuelBar.style.width = `${State.fuel}%`;\r\n        \r\n        \/\/ Update Battery Colors\r\n        if (State.fuel &gt; 50) {\r\n            DOM.fuelBar.style.backgroundColor = 'var(--success)';\r\n        } else if (State.fuel &gt; 20) {\r\n            DOM.fuelBar.style.backgroundColor = 'var(--warning)';\r\n        } else {\r\n            DOM.fuelBar.style.backgroundColor = 'var(--danger)';\r\n        }\r\n\r\n        if (State.fuel &lt;= 0) {\r\n            endGame();\r\n        }\r\n    }\r\n\r\n    function gameLoop(timestamp) {\r\n        if (!State.isPlaying) return;\r\n        const dt = timestamp - State.lastTime;\r\n        State.lastTime = timestamp;\r\n        \r\n        if (dt &lt; 100) {\r\n            updatePhysics(dt);\r\n        }\r\n        \r\n        requestAnimationFrame(gameLoop);\r\n    }\r\n\r\n    \/\/ --- Game Lifecycle ---\r\n    function startGame() {\r\n        TTS.init(); \r\n        \r\n        State.isPlaying = true;\r\n        State.score = 0;\r\n        State.speed = 30; \r\n        State.fuel = Config.maxFuel;\r\n        State.totalAttempts = 0;\r\n        State.correctAttempts = 0;\r\n        State.startTime = Date.now();\r\n        \r\n        DOM.overlay.classList.add('hidden');\r\n        State.lastTime = performance.now();\r\n        generateProblem();\r\n        requestAnimationFrame(gameLoop);\r\n    }\r\n\r\n    function endGame() {\r\n        State.isPlaying = false;\r\n        \r\n        const accuracy = State.totalAttempts &gt; 0 \r\n            ? Math.round((State.correctAttempts \/ State.totalAttempts) * 100) \r\n            : 0;\r\n        const timeSpentSeconds = Math.floor((Date.now() - State.startTime) \/ 1000);\r\n        \r\n        DOM.overlayTitle.textContent = &quot;\u0997\u09c7\u09ae \u0993\u09ad\u09be\u09b0! (Game Over)&quot;;\r\n        DOM.overlayDesc.innerHTML = `\u0985\u09a4\u09bf\u0995\u09cd\u09b0\u09be\u09a8\u09cd\u09a4 \u09a6\u09c2\u09b0\u09a4\u09cd\u09ac: &lt;b&gt;${toBn(Math.floor(State.score))} \u09ae\u09bf.&lt;\/b&gt;&lt;br&gt;\u09b8\u09a0\u09bf\u0995\u09a4\u09be\u09b0 \u09b9\u09be\u09b0: &lt;b&gt;${toBn(accuracy)}%&lt;\/b&gt;`;\r\n        DOM.btnStart.textContent = &quot;\u09aa\u09c1\u09a8\u09b0\u09be\u09df \u0996\u09c7\u09b2\u09c1\u09a8&quot;;\r\n        DOM.overlay.classList.remove('hidden');\r\n\r\n        \/\/ Hook into parent QSH LMS Score Protocol\r\n        if (window.GameController &amp;&amp; typeof window.GameController.saveScore === 'function') {\r\n            window.GameController.saveScore(Math.floor(State.score), timeSpentSeconds, { \r\n                level: 'Day1-OrbRacing-Kids', \r\n                accuracy: accuracy \r\n            });\r\n        }\r\n    }\r\n\r\n    \/\/ --- Event Listeners ---\r\n    DOM.orbs.forEach(btn =&gt; {\r\n        btn.addEventListener('pointerdown', (e) =&gt; {\r\n            e.preventDefault();\r\n            if (!State.isPlaying) return;\r\n            \r\n            State.totalAttempts++;\r\n            const selectedVal = parseInt(btn.dataset.val);\r\n            \r\n            if (selectedVal === State.correctAnswer) {\r\n                handleCorrect();\r\n            } else {\r\n                handleWrong();\r\n            }\r\n            \r\n            if(navigator.vibrate) navigator.vibrate(15);\r\n        });\r\n    });\r\n\r\n    DOM.btnStart.addEventListener('pointerdown', (e) =&gt; {\r\n        e.preventDefault();\r\n        startGame();\r\n    });\r\n\r\n})();&lt;\/script&gt;&lt;\/body&gt;&lt;\/html&gt;\" sandbox=\"allow-scripts allow-forms allow-same-origin allow-pointer-lock\" allow=\"fullscreen; accelerometer; gyroscope\" allowfullscreen><\/iframe>\n        <\/div>\n    <\/div>\n    <script data-cfasync=\"false\">\n    (function() {\n        var wrap = document.getElementById('qsh-27036-391');\n        var btn  = document.getElementById('fs-btn-qsh-27036-391');\n        if (!wrap || !btn) return;\n        btn.addEventListener('click', function() {\n            if (!document.fullscreenElement) {\n                if (wrap.requestFullscreen) wrap.requestFullscreen();\n                else if (wrap.webkitRequestFullscreen) wrap.webkitRequestFullscreen();\n            } else {\n                if (document.exitFullscreen) document.exitFullscreen();\n            }\n        });\n        document.addEventListener('fullscreenchange', function() {\n            if (document.fullscreenElement === wrap) {\n                btn.classList.add('is-active');\n                btn.querySelector('span').textContent = 'Exit';\n            } else {\n                btn.classList.remove('is-active');\n                btn.querySelector('span').textContent = 'Expand';\n            }\n        });\n    })();\n    <\/script>\n    \n","protected":false},"excerpt":{"rendered":"<p>\u09a4\u09cb\u09ae\u09b0\u09be \u09af\u09be\u09b0\u09be \u0996\u09be\u09a4\u09be-\u0995\u09b2\u09ae \u09ac\u09be \u0995\u09cd\u09af\u09be\u09b2\u0995\u09c1\u09b2\u09c7\u099f\u09b0 \u099b\u09be\u09dc\u09be \u09a6\u09cd\u09b0\u09c1\u09a4 \u0985\u0999\u09cd\u0995 \u0995\u09b0\u09a4\u09c7 \u099a\u09be\u0993, \u09a4\u09be\u09a6\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u0986\u099c \u0986\u09ae\u09bf \u09ae\u09c7\u09a8\u09cd\u099f\u09be\u09b2 \u09ae\u09cd\u09af\u09be\u09a5\u09c7\u09b0 (Mental Math) \u09aa\u09cd\u09b0\u09a5\u09ae \u0995\u09cd\u09b2\u09be\u09b8 \u09a8\u09bf\u09df\u09c7 \u098f\u09b8\u09c7\u099b\u09bf\u0964 \u0986\u099c\u0995\u09c7\u09b0 \u09ac\u09bf\u09b7\u09df \u09b9\u09b2\u09cb \u09e7-\u0985\u0999\u09cd\u0995 \u09ac\u09be \u09b8\u09bf\u0999\u09cd\u0997\u09b2 \u09a1\u09bf\u099c\u09bf\u099f\u09c7\u09b0 \u09af\u09cb\u0997\u0964 \u0985\u09a8\u09c7\u0995 \u09ac\u09be\u099a\u09cd\u099a\u09be\u0987 \u099b\u09cb\u099f\u09ac\u09c7\u09b2\u09be\u09df \u0986\u0999\u09c1\u09b2 \u0997\u09c1\u09a8\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09a4\u09c7 \u09b6\u09c7\u0996\u09c7, \u09af\u09be \u09b8\u09ae\u09df\u09b8\u09be\u09aa\u09c7\u0995\u09cd\u09b7\u0964 \u0995\u09bf\u09a8\u09cd\u09a4\u09c1 \u0986\u09ae\u09b0\u09be \u0986\u099c \u098f\u09ae\u09a8 \u0995\u09bf\u099b\u09c1 \u0995\u09cc\u09b6\u09b2 \u09b6\u09bf\u0996\u09ac, \u09af\u09be\u09a4\u09c7 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8 \u09a6\u09c7\u0996\u09be\u09b0 \u09b8\u09be\u09a5\u09c7 \u09b8\u09be\u09a5\u09c7\u0987 \u09ae\u09be\u09a5\u09be\u09b0 \u09ad\u09c7\u09a4\u09b0 \u0989\u09a4\u09cd\u09a4\u09b0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-27036","post","type-post","status-publish","format-standard","hentry","category-mental-math-tricks"],"_links":{"self":[{"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/posts\/27036","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/comments?post=27036"}],"version-history":[{"count":2,"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/posts\/27036\/revisions"}],"predecessor-version":[{"id":27038,"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/posts\/27036\/revisions\/27038"}],"wp:attachment":[{"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/media?parent=27036"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/categories?post=27036"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/tags?post=27036"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}