Cộng hai số nguyên cùng dấu-level3

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{"common":{"save":0,"post_id":"764","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"981","post_id":"764","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":10,"ques":" (-38) + (-192) ?<\/span> (-47) + (-165)","select":[" >"," < "," = "],"hint":" T\u00ednh k\u1ebft qu\u1ea3 c\u1ee7a t\u1eebng v\u1ebf r\u1ed3i so s\u00e1nh","explain":" H\u01b0\u1edbng d\u1eabn:<\/span><br\/>T\u00ednh k\u1ebft qu\u1ea3 c\u1ee7a t\u1eebng v\u1ebf r\u1ed3i so s\u00e1nh<br\/> L\u01b0u \u00fd: <\/i><\/b> Mu\u1ed1n c\u1ed9ng hai s\u1ed1 nguy\u00ean \u00e2m, ta c\u1ed9ng hai gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a ch\u00fang r\u1ed3i \u0111\u1eb7t d\u1ea5u ( - ) tr\u01b0\u1edbc k\u1ebft qu\u1ea3<\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span><br\/>$ \\underbrace{(-38) + (-192)}_{-230}$ ?<\/span> $ \\underbrace{(-47) + (-165)}_{-212}$<br\/>M\u00e0 -230 < -212 <br\/>N\u00ean (-38) + (-192) < (-47) + (-165)<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <<\/span><\/span> <br\/> ","column":3}]}]},"correct":"","level":"3","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:48"},{"id":"982","post_id":"764","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":10,"ques":" 39412 + |-3851| = ?<\/span>","select":["A. 35561","B. -35561 ","C. 43263 ","D. -43263"],"hint":"","explain":" H\u01b0\u1edbng d\u1eabn:<\/span><br\/>B\u01b0\u1edbc 1: B\u1ecf d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a |-3 851|<br\/>B\u01b0\u1edbc 2: Th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh<br\/>B\u01b0\u1edbc 3: L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang<\/span> <br\/><br\/> B\u00e0i gi\u1ea3i:<\/span><br\/>$\\begin{align*}39412 + |-3851| &= 39412 + 3851 \\\\&= 43263\\end{align*}$<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: C. 43263<\/span><\/span> <br\/>","column":2}]}]},"correct":"","level":"3","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:48"},{"id":"983","post_id":"764","mon_id":"0","chapter_id":"0","question":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","options":{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["-4100"," -4100","-4100 "," -4100 ","- 4100"," - 4100","-4100 "]]],"list":[{"point":10,"width":70,"type_input":"","ques":"<center><img src='img\/2.jpg' \/><\/center>T\u1ed5ng c\u1ee7a -2523 v\u00e0 -1577 l\u00e0: _input_","hint":"","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Mu\u1ed1n c\u1ed9ng hai s\u1ed1 nguy\u00ean \u00e2m, ta c\u1ed9ng hai gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a ch\u00fang r\u1ed3i \u0111\u1eb7t d\u1ea5u ( - ) tr\u01b0\u1edbc k\u1ebft qu\u1ea3<\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span><br\/>T\u1ed5ng c\u1ee7a -2523 v\u00e0 -1577 l\u00e0:<br\/>$\\begin{align*}(-2523) + (-1577) &= - (2523 + 1577) \\\\&= -4100\\end{align*}$<br\/>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: -4100<\/span><\/span><\/span> <br\/> "}]}]},"correct":"","level":"3","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:48"}]}