{"common":{"save":0,"post_id":"6807","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1500","post_id":"6807","mon_id":"1159012","chapter_id":"1159023","question":"<p>Ch\u1ecdn s\u1ed1 th&iacute;ch h\u1ee3p \u0111i\u1ec1n v&agrave;o &ocirc; tr\u1ed1ng.<\/p><p>4556 + 812 =&nbsp;&lt;input class=\"_tit_hoi\" disabled=\"disabled\" type=\"text\"\/&gt;&nbsp;+ 4556<\/p>","options":["<strong>A.<\/strong> 4556","<strong>B.<\/strong> 812","<strong>C.<\/strong> 821","<strong>D.<\/strong> 5368"],"correct":"2","level":"1","hint":"<p>Khi \u0111\u1ed5i ch\u1ed7 c&aacute;c s\u1ed1 h\u1ea1ng trong m\u1ed9t t\u1ed5ng th&igrave; t\u1ed5ng kh&ocirc;ng thay \u0111\u1ed5i.<\/p>","answer":"<p>4556 + 812 =&nbsp;<span style=\"color:#16a085;\"><strong>812<\/strong><\/span> + 4556<\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong>&nbsp;812<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-11-22 02:30:27","option_type":"txt","len":0},{"id":"1501","post_id":"6807","mon_id":"1159012","chapter_id":"1159023","question":"<p>T&iacute;nh h\u1ee3p l&iacute;:<\/p><p>459 + 213 + 541 =<\/p>","options":["<strong>A.<\/strong> 1123","<strong>B.<\/strong> 1231","<strong>C.<\/strong> 1321","<strong>D.<\/strong> 1213"],"correct":"4","level":"1","hint":"<p>\u0110\u1ed5i ch\u1ed7 c&aacute;c s\u1ed1 h\u1ea1ng \u0111\u1ec3 t&iacute;nh ph&ugrave; h\u1ee3p<\/p>","answer":"<p>&nbsp; &nbsp; 459 +&nbsp;213&nbsp; + 541<\/p><p>= (459 + 541) + 213<\/p><p>=&nbsp; &nbsp; &nbsp; &nbsp;1000&nbsp; &nbsp; &nbsp;+ 213&nbsp;<\/p><p>=&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1213<\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong>&nbsp;1213<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-11-22 02:32:29","option_type":"txt","len":0},{"id":"1502","post_id":"6807","mon_id":"1159012","chapter_id":"1159023","question":"<p>Ch\u1ecdn s\u1ed1 th&iacute;ch h\u1ee3p \u0111i\u1ec1n v&agrave;o ch\u1ed7 tr\u1ed1ng.<\/p><p>&lt;input class=\"_tit_hoi\" disabled=\"disabled\" type=\"text\"\/&gt;&nbsp;+ 5426 = 5426 + 114<\/p>","options":["<strong>A.<\/strong> 141","<strong>B.<\/strong> 411","<strong>C.<\/strong> 114","<strong>D.<\/strong> 113"],"correct":"3","level":"1","hint":"<p>Quan s&aacute;t c&aacute;c s\u1ed1 h\u1ea1ng \u1edf hai v\u1ebf c&oacute; g&igrave; gi\u1ed1ng nhau.<\/p>","answer":"<p><span style=\"color:#16a085;\"><strong>114<\/strong><\/span>&nbsp;+ 5426 = 5426 + 114<\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>C.<\/strong>&nbsp;114<\/span><span style=\"color:#16a085;\"><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-11-22 02:34:49","option_type":"txt","len":0}]}