{"common":{"save":0,"post_id":"6939","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2553","post_id":"6939","mon_id":"1159012","chapter_id":"1159022","question":"<p>S\u1ee3i d&acirc;y m&agrave;u \u0111\u1ecf d&agrave;i&nbsp;<span class=\"math-tex\">$\\dfrac{9}{8}$<\/span>&nbsp;m v&agrave; s\u1ee3i d&acirc;y m&agrave;u xanh d&agrave;i&nbsp;<span class=\"math-tex\">$\\dfrac{5}{4}$<\/span>&nbsp;m. S\u1ee3i d&acirc;y n&agrave;o d&agrave;i h\u01a1n v&agrave; d&agrave;i h\u01a1n bao nhi&ecirc;u m&eacute;t?<\/p>","options":["<strong>A.<\/strong> S\u1ee3i d&acirc;y m&agrave;u \u0111\u1ecf d&agrave;i h\u01a1n v&agrave; d&agrave;i h\u01a1n <span class=\"math-tex\">$\\dfrac{1}{8}$<\/span> m.","<strong>B.<\/strong> S\u1ee3i d&acirc;y m&agrave;u xanh d&agrave;i h\u01a1n v&agrave; d&agrave;i h\u01a1n <span class=\"math-tex\">$\\dfrac{1}{8}$<\/span> m.","<strong>C.<\/strong> S\u1ee3i d&acirc;y m&agrave;u xanh d&agrave;i h\u01a1n v&agrave; d&agrave;i h\u01a1n <span class=\"math-tex\">$\\dfrac{1}{4}$<\/span> m.","<strong>D.<\/strong> S\u1ee3i d&acirc;y m&agrave;u \u0111\u1ecf d&agrave;i h\u01a1n v&agrave; d&agrave;i h\u01a1n <span class=\"math-tex\">$\\dfrac{1}{4}$<\/span> m."],"correct":"2","level":"3","hint":"","answer":"<p>Ta c&oacute;&nbsp;<span class=\"math-tex\">$\\dfrac{5}{4}=\\dfrac{10}{8}$<\/span>&nbsp;m&agrave;&nbsp;<span class=\"math-tex\">$\\dfrac{9}{8}<\\dfrac{10}{8}$<\/span>&nbsp; n&ecirc;n&nbsp;<span class=\"math-tex\">$\\dfrac{9}{8}<\\dfrac{5}{4}$<\/span>&nbsp;.<\/p><p>S\u1ee3i d&acirc;y m&agrave;u xanh d&agrave;i h\u01a1n v&agrave; d&agrave;i h\u01a1n s\u1ed1 m&eacute;t l&agrave;<\/p><p><span class=\"math-tex\">$\\dfrac{5}{4}-\\dfrac{9}{8}=\\dfrac{10}{8}-\\dfrac{9}{8}=\\dfrac{10-9}{8}=\\dfrac{1}{8}$<\/span>&nbsp;m.<\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong> S\u1ee3i d&acirc;y xanh d&agrave;i h\u01a1n v&agrave; d&agrave;i h\u01a1n&nbsp;<span class=\"math-tex\">$\\dfrac{1}{8}$<\/span>&nbsp;m.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-08 04:07:29","option_type":"math","len":0},{"id":"2554","post_id":"6939","mon_id":"1159012","chapter_id":"1159022","question":"<p><span class=\"math-tex\">$3-\\dfrac{1}{3}-\\dfrac{5}{6}=$<\/span>&nbsp;&lt;input class=\"_tit_hoi\" disabled=\"disabled\" type=\"text\"\/&gt;&lt;\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{11}{6}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{13}{6}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{11}{3}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{13}{3}$<\/span>"],"correct":"1","level":"3","hint":"","answer":"<p><span class=\"math-tex\">$3-\\dfrac{1}{3}-\\dfrac{5}{6}=\\dfrac{18}{6}-\\dfrac{2}{6}-\\dfrac{5}{6}=\\dfrac{18-2-5}{6}=\\dfrac{11}{6}$<\/span><\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{11}{6}$<\/span>.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-08 04:10:44","option_type":"math","len":0},{"id":"2556","post_id":"6939","mon_id":"1159012","chapter_id":"1159022","question":"<p>Qu\u1ea3 d\u01b0a h\u1ea5u n\u1eb7ng&nbsp;<span class=\"math-tex\">$\\dfrac{7}{3}$<\/span>&nbsp;kg, qu\u1ea3 b\u01b0\u1edfi n\u1eb7ng&nbsp;<span class=\"math-tex\">$\\dfrac{3}{2}$<\/span>&nbsp;kg. H\u1ecfi qu\u1ea3 n&agrave;o n\u1eb7ng h\u01a1n v&agrave; n\u1eb7ng h\u01a1n bao nhi&ecirc;u ki-l&ocirc;-gam?<\/p>","options":["<strong>A.<\/strong> Qu\u1ea3 d\u01b0a h\u1ea5u n\u1eb7ng h\u01a1n v&agrave; n\u1eb7ng h\u01a1n <span class=\"math-tex\">$\\dfrac{5}{3}$<\/span> kg.","<strong>B.<\/strong> Qu\u1ea3 b\u01b0\u1edfi n\u1eb7ng h\u01a1n v&agrave; n\u1eb7ng h\u01a1n <span class=\"math-tex\">$\\dfrac{5}{3}$<\/span> kg.","<strong>C.<\/strong> Qu\u1ea3 b\u01b0\u1edfi n\u1eb7ng h\u01a1n v&agrave; n\u1eb7ng h\u01a1n <span class=\"math-tex\">$\\dfrac{5}{6}$<\/span> kg.","<strong>D.<\/strong> Qu\u1ea3 d\u01b0a h\u1ea5u n\u1eb7ng h\u01a1n v&agrave; n\u1eb7ng h\u01a1n <span class=\"math-tex\">$\\dfrac{5}{6}$<\/span> kg."],"correct":"4","level":"3","hint":"","answer":"<p>Ta c&oacute;&nbsp;<span class=\"math-tex\">$\\dfrac{7}{3}=\\dfrac{14}{6}$<\/span>&nbsp;;&nbsp;<span class=\"math-tex\">$\\dfrac{3}{2}=\\dfrac{9}{6}$<\/span>&nbsp;m&agrave;&nbsp;<span class=\"math-tex\">$\\dfrac{14}{6}>\\dfrac{9}{6}$<\/span>&nbsp;n&ecirc;n&nbsp;<span class=\"math-tex\">$\\dfrac{7}{3}>\\dfrac{3}{2}$<\/span>&nbsp;.<\/p><p>V\u1eady qu\u1ea3 d\u01b0a h\u1ea5u n\u1eb7ng h\u01a1n v&agrave; n\u1eb7ng h\u01a1n s\u1ed1 ki-l&ocirc;-gam l&agrave;<\/p><p><span class=\"math-tex\">$\\dfrac{7}{3}-\\dfrac{3}{2}=\\dfrac{14}{6}-\\dfrac{9}{6}=\\dfrac{14-9}{6}=\\dfrac{5}{6}$<\/span>&nbsp;kg.<\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong> Qu\u1ea3 d\u01b0a h\u1ea5u n\u1eb7ng h\u01a1n v&agrave; n\u1eb7ng h\u01a1n&nbsp;<span class=\"math-tex\">$\\dfrac{5}{6}$<\/span>&nbsp;kg.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-08 04:18:58","option_type":"math","len":0}]}