{"common":{"save":0,"post_id":"6856","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1861","post_id":"6856","mon_id":"1159012","chapter_id":"1159015","question":"<p>N\u1ed1i c&aacute;c ph&eacute;p t&iacute;nh c&oacute; k\u1ebft qu\u1ea3 b\u1eb1ng nhau.<\/p>","options":[["4890 x 5 = ","4980 x 5 = ","4098 x 6 = "],["6 x 4098","5 x 4890","5 x 4980"],["5 x 4890","5 x 4980","6 x 4098"]],"correct":[2,0,1],"level":"2","hint":"<p>&Aacute;p d\u1ee5ng t&iacute;nh ch\u1ea5t giao ho&aacute;n v&agrave; k\u1ebft h\u1ee3p c\u1ee7a ph&eacute;p nh&acirc;n.<\/p>","answer":"<p><span style=\"color:#16a085;\">4890 x 5 = 5 x 4890<\/span><\/p><p><span style=\"color:#16a085;\">4980 x 5 = 5 x 4980<\/span><\/p><p><span style=\"color:#16a085;\">4098 x 6 = 6 x 4098<\/span><\/p>","type":"matching","extra_type":"mat_txt","time":"0","user_id":"131","test":"0","date":"2023-12-10 03:37:02"},{"id":"1876","post_id":"6856","mon_id":"1159012","chapter_id":"1159015","question":"<p>Ch\u1ecdn ph&eacute;p t&iacute;nh c&oacute; k\u1ebft qu\u1ea3 b\u1eb1ng v\u1edbi k\u1ebft qu\u1ea3 c\u1ee7a ph&eacute;p t&iacute;nh sau<\/p><p><span style=\"color:#8e44ad;\"><strong>&nbsp;(11 x 4)&nbsp; x&nbsp; 2<\/strong><\/span><\/p>","options":["<strong>A.<\/strong> 34 x 2","<strong>B.<\/strong> 11 x 9","<strong>C.<\/strong> 4 x 22","<strong>D.<\/strong> 11 x (3 x 2)"],"correct":"3","level":"2","hint":"<p>T&iacute;nh&nbsp;<span style=\"color:#8e44ad;\"><strong>&nbsp;(11 x 4)&nbsp; x&nbsp; 2<\/strong><\/span> tr\u01b0\u1edbc.<\/p>","answer":"<p>&nbsp;(11 x 4) x 2<\/p><p>= (11 x 2) x 4<\/p><p>= 22 x 4<\/p><p>So s&aacute;nh <strong>22 x 4&nbsp; =&nbsp; 4 x 22<\/strong><\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>C.<\/strong>&nbsp;4 x 22<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-12-10 04:10:16","option_type":"txt","len":1},{"id":"1877","post_id":"6856","mon_id":"1159012","chapter_id":"1159015","question":"<p>\u0110i\u1ec1n c&aacute;c s\u1ed1 th&iacute;ch h\u1ee3p v&agrave;o ch\u1ed7 tr\u1ed1ng (t\u1eeb tr&aacute;i sang ph\u1ea3i)<\/p><p><span style=\"color:#8e44ad;\"><strong>(3 x 9) x 6&nbsp; &nbsp;=&nbsp; &nbsp;&lt;input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/&gt;&nbsp;x 6&nbsp; &nbsp;=&nbsp; &nbsp;3 x (&lt;input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/&gt;&nbsp;x 9)<\/strong><\/span><\/p>","options":"","correct":["[\"27\",\"6\"]"],"level":"2","hint":"","answer":"<p>(3 x 9) x 6&nbsp; &nbsp;=&nbsp; &nbsp;<span style=\"color:#16a085;\"><strong>27 <\/strong><\/span>x 6&nbsp; &nbsp;=&nbsp; &nbsp;3 x (<span style=\"color:#16a085;\"><strong>6<\/strong><\/span>&nbsp;x 9)<\/p><p>C&aacute;c s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u1ea7n l\u01b0\u1ee3t l&agrave;&nbsp;&nbsp;<span style=\"color:#16a085;\"><strong>27&nbsp; ;&nbsp; 6<\/strong><\/span><\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"0","date":"2023-12-10 04:12:21"}]}