{"common":{"save":0,"post_id":"6931","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2515","post_id":"6931","mon_id":"1159012","chapter_id":"1159022","question":"<p>T&iacute;nh b\u1eb1ng c&aacute;ch thu\u1eadn ti\u1ec7n.<\/p><p><span class=\"math-tex\">$\\dfrac{485}{1000}+\\dfrac{37}{1000}+\\dfrac{15}{1000}$<\/span><\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{637}{1000}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{537}{1000}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{437}{1000}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{527}{1000}$<\/span>"],"correct":"2","level":"2","hint":"","answer":"<p><span class=\"math-tex\">$\\dfrac{485}{1000}+\\dfrac{37}{1000}+\\dfrac{15}{1000}$<\/span><\/p><p>=&nbsp;<span class=\"math-tex\">$\\bigg(\\dfrac{485}{1000}+\\dfrac{15}{1000}\\bigg)+\\dfrac{37}{1000}$<\/span><\/p><p>=&nbsp;<span class=\"math-tex\">$\\dfrac{500}{1000}+\\dfrac{37}{1000}$<\/span><\/p><p>=&nbsp;<span class=\"math-tex\">$\\dfrac{537}{1000}$<\/span><\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{537}{1000}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-07 04:43:50","option_type":"math","len":0},{"id":"2517","post_id":"6931","mon_id":"1159012","chapter_id":"1159022","question":"<p>R&uacute;t g\u1ecdn r\u1ed3i t&iacute;nh&nbsp;<span class=\"math-tex\">$\\dfrac{6}{24}+\\dfrac{9}{4}$<\/span>.<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{7}{2}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{5}{4}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{5}{2}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{15}{2}$<\/span>"],"correct":"3","level":"2","hint":"","answer":"<p><span class=\"math-tex\">$\\dfrac{6}{24}+\\dfrac{9}{4}$<\/span><\/p><p>=&nbsp;<span class=\"math-tex\">$\\dfrac{1}{4}+\\dfrac{9}{4}$<\/span><\/p><p>=&nbsp;<span class=\"math-tex\">$\\dfrac{10}{4}$<\/span><\/p><p>=&nbsp;<span class=\"math-tex\">$\\dfrac{5}{2}$<\/span><\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>C.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{5}{2}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-07 04:47:02","option_type":"math","len":0},{"id":"2518","post_id":"6931","mon_id":"1159012","chapter_id":"1159022","question":"<p>R&uacute;t g\u1ecdn r\u1ed3i t&iacute;nh&nbsp;<span class=\"math-tex\">$\\dfrac{30}{36}-\\dfrac{1}{6}$<\/span>.<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{2}{3}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{3}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{5}{6}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{4}{3}$<\/span>"],"correct":"1","level":"2","hint":"","answer":"<p><span class=\"math-tex\">$\\dfrac{30}{36}-\\dfrac{1}{6}$<\/span><\/p><p>=&nbsp;<span class=\"math-tex\">$\\dfrac{5}{6}-\\dfrac{1}{6}$<\/span><\/p><p>=&nbsp;<span class=\"math-tex\">$\\dfrac{4}{6}$<\/span><\/p><p>=&nbsp;<span class=\"math-tex\">$\\dfrac{2}{3}$<\/span><\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{2}{3}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-07 04:49:32","option_type":"math","len":0}]}