{"common":{"save":0,"post_id":"7640","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1369","post_id":"7640","mon_id":"1159414","chapter_id":"1159426","question":"<p>\u0110i\u1ec1n s\u1ed1 th&iacute;ch h\u1ee3p v&agrave;o ch\u1ed7 ch\u1ea5m: 4 km 5 m = &hellip; km<\/p>","options":["<strong>A.<\/strong> 4,005","<strong>B.<\/strong> 4,05","<strong>C.<\/strong> 4,5","<strong>D.<\/strong> 0,405"],"correct":"1","level":"1","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;4,005<\/span><\/p><p>4 km 5 m = 4 km +&nbsp;<span class=\"math-tex\">$\\dfrac{5}{1000}$<\/span>&nbsp;km =&nbsp;<span class=\"math-tex\">$\\dfrac{4005}{1000}$<\/span>&nbsp;km = <span style=\"color:#16a085;\"><strong>4,005<\/strong><\/span> km<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-09-13 02:30:53","option_type":"txt","len":0},{"id":"1370","post_id":"7640","mon_id":"1159414","chapter_id":"1159426","question":"<p>\u0110i\u1ec1n s\u1ed1 th&iacute;ch h\u1ee3p v&agrave;o ch\u1ed7 ch\u1ea5m: 34 m 2 dm = &lt;input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/&gt; m<\/p>","options":"","correct":["[\"34,2\"]"],"level":"1","hint":"","answer":"<p>34 m 2 dm = 34 m +&nbsp;<span class=\"math-tex\">$\\dfrac{2}{10}$<\/span>&nbsp;m =&nbsp;<span class=\"math-tex\">$\\dfrac{342}{10}$<\/span>&nbsp;m = <span style=\"color:#16a085;\"><strong>34,2<\/strong><\/span> m<\/p><p>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l&agrave; <span style=\"color:#16a085;\"><strong>34,2<\/strong><\/span>.<\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"0","date":"2024-09-13 02:32:28"},{"id":"1372","post_id":"7640","mon_id":"1159414","chapter_id":"1159426","question":"<p>\u0110i\u1ec1n s\u1ed1 th&iacute;ch h\u1ee3p v&agrave;o ch\u1ed7 ch\u1ea5m: 28 km 78 m = &hellip; km<\/p>","options":["<strong>A.<\/strong> 28,78","<strong>B.<\/strong> 28,0078","<strong>C.<\/strong> 78,28","<strong>D.<\/strong> 28,078"],"correct":"4","level":"1","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong>&nbsp;28,078<\/span><\/p><p>28 km 78 m = 28 km +&nbsp;<span class=\"math-tex\">$\\dfrac{78}{1000}$<\/span>&nbsp;km =&nbsp;<span class=\"math-tex\">$\\dfrac{28078}{1000}$<\/span>&nbsp;km = <span style=\"color:#16a085;\"><strong>28,078<\/strong><\/span> km<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-09-13 02:35:11","option_type":"txt","len":0}]}