{"common":{"save":0,"post_id":"6748","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"803","post_id":"6748","mon_id":"1159012","chapter_id":"1159016","question":"<p>Tính giá tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c 150 x m – n v\u1edbi m = 20 và n = 700<\/p>","options":["<strong>A.<\/strong> 2 300","<strong>B.<\/strong> 1 300","<strong>C.<\/strong> 2 500","<strong>D.<\/strong> 2 400"],"correct":"1","level":"2","hint":"","answer":"<p>V\u1edbi m = 20 và n = 700 thì<\/p><p>150 x m – n<\/p><p>= 150 x 20 – 700<\/p><p>= 3 000 – 700<\/p><p>= 2 300<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> 2 300<\/span><\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"131","test":"0","date":"2023-10-08 04:50:38","option_type":"txt","len":0},{"id":"805","post_id":"6748","mon_id":"1159012","chapter_id":"1159016","question":"<p>Tính giá tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c 7 000 – 30 x a v\u1edbi a = 40.<\/p>","options":["<strong>A.<\/strong> 5 600","<strong>B.<\/strong> 4 800","<strong>C.<\/strong> 8 500","<strong>D.<\/strong> 5 800"],"correct":"4","level":"2","hint":"","answer":"<p>V\u1edbi a = 40 thì <\/p><p>7 000 – 30 x a<\/p><p>= 7 000 – 30 x 40<\/p><p>= 7 000 – 1 200<\/p><p>= 5 800<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>D.<\/strong> 5 800<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-10-08 04:52:45","option_type":"txt","len":0},{"id":"806","post_id":"6748","mon_id":"1159012","chapter_id":"1159016","question":"<p>Tính giá tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c 310 + b x 5 v\u1edbi b = 90.<\/p>","options":["<strong>A.<\/strong> 720","<strong>B.<\/strong> 750","<strong>C.<\/strong> 760","<strong>D.<\/strong> 780"],"correct":"3","level":"2","hint":"","answer":"<p>V\u1edbi b = 90 thì<\/p><p>310 + b x 5 <\/p><p>= 310 + 90 x 5<\/p><p>= 310 + 450<\/p><p>= 760<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>C.<\/strong> 760<\/span><\/p>","type":"choose","extra_type":"sheep","time":"0","user_id":"131","test":"0","date":"2023-10-08 04:54:45","option_type":"txt","len":0}]}
