{"common":{"save":0,"post_id":"6808","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1514","post_id":"6808","mon_id":"1159012","chapter_id":"1159023","question":"<p>Tính b\u1eb1ng cách thu\u1eadn ti\u1ec7n.<\/p><p>561 + 92 + 39 + 208 =<\/p>","options":["<strong>A.<\/strong> 900","<strong>B.<\/strong> 890","<strong>C.<\/strong> 1000","<strong>D.<\/strong> 800"],"correct":"1","level":"2","hint":"","answer":"<p>561 + 92 + 39 + 208<\/p><p>= (561 + 39) + (92 + 208)<\/p><p>= 600 + 300<\/p><p>= 900<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> 900<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-11-22 02:56:53","option_type":"txt","len":0},{"id":"1515","post_id":"6808","mon_id":"1159012","chapter_id":"1159023","question":"<p>Tính b\u1eb1ng cách thu\u1eadn ti\u1ec7n.<\/p><p>773 + 898 + 1227 + 102 = <\/p>","options":["<strong>A.<\/strong> 2000","<strong>B.<\/strong> 3000","<strong>C.<\/strong> 2900","<strong>D.<\/strong> 1000"],"correct":"2","level":"2","hint":"","answer":"<p>773 + 898 + 1227 + 102<\/p><p>= (773 + 1227) + (898 + 102)<\/p><p>= 2000 + 1000<\/p><p>= 3000<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><\/span><span style=\"color:#16a085;\"><strong>B.<\/strong> 3000<\/span><\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"131","test":"0","date":"2023-11-22 02:59:16","option_type":"txt","len":0},{"id":"1517","post_id":"6808","mon_id":"1159012","chapter_id":"1159023","question":"<p>\u0110i\u1ec1n các s\u1ed1 thích h\u1ee3p vào ch\u1ed7 tr\u1ed1ng (t\u1eeb trái sang ph\u1ea3i, trên xu\u1ed1ng d\u01b0\u1edbi) \u0111\u1ec3 th\u1ef1c hi\u1ec7n phép tính c\u1ed9ng sau: <\/p><p><span style=\"color:#2980b9;\"><strong> 1986 + 201 + 299 + 14<\/strong><\/span><\/p><p><span style=\"color:#2980b9;\">= (<input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> + 14) + (201 + <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/>)<\/span><\/p><p><span style=\"color:#2980b9;\">= 2000 + 500<\/span><\/p><p>= <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/><\/p>","options":"","correct":["[\"1986\",\"299\",\"2500\"]"],"level":"2","hint":"","answer":"<p> 1986 + 201 + 299 + 14<\/p><p>= (<span style=\"color:#16a085;\"><strong>1986<\/strong><\/span> + 14) + (201 + <span style=\"color:#16a085;\"><strong>299<\/strong><\/span>)<\/p><p>= 2000 + 500<\/p><p>= <span style=\"color:#16a085;\"><strong>2500<\/strong><\/span><\/p><p>Các s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u1ea7n l\u01b0\u1ee3t t\u1eeb trái sang ph\u1ea3i, t\u1eeb trên xu\u1ed1ng d\u01b0\u1edbi là <span style=\"color:#16a085;\"><strong>1986 ; 299 ; 2500<\/strong><\/span><\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"0","date":"2023-11-22 03:02:29"}]}