{"common":{"save":0,"post_id":"4793","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8139","post_id":"4793","mon_id":"1158113","chapter_id":"1158128","question":"<p>B\u1ecf d\u1ea5u ngo\u1eb7c và tính t\u1ed5ng sau<\/p><p>-150 + (-30) - 150 - (-30)<\/p>","options":["-360","-300","300"],"correct":"2","level":"1","hint":"<p>Quy t\u1eafc d\u1ea5u ngo\u1eb7c: Khi b\u1ecf d\u1ea5u ngo\u1eb7c ta ph\u1ea3i<\/p><p>+ Gi\u1eef nguyên d\u1ea5u c\u1ee7a các s\u1ed1 trong ngo\u1eb7c n\u1ebfu tr\u01b0\u1edbc ngo\u1eb7c là d\u1ea5u c\u1ed9ng<\/p><p>+ \u0110\u1ed5i d\u1ea5u các s\u1ed1 trong ngo\u1eb7c n\u1ebfu tr\u01b0\u1edbc ngo\u1eb7c là d\u1ea5u tr\u1eeb<\/p>","answer":"<p>-150 + (-30) - 150 - (-30)<\/p><p>= -150 -30 -150 + 30<\/p><p>= (-150 - 150) + (-30 + 30)<\/p><p>= -300 + 0<\/p><p>= <strong>-300<\/strong><\/p><p>\u0110áp án \u0111úng là<b> <span style=\"color:#16a085;\">-300<\/span><\/b><\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"132","test":"1","date":"2021-10-03 11:43:20","option_type":"txt","len":0},{"id":"8141","post_id":"4793","mon_id":"1158113","chapter_id":"1158128","question":"<p>B\u1ecf d\u1ea5u ngo\u1eb7c và tính t\u1ed5ng sau<\/p><p>27 - (-23) + (-50)<\/p>","options":["100","-100","0"],"correct":"3","level":"1","hint":"<p>Quy t\u1eafc d\u1ea5u ngo\u1eb7c: Khi b\u1ecf d\u1ea5u ngo\u1eb7c ta ph\u1ea3i<\/p><p>+ Gi\u1eef nguyên d\u1ea5u c\u1ee7a các s\u1ed1 trong ngo\u1eb7c n\u1ebfu tr\u01b0\u1edbc ngo\u1eb7c là d\u1ea5u c\u1ed9ng<\/p><p>+ \u0110\u1ed5i d\u1ea5u các s\u1ed1 trong ngo\u1eb7c n\u1ebfu tr\u01b0\u1edbc ngo\u1eb7c là d\u1ea5u tr\u1eeb<\/p>","answer":"<p>27 - (-23) + (-50)<\/p><p>= 27 + 23 - 50<\/p><p>= 50 - 50 <\/p><p>= 0<\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>0<\/strong><\/span>.<\/p>","type":"choose","extra_type":"star","time":"0","user_id":"132","test":"1","date":"2021-10-03 11:45:26","option_type":"txt","len":0},{"id":"8142","post_id":"4793","mon_id":"1158113","chapter_id":"1158128","question":"<p>B\u1ecf d\u1ea5u ngo\u1eb7c và tính giá tr\u1ecb bi\u1ec3u th\u1ee9c sau<\/p><p>A = (40 - 1000) - (-60 - 1000)<\/p><p><strong>\u0110áp s\u1ed1: A =<\/strong> <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/><\/p>","options":"","correct":["[\"100\"]"],"level":"1","hint":"<p>Khi b\u1ecf ngo\u1eb7c ta ph\u1ea3i <strong>gi\u1eef nguyên d\u1ea5u<\/strong> các s\u1ed1 trong ngo\u1eb7c n\u1ebfu tr\u01b0\u1edbc ngo\u1eb7c là <strong>d\u1ea5u c\u1ed9ng<\/strong> và <strong>\u0111\u1ed5i d\u1ea5u<\/strong> các s\u1ed1 trong ngo\u1eb7c n\u1ebfu tr\u01b0\u1edbc ngo\u1eb7c là <strong>d\u1ea5u tr\u1eeb.<\/strong><\/p>","answer":"<p>A = (40 - 1000) - (-60 - 1000)<\/p><p>A = 40 - 1000 + 60 + 1000<\/p><p>A = (40 + 60) + (-1000 + 1000)<\/p><p>A = 100 + 0<\/p><p><strong>A = 100<\/strong><\/p><p>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n là <span style=\"color:#16a085;\"><strong>100<\/strong><\/span>.<\/p>","type":"blank","extra_type":"","time":"0","user_id":"132","test":"1","date":"2021-10-03 11:48:34"}]}