{"common":{"save":0,"post_id":"4302","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1893","post_id":"4302","mon_id":"11445","chapter_id":"11557","question":"<p>Có 2 t\u1ed5 tr\u1ed3ng cây. Bi\u1ebft r\u1eb1ng t\u1ed5 1 có 6 b\u1ea1n m\u1ed7i b\u1ea1n tr\u1ed3ng \u0111\u01b0\u1ee3c 2 cây, t\u1ed5 2 có 5 b\u1ea1n m\u1ed7i b\u1ea1n tr\u1ed3ng \u0111\u01b0\u1ee3c 3 cây. H\u1ecfi c\u1ea3 2 t\u1ed5 tr\u1ed3ng \u0111\u01b0\u1ee3c t\u1ea5t c\u1ea3 bao nhiêu cây?<\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/hoat-dong\/trong-cay.png\" \/><\/div>","options":["12 cây","15 cây","27 cây","37 cây"],"correct":"3","level":"3","hint":"<p>Con hãy tìm s\u1ed1 cây m\u1ed7i t\u1ed5 tr\u1ed3ng \u0111\u01b0\u1ee3c, r\u1ed3i tính t\u1ed5ng c\u1ee7a c\u1ea3 2 t\u1ed5 nhé!<\/p>","answer":"<p>T\u1ed5 1 có 6 b\u1ea1n m\u1ed7i b\u1ea1n tr\u1ed3ng \u0111\u01b0\u1ee3c 2 cây. S\u1ed1 cây t\u1ed5 1 tr\u1ed3ng \u0111\u01b0\u1ee3c là:<\/p><p>6 x 2 = 6 + 6 = 12 (cây)<\/p><p>T\u1ed5 2 có 5 b\u1ea1n m\u1ed7i b\u1ea1n tr\u1ed3ng \u0111\u01b0\u1ee3c 3 cây. S\u1ed1 cây t\u1ed5 2 tr\u1ed3ng \u0111\u01b0\u1ee3c là:<\/p><p>5 x 3 = 5 + 5 + 5 = 15 (cây)<\/p><p>C\u1ea3 2 t\u1ed5 tr\u1ed3ng \u0111\u01b0\u1ee3c s\u1ed1 cây là:<\/p><p>12 + 15 = 27 (cây)<\/p><p>V\u1eady \u0111áp án \u0111úng là<strong> <span style=\"color:#27ae60;\">27<\/span> <span style=\"color:#16a085;\">cây<\/span>.<\/strong><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"126","test":"3","date":"2021-07-28 05:59:28","option_type":"txt","len":1},{"id":"1894","post_id":"4302","mon_id":"11445","chapter_id":"11557","question":"<p>Có 2 \u0111\u1ed9i nh\u1eb7t bóng trong sân ten-nít. Bi\u1ebft \u0111\u1ed9i 1 có 6 b\u1ea1n, m\u1ed7i b\u1ea1n nh\u1eb7t \u0111\u01b0\u1ee3c 3 qu\u1ea3 bóng. \u0110\u1ed9i 2 có 5 b\u1ea1n, m\u1ed7i b\u1ea1n nh\u1eb7t \u0111\u01b0\u1ee3c 2 qu\u1ea3 bóng. H\u1ecfi c\u1ea3 hai \u0111\u1ed9i nh\u1eb7t \u0111\u01b0\u1ee3c bao nhiêu qu\u1ea3 bóng?<\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/do-vat\/ball3.png\" \/><img class=\"img_dd small\" src=\"\/data\/library\/do-vat\/ball3.png\" \/><img class=\"img_dd small\" src=\"\/data\/library\/do-vat\/ball3.png\" \/><\/div>","options":["15 qu\u1ea3","18 qu\u1ea3","28 qu\u1ea3","30 qu\u1ea3"],"correct":"3","level":"3","hint":"","answer":"<p>\u0110\u1ed9i 1 có 6 b\u1ea1n, m\u1ed7i b\u1ea1n nh\u1eb7t \u0111\u01b0\u1ee3c 3 qu\u1ea3 bóng. \u0110\u1ed9i 1 nh\u1eb7t \u0111\u01b0\u1ee3c s\u1ed1 qu\u1ea3 bóng là:<\/p><p>6 x 3 = 6 + 6 + 6 = 18 (qu\u1ea3)<\/p><p>\u0110\u1ed9i 2 có 5 b\u1ea1n, m\u1ed7i b\u1ea1n nh\u1eb7t \u0111\u01b0\u1ee3c 2 qu\u1ea3 bóng. \u0110\u1ed9i 2 nh\u1eb7t \u0111\u01b0\u1ee3c s\u1ed1 qu\u1ea3 bóng là:<\/p><p>5 x 2 = 5 + 5 = 10 (qu\u1ea3)<\/p><p>C\u1ea3 hai \u0111\u1ed9i nh\u1eb7t \u0111\u01b0\u1ee3c s\u1ed1 qu\u1ea3 bóng là:<\/p><p>18 + 10 = 28 (qu\u1ea3)<\/p><p>\u0110áp s\u1ed1 <span style=\"color:#16a085;\"><strong>28 qu\u1ea3<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"126","test":"3","date":"2021-07-28 06:01:47","option_type":"txt","len":0},{"id":"1895","post_id":"4302","mon_id":"11445","chapter_id":"11557","question":"<p>L\u1edbp 2B có 3 dãy bàn, m\u1ed7i dãy bàn g\u1ed3m có 6 b\u1ed9 bàn gh\u1ebf. M\u1ed7i b\u1ed9 bàn gh\u1ebf ng\u1ed3i \u0111\u01b0\u1ee3c 2 h\u1ecdc sinh. Bi\u1ebft r\u1eb1ng t\u1ea5t c\u1ea3 h\u1ecdc sinh \u0111\u1ec1u có ch\u1ed7 ng\u1ed3i và không có bàn nào ng\u1ed3i 3. Tính s\u1ed1 h\u1ecdc sinh c\u1ee7a l\u1edbp 2B?<\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/hoat-dong\/minh-hoa-2.png\" \/><\/div>","options":["24 h\u1ecdc sinh","26 h\u1ecdc sinh","28 h\u1ecdc sinh","36 h\u1ecdc sinh"],"correct":"4","level":"3","hint":"<p>Tính s\u1ed1 h\u1ecdc sinh c\u1ee7a m\u1ed7i dãy r\u1ed3i tính s\u1ed1 h\u1ecdc sinh c\u1ee7a c\u1ea3 l\u1edbp.<\/p>","answer":"<p>Vì m\u1ed7i dãy bàn g\u1ed3m có 6 b\u1ed9 bàn gh\u1ebf, m\u1ed7i b\u1ed9 bàn gh\u1ebf ng\u1ed3i \u0111\u01b0\u1ee3c 2 h\u1ecdc sinh, nên:<\/p><p>M\u1ed7i dãy bàn có s\u1ed1 h\u1ecdc sinh là:<\/p><p>6 x 2 = 6 + 6 = 12 (h\u1ecdc sinh)<\/p><p>L\u1edbp 2B có 3 dãy bàn nên l\u1edbp 2B có s\u1ed1 h\u1ecdc sinh là:<\/p><p>12 + 12 + 12 = 36 (h\u1ecdc sinh)<\/p><p>V\u1eady \u0111áp án \u0111úng là<span style=\"color:#27ae60;\"><strong> 36<\/strong><\/span><strong><span style=\"color:#16a085;\"> h\u1ecdc sinh<\/span><\/strong><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"126","test":"3","date":"2021-07-28 06:04:28","option_type":"txt","len":1}]}