{"common":{"save":0,"post_id":"7737","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2037","post_id":"7737","mon_id":"1159414","chapter_id":"1159461","question":"<p>\u0110i\u1ec1n s\u1ed1 th&iacute;ch h\u1ee3p v&agrave;o ch\u1ed7 ch\u1ea5m: 2 cm&sup2; = &hellip; dm&sup2;<\/p>","options":["<strong>A.<\/strong> 20","<strong>B.<\/strong> 200","<strong>C.<\/strong> 0,2","<strong>D.<\/strong> 0,02"],"correct":"4","level":"1","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong>&nbsp;0,02<\/span><\/p><p>2 cm&sup2; = <span class=\"math-tex\">$\\dfrac{2}{100}$<\/span> dm&sup2; = 0,02&nbsp;dm&sup2;<\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"131","test":"0","date":"2024-09-29 02:49:26","option_type":"txt","len":0},{"id":"2039","post_id":"7737","mon_id":"1159414","chapter_id":"1159461","question":"<p>N\u1ed1i c\u1ed9t b&ecirc;n tr&aacute;i v\u1edbi b&ecirc;n ph\u1ea3i \u0111\u1ec3 \u0111\u01b0\u1ee3c ph&eacute;p \u0111\u1ed5i \u0111&uacute;ng.<\/p>","options":[["3 m&sup2; = ","3 mm&sup2; =","3 dm&sup2; = ","30 cm&sup2; = "],["300 cm&sup2;","3000 mm&sup2;","300 dm&sup2;","0,03 cm&sup2;"],["300 dm&sup2;","0,03 cm&sup2;","300 cm&sup2;","3000 mm&sup2;"]],"correct":[2,3,0,1],"level":"1","hint":"","answer":"<p><span style=\"color:#2980b9;\">3 m&sup2; =&nbsp;300 dm&sup2;<\/span><\/p><p><span style=\"color:#8e44ad;\">3 mm&sup2; =&nbsp;0,03 cm&sup2;<\/span><\/p><p><span style=\"color:#c0392b;\">3 dm&sup2; =&nbsp;300 cm&sup2;<\/span><\/p><p><span style=\"color:#16a085;\">30 cm&sup2; =&nbsp;3000 mm&sup2;<\/span><\/p>","type":"matching","extra_type":"mat_txt","time":"0","user_id":"131","test":"0","date":"2024-09-29 02:53:58"},{"id":"2041","post_id":"7737","mon_id":"1159414","chapter_id":"1159461","question":"<p>\u0110i\u1ec1n v&agrave;o ch\u1ed7 ch\u1ea5m: 11,02 dm&nbsp;= 1102 &hellip;<\/p>","options":["<strong>A.<\/strong> m","<strong>B.<\/strong> cm","<strong>C.<\/strong> mm","<strong>D.<\/strong> km"],"correct":"3","level":"1","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>C.<\/strong>&nbsp;mm<\/span><\/p><p>11,02 dm&sup2; = 1102 <span style=\"color:#16a085;\">mm<\/span><\/p>","type":"choose","extra_type":"shape1","time":"0","user_id":"131","test":"0","date":"2024-09-29 02:56:32","option_type":"txt","len":0}]}