{"common":{"save":0,"post_id":"5889","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"903","post_id":"5889","mon_id":"1158530","chapter_id":"1158693","question":"<p>Làm tròn s\u1ed1 7929 \u0111\u1ebfn hàng ch\u1ee5c.<\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/con-vat\/3-me-con-soc.png\" \/><\/div>","options":["<strong>A.<\/strong> 7920","<strong>B. <\/strong>7930","<strong>C. <\/strong>7940","<strong>D. <\/strong>7900"],"correct":"2","level":"1","hint":"<p>Khi làm tròn s\u1ed1 \u0111\u1ebfn hàng ch\u1ee5c ta so sánh ch\u1eef s\u1ed1 hàng \u0111\u01a1n v\u1ecb v\u1edbi 5. N\u1ebfu ch\u1eef s\u1ed1 hàng \u0111\u01a1n v\u1ecb bé h\u01a1n 5 thì làm tròn xu\u1ed1ng, còn l\u1ea1i thì làm tròn lên.<\/p>","answer":"<p>Vì s\u1ed1 7929 có ch\u1eef s\u1ed1 hàng \u0111\u01a1n v\u1ecb là <span style=\"color:#3498db;\">9 > 5 nên làm tròn lên<\/span> \u0111\u01b0\u1ee3c s\u1ed1 7930.<\/p><p>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"><strong>B. <\/strong>7930<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-06-09 08:58:39","option_type":"txt","len":0},{"id":"905","post_id":"5889","mon_id":"1158530","chapter_id":"1158693","question":"<p>Làm tròn s\u1ed1 4123 \u0111\u1ebfn hàng ch\u1ee5c.<\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/con-vat\/bach-tuoc.png\" \/><\/div>","options":["<strong>A. <\/strong>4123","<strong>B. <\/strong>4110","<strong>C. <\/strong>4120","<strong>D. <\/strong>4130"],"correct":"3","level":"1","hint":"<p>Khi làm tròn s\u1ed1 \u0111\u1ebfn hàng ch\u1ee5c ta so sánh ch\u1eef s\u1ed1 hàng \u0111\u01a1n v\u1ecb v\u1edbi 5. N\u1ebfu ch\u1eef s\u1ed1 hàng \u0111\u01a1n v\u1ecb bé h\u01a1n 5 thì làm tròn xu\u1ed1ng, còn l\u1ea1i thì làm tròn lên.<\/p>","answer":"<p>Vì s\u1ed1 412<span style=\"color:#2980b9;\">3<\/span> có ch\u1eef s\u1ed1 hàng \u0111\u01a1n v\u1ecb là <span style=\"color:#3498db;\">3 < 5 nên làm tròn xu\u1ed1ng<\/span> \u0111\u01b0\u1ee3c 4120.<\/p><p>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"><strong>C. <\/strong>4120<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-06-09 09:02:05","option_type":"txt","len":0},{"id":"908","post_id":"5889","mon_id":"1158530","chapter_id":"1158693","question":"<p>Làm tròn s\u1ed1 7019 \u0111\u1ebfn hàng tr\u0103m.<\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/con-vat\/bird1.png\" \/><\/div>","options":["<strong>A. <\/strong>7000","<strong>B. <\/strong>7020","<strong>C. <\/strong>7100","<strong>D. <\/strong>7010"],"correct":"1","level":"1","hint":"<p>Khi làm tròn s\u1ed1 \u0111\u1ebfn hàng tr\u0103m ta so sánh ch\u1eef s\u1ed1 hàng ch\u1ee5c v\u1edbi 5. N\u1ebfu ch\u1eef s\u1ed1 hàng ch\u1ee5c bé h\u01a1n 5 thì làm tròn xu\u1ed1ng, còn l\u1ea1i thì làm tròn lên.<\/p>","answer":"<p>Vì s\u1ed1 7019 có ch\u1eef s\u1ed1 hàng ch\u1ee5c là <span style=\"color:#3498db;\">1 < 5 nên làm tròn xu\u1ed1ng<\/span> \u0111\u01b0\u1ee3c 7000.<\/p><p>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"><strong>A. <\/strong>7000<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-06-09 09:04:41","option_type":"txt","len":0}]}