{"common":{"save":0,"post_id":"4463","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6071","post_id":"4463","mon_id":"1158113","chapter_id":"1158128","question":"<p>Tìm k\u1ebft qu\u1ea3 c\u1ee7a phép c\u1ed9ng d\u01b0\u1edbi \u0111ây<\/p><p><span style=\"color:#2980b9;\"><strong>(-12) + (-345) + (-23) = ?<\/strong><\/span><\/p>","options":["380","-380","-310","357"],"correct":"2","level":"2","hint":"<p>Mu\u1ed1n c\u1ed9ng các 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 t\u1ed5ng v\u1eeba tìm \u0111\u01b0\u1ee3c.<\/p>","answer":"<p>Th\u1ef1c hi\u1ec7n phép tính:<\/p><p> (-12) + (-345) + (-23)<\/p><p> = - (12 + 345 + 23)<\/p><p> = - 380.<\/p><p>V\u1eady \u0111áp án là <strong><span style=\"color:#16a085;\">-380<\/span><\/strong>.<\/p>","type":"choose","extra_type":"flower","time":"0","user_id":"132","test":"3","date":"2021-08-20 13:12:22","option_type":"txt","len":0},{"id":"6073","post_id":"4463","mon_id":"1158113","chapter_id":"1158128","question":"<p>Tìm k\u1ebft qu\u1ea3 c\u1ee7a phép tính d\u01b0\u1edbi \u0111ây<\/p><p><span style=\"color:#2980b9;\"><strong>45 -13 + (-100) = ?<\/strong><\/span><\/p>","options":["132","68","-68","100"],"correct":"3","level":"2","hint":"<p>Th\u1ef1c hi\u1ec7n phép tính theo th\u1ee9 t\u1ef1 t\u1eeb trái sang ph\u1ea3i.<\/p>","answer":"<p>Th\u1ef1c hi\u1ec7n phép tính<\/p><p>45 - 13 + (-100) = 32 + (-100) <\/p><p> = - (100 - 32)<\/p><p> = -68<\/p><p>V\u1eady \u0111áp án \u0111úng là<strong><span style=\"color:#16a085;\"> -68<\/span><\/strong>.<\/p>","type":"choose","extra_type":"star","time":"0","user_id":"132","test":"3","date":"2021-08-20 13:28:00","option_type":"txt","len":0},{"id":"6075","post_id":"4463","mon_id":"1158113","chapter_id":"1158128","question":"<p>N\u1ed1i hai phép tính có k\u1ebft qu\u1ea3 b\u1eb1ng nhau<\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/hoa-qua\/cherry.png\" \/><\/div>","options":[["(-84) - 100","3 + 4 + (-97)","(-1000) + 210 + 790"],["(-40) + (-50)","365 + (-365)","100 - 284"],["100 - 284","(-40) + (-50)","365 + (-365)"]],"correct":[1,2,0],"level":"2","hint":"<p>Th\u1ef1c hi\u1ec7n phép tính trên r\u1ed3i n\u1ed1i các phép tính có k\u1ebft qu\u1ea3 b\u1eb1ng nhau.<\/p>","answer":"<p>Th\u1ef1c hi\u1ec7n các phép tính \u0111\u1ec3 tìm các c\u1eb7p phép tính có k\u1ebft qu\u1ea3 b\u1eb1ng nhau<\/p><p><span style=\"color:#8e44ad;\">(-84) - 100 = (-84) + (-100) = - (84 + 100)= <strong>-184<\/strong><\/span><\/p><p><span style=\"color:#8e44ad;\">3 + 4 + (-97) = 7 + (-97) = <strong>-90<\/strong><\/span><\/p><p><span style=\"color:#8e44ad;\">(-1000) + 210 + 790 = (-1000) + 1000 = <strong>0<\/strong><\/span><\/p><p><span style=\"color:#2980b9;\">100 - 284 = 100 + (-284) = -(284 -100) =<strong> <\/strong><strong>-184<\/strong><\/span><\/p><p><span style=\"color:#2980b9;\">(-40) + (-50) = -<strong>90<\/strong><\/span><\/p><p><span style=\"color:#2980b9;\">365 + (-365) =<strong> 0<\/strong><\/span><\/p><p>V\u1eady \u0111áp án \u0111úng là:<\/p><p><strong><span style=\"color:#16a085;\">(-84) - 100 = 100 - 284<\/span><\/strong><\/p><p><strong><span style=\"color:#16a085;\">3 + 4 + (-97) = (-40) + (-50)<\/span><\/strong><\/p><p><strong><span style=\"color:#16a085;\">(-1000) + 210 + 790 = 365 + (-365)<\/span><\/strong><\/p>","type":"matching","extra_type":"mat_txt","time":"0","user_id":"132","test":"3","date":"2021-08-20 13:39:12"}]}