{"common":{"save":0,"post_id":"4768","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"7887","post_id":"4768","mon_id":"1158113","chapter_id":"1158128","question":"<p>Tính (-23) + (-39) = ?<\/p>","options":["-62","62","16"],"correct":"1","level":"1","hint":"<p>Mu\u1ed1n c\u1ed9ng hai s\u1ed1 nguyên âm, ta c\u1ed9ng ph\u1ea7n s\u1ed1 t\u1ef1 nhiên c\u1ee7a chúng v\u1edbi nhau r\u1ed3i \u0111\u1eb7t d\u1ea5u tr\u1eeb tr\u01b0\u1edbc k\u1ebft qu\u1ea3.<\/p>","answer":"<p>(-23) + (-39) = - (23 + 39) = -62<\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>-62<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"1","date":"2021-09-30 13:45:03","option_type":"number","len":0},{"id":"7888","post_id":"4768","mon_id":"1158113","chapter_id":"1158128","question":"<p>Tính (-134) + (-1990) = ?<\/p>","options":["-2421","2124","-2124"],"correct":"3","level":"1","hint":"<p>Mu\u1ed1n c\u1ed9ng hai s\u1ed1 nguyên âm, ta c\u1ed9ng ph\u1ea7n s\u1ed1 t\u1ef1 nhiên c\u1ee7a chúng v\u1edbi nhau r\u1ed3i \u0111\u1eb7t d\u1ea5u tr\u1eeb tr\u01b0\u1edbc k\u1ebft qu\u1ea3.<\/p>","answer":"<p>(-134) + (-1990) = - (134 + 1990) = -2124<\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>-2124<\/strong><\/span>.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"1","date":"2021-09-30 13:47:13","option_type":"number","len":0},{"id":"7890","post_id":"4768","mon_id":"1158113","chapter_id":"1158128","question":"<p>K\u1ebft qu\u1ea3 c\u1ee7a phép tính sau là m\u1ed9t s\u1ed1 nguyên âm hay s\u1ed1 nguyên d\u01b0\u01a1ng?<\/p><p>(-1990) + 3400<\/p>","options":["S\u1ed1 nguyên âm","S\u1ed1 nguyên d\u01b0\u01a1ng"],"correct":"2","level":"1","hint":"<p>Mu\u1ed1n c\u1ed9ng hai s\u1ed1 nguyên khác d\u1ea5u ta tìm hi\u1ec7u hai ph\u1ea7n s\u1ed1 t\u1ef1 nhiên c\u1ee7a chúng (s\u1ed1 l\u1edbn tr\u1eeb s\u1ed1 nh\u1ecf) r\u1ed3i \u0111\u1eb7t tr\u01b0\u1edbc hi\u1ec7u v\u1eeba tìm \u0111\u01b0\u1ee3c d\u1ea5u c\u1ee7a s\u1ed1 có ph\u1ea7n s\u1ed1 t\u1ef1 nhiên l\u1edbn h\u01a1n.<\/p>","answer":"<p>(-1990) + 3400 = 3400 - 1990 = 1410 <\/p><p>1410 là m\u1ed9t s\u1ed1 nguyên d\u01b0\u01a1ng.<\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>S\u1ed1 nguyên d\u01b0\u01a1ng<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"1","date":"2021-09-30 13:50:35","option_type":"txt","len":2}]}
