{"common":{"save":0,"post_id":"7696","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1739","post_id":"7696","mon_id":"1159414","chapter_id":"1159449","question":"<p>\u0110i\u1ec1n v&agrave;o ch\u1ed7 ch\u1ea5m: <span style=\"color:#d35400;\"><strong>89,21 x 0,1 = &hellip;<\/strong><\/span><\/p>","options":["<strong>A.<\/strong> 8,921","<strong>B.<\/strong> 892,1","<strong>C.<\/strong> 8,93","<strong>D.<\/strong> 0,8921"],"correct":"1","level":"1","hint":"<p>Mu\u1ed1n nh&acirc;n m\u1ed9t s\u1ed1 th\u1eadp ph&acirc;n v\u1edbi 0,1 ta chuy\u1ec3n d\u1ea5u ph\u1ea9y c\u1ee7a s\u1ed1 \u0111&oacute;&nbsp;l\u1ea7n l\u01b0\u1ee3t sang b&ecirc;n tr&aacute;i m\u1ed9t ch\u1eef s\u1ed1.<\/p>","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong> 8,921<\/span><\/p><p>89,21 x 0,1 = 8,921<\/p>","type":"choose","extra_type":"shape1","time":"0","user_id":"131","test":"0","date":"2024-09-22 01:54:43","option_type":"txt","len":0},{"id":"1741","post_id":"7696","mon_id":"1159414","chapter_id":"1159449","question":"<p>\u0110i\u1ec1n v&agrave;o ch\u1ed7 ch\u1ea5m: <span style=\"color:#8e44ad;\"><strong>3,82 x 0,001 = &hellip;<\/strong><\/span><\/p>","options":["<strong>A.<\/strong> 38,2","<strong>B.<\/strong> 0,382","<strong>C.<\/strong> 0,0382","<strong>D.<\/strong> 0,00382"],"correct":"4","level":"1","hint":"<p>Mu\u1ed1n nh&acirc;n m\u1ed9t s\u1ed1 th\u1eadp ph&acirc;n v\u1edbi 0,001 ta chuy\u1ec3n d\u1ea5u ph\u1ea9y c\u1ee7a s\u1ed1&nbsp;\u0111&oacute; l\u1ea7n l\u01b0\u1ee3t sang b&ecirc;n tr&aacute;i ba ch\u1eef s\u1ed1.<\/p>","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong>&nbsp;0,00382<\/span><\/p><p>3,82 x 0,001 = 0,00382<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-09-22 01:56:21","option_type":"txt","len":0},{"id":"1744","post_id":"7696","mon_id":"1159414","chapter_id":"1159449","question":"<p>\u0110i\u1ec1n v&agrave;o ch\u1ed7 ch\u1ea5m: <span style=\"color:#e67e22;\"><strong>713, 1 : 100 = ...<\/strong><\/span><\/p>","options":["<strong>A.<\/strong> 7,13","<strong>B.<\/strong> 7,131","<strong>C.<\/strong> 7131","<strong>D.<\/strong> 71,31"],"correct":"2","level":"1","hint":"<p>Mu\u1ed1n chia m\u1ed9t s\u1ed1 th\u1eadp ph&acirc;n v\u1edbi 100 ta chuy\u1ec3n d\u1ea5u ph\u1ea9y c\u1ee7a s\u1ed1 \u0111&oacute;&nbsp;l\u1ea7n l\u01b0\u1ee3t sang b&ecirc;n tr&aacute;i hai ch\u1eef s\u1ed1.<\/p>","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong>&nbsp;7,131<\/span><\/p><p>713, 1 : 100 = 7,131<\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"131","test":"0","date":"2024-09-22 01:58:22","option_type":"txt","len":0}]}