{"common":{"save":0,"post_id":"6809","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1532","post_id":"6809","mon_id":"1159012","chapter_id":"1159023","question":"<p>T&iacute;nh b\u1eb1ng c&aacute;ch thu\u1eadn ti\u1ec7n.<\/p><p>850 + 1930 + 150 + 270 =&nbsp;<\/p>","options":["<strong>A.<\/strong> 2000","<strong>B.<\/strong> 2100","<strong>C.<\/strong> 3000","<strong>D.<\/strong> 3200"],"correct":"4","level":"3","hint":"","answer":"<p>850 + 1930 + 150 + 270<\/p><p>= (850 + 150) + (1930 + 270)<\/p><p>= 1000 + 2200<\/p><p>= 3200&nbsp;<\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong>&nbsp;3200<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-11-23 01:11:19","option_type":"txt","len":0},{"id":"1534","post_id":"6809","mon_id":"1159012","chapter_id":"1159023","question":"<p>N\u1ed1i c&aacute;c ph&eacute;p t&iacute;nh c&oacute; qu\u1ea3 b\u1eb1ng nhau.<\/p>","options":[["35 + 49 + 65 = ","109 + 36 + 91 = ","(56 + 278) + 22 = "],["(109 + 91) + 36","49 + (35 + 65)","56 + (278 + 22)"],["49 + (35 + 65)","(109 + 91) + 36","56 + (278 + 22)"]],"correct":[1,0,2],"level":"3","hint":"","answer":"<p><span style=\"color:#16a085;\"><strong>35 + 49 + 65 =&nbsp;49 + (35 + 65)<\/strong><\/span><\/p><p><span style=\"color:#16a085;\"><strong>109 + 36 + 91 =&nbsp;(109 + 91) + 36<\/strong><\/span><\/p><p><span style=\"color:#16a085;\"><strong>(56 + 278) + 22 =&nbsp;56 + (278 + 22)<\/strong><\/span><\/p>","type":"matching","extra_type":"mat_txt","time":"0","user_id":"131","test":"0","date":"2023-11-23 01:15:55"},{"id":"1535","post_id":"6809","mon_id":"1159012","chapter_id":"1159023","question":"<p>\u0110i\u1ec1n c&aacute;c s\u1ed1 th&iacute;ch h\u1ee3p v&agrave;o ch\u1ed7 tr\u1ed1ng. (l\u1ea7n l\u01b0\u1ee3t t\u1eeb tr&aacute;i sang ph\u1ea3i, t\u1eeb tr&ecirc;n xu\u1ed1ng d\u01b0\u1edbi)<\/p><p>&nbsp; &nbsp;<span style=\"color:#2980b9;\"><strong> &nbsp; &nbsp;785&nbsp; + 102 + 15 + 98<\/strong><\/span><\/p><p><span style=\"color:#2980b9;\">= (&lt;input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/&gt;&nbsp;+ 15) + (102 +&nbsp;&lt;input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/&gt;)<\/span><\/p><p><span style=\"color:#2980b9;\">=&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;800&nbsp; &nbsp; &nbsp;+&nbsp; &nbsp; &nbsp; &nbsp;200<\/span><\/p><p><span style=\"color:#2980b9;\">=&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&lt;input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/&gt;&lt;\/span><\/p>","options":"","correct":["[\"785\",\"98\",\"1000\"]"],"level":"3","hint":"","answer":"<p>&nbsp; &nbsp; 785 + 102 + 15 + 98<\/p><p>= (<span style=\"color:#16a085;\"><strong>785<\/strong><\/span>&nbsp;+ 15) + (102 +&nbsp;<span style=\"color:#16a085;\"><strong>98<\/strong><\/span>)<\/p><p>=&nbsp; &nbsp; &nbsp; &nbsp;800&nbsp; &nbsp; &nbsp;+&nbsp; &nbsp; &nbsp; 200<\/p><p>=&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<span style=\"color:#16a085;\"><strong>1000<\/strong><\/span><\/p><p>C&aacute;c s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u1ea7n l\u01b0\u1ee3t l&agrave;<strong> <span style=\"color:#16a085;\">785 ; 98 ; 1000<\/span><\/strong><\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"0","date":"2023-11-23 01:20:03"}]}