{"common":{"save":0,"post_id":"4355","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2359","post_id":"4355","mon_id":"11445","chapter_id":"11582","question":"<div class=\"bt_noiso\"><span class=\"o_so\">453<\/span> <span class=\"o_muiten\"><span class=\"o_tren\">-27<\/span><\/span> <span class=\"o_so\"><input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/><\/span> <span class=\"o_muiten\"><span class=\"o_tren\">+215<\/span><\/span><span class=\"o_so\"><input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/><\/span><\/div><div class=\"bt_noiso\"> <\/div><div class=\"bt_noiso\"> <\/div><div class=\"bt_noiso\"> <\/div>","options":"","correct":["[\"426\",\"641\"]"],"level":"2","hint":"","answer":"<p>Th\u1ef1c hi\u1ec7n phép tính t\u1eeb trái sang ph\u1ea3i:<\/p><p>453 - 27 = <strong>426<\/strong><\/p><p>426 + 215 = <strong>641<\/strong><\/p><p>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n là<span style=\"color:#16a085;\"><strong> 426<\/strong> <\/span>và<span style=\"color:#16a085;\"><strong> 641<\/strong><\/span><\/p>","type":"blank","extra_type":"","time":"0","user_id":"128","test":"3","date":"2021-07-31 01:23:53"},{"id":"2360","post_id":"4355","mon_id":"11445","chapter_id":"11582","question":"<div class=\"lt123matrix\"><div class=\"lt123_math\"><span class=\"mth_td item_col\" col=\"0\" id=\"mth_td_0_0\" row=\"0\"><\/span> <span class=\"mth_td item_col\" col=\"1\" id=\"mth_td_0_1\" row=\"0\"><\/span> <span class=\"mth_td item_col\" col=\"2\" id=\"mth_td_0_2\" row=\"0\">8<\/span> <span class=\"mth_td item_col\" col=\"3\" id=\"mth_td_0_3\" row=\"0\">2<\/span> <span class=\"mth_td item_col\" col=\"4\" id=\"mth_td_0_4\" row=\"0\">4<\/span> <span class=\"clear_both\" row=\"0\"><\/span> <span class=\"mth_td item_col\" col=\"0\" id=\"mth_td_1_0\" row=\"1\"><\/span> <span class=\"mth_td item_col ptru\" col=\"1\" id=\"mth_td_1_1\" row=\"1\"><span class=\"phep_tinh phep_tru\">-<\/span><\/span> <span class=\"mth_td item_col bm\" col=\"2\" id=\"mth_td_1_2\" row=\"1\">6<\/span> <span class=\"mth_td item_col otrong bm\" col=\"3\" id=\"mth_td_1_3\" row=\"1\"><input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/><\/span> <span class=\"mth_td item_col bm\" col=\"4\" id=\"mth_td_1_4\" row=\"1\">2<\/span> <span class=\"clear_both\" row=\"1\"><\/span> <span class=\"mth_td item_col\" col=\"0\" id=\"mth_td_2_0\" row=\"2\"><\/span> <span class=\"mth_td item_col\" col=\"1\" id=\"mth_td_2_1\" row=\"2\"><\/span> <span class=\"mth_td item_col\" col=\"2\" id=\"mth_td_2_2\" row=\"2\">1<\/span> <span class=\"mth_td item_col\" col=\"3\" id=\"mth_td_2_3\" row=\"2\">9<\/span> <span class=\"mth_td item_col otrong\" col=\"4\" id=\"mth_td_2_4\" row=\"2\"><input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/><\/span><\/div><\/div>","options":"","correct":["[\"3\",\"2\"]"],"level":"2","hint":"","answer":"<p>Xét : <\/p><p>Hàng \u0111\u01a1n v\u1ecb 4 - 2 = <strong>2<\/strong><\/p><p>Hàng ch\u1ee5c 12 -<strong> 3 <\/strong>= 9 vi\u1ebft 9 nh\u1edb <strong>1<\/strong> sang hàng tr\u0103m<\/p><p>Hàng tr\u0103m 8 - 1 = 7 (vì nh\u1edb <strong>1<\/strong> t\u1eeb hàng ch\u1ee5c sang)<\/p><p> 7 - 6 = 1 vi\u1ebft 1<\/p><div class=\"lt123matrix\"><div class=\"lt123_math\"><span class=\"mth_td item_col\" col=\"0\" id=\"mth_td_0_0\" row=\"0\"><\/span> <span class=\"mth_td item_col\" col=\"1\" id=\"mth_td_0_1\" row=\"0\"><\/span> <span class=\"mth_td item_col\" col=\"2\" id=\"mth_td_0_2\" row=\"0\">8<\/span> <span class=\"mth_td item_col\" col=\"3\" id=\"mth_td_0_3\" row=\"0\">2<\/span> <span class=\"mth_td item_col\" col=\"4\" id=\"mth_td_0_4\" row=\"0\">4<\/span> <span class=\"clear_both\" row=\"0\"><\/span> <span class=\"mth_td item_col\" col=\"0\" id=\"mth_td_1_0\" row=\"1\"><\/span> <span class=\"mth_td item_col ptru\" col=\"1\" id=\"mth_td_1_1\" row=\"1\"><span class=\"phep_tinh phep_tru\">-<\/span><\/span> <span class=\"mth_td item_col bm\" col=\"2\" id=\"mth_td_1_2\" row=\"1\">6<\/span> <span style=\"color:#000000;\"><strong><span class=\"mth_td item_col bm\" col=\"3\" id=\"mth_td_1_3\" row=\"1\">3<\/span><\/strong> <\/span><span class=\"mth_td item_col bm\" col=\"4\" id=\"mth_td_1_4\" row=\"1\">2<\/span> <span class=\"clear_both\" row=\"1\"><\/span> <span class=\"mth_td item_col\" col=\"0\" id=\"mth_td_2_0\" row=\"2\"><\/span> <span class=\"mth_td item_col\" col=\"1\" id=\"mth_td_2_1\" row=\"2\"><\/span> <span class=\"mth_td item_col\" col=\"2\" id=\"mth_td_2_2\" row=\"2\">1<\/span> <span class=\"mth_td item_col\" col=\"3\" id=\"mth_td_2_3\" row=\"2\">9<\/span> <span style=\"color:#3498db;\"><\/span><span style=\"color:#000000;\"><strong><span class=\"mth_td item_col\" col=\"4\" id=\"mth_td_2_4\" row=\"2\">2<\/span><\/strong><\/span><span style=\"color:#3498db;\"> <span class=\"clear_both\" row=\"2\"><\/span><\/span><div col=\"4\" id=\"new_row\" row=\"2\"><span style=\"color:#000000;\">V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u1ea7n l\u01b0\u1ee3t là <\/span><strong><span style=\"color:#16a085;\">3 <\/span><\/strong>;<strong><span style=\"color:#16a085;\"> 2<\/span><\/strong><\/div><\/div><\/div>","type":"blank","extra_type":"","time":"0","user_id":"128","test":"3","date":"2021-07-31 01:32:43"},{"id":"2361","post_id":"4355","mon_id":"11445","chapter_id":"11582","question":"<p>Ch\u1ecdn d\u1ea5u thích h\u1ee3p \u0111i\u1ec1n vào ô tr\u1ed1ng<\/p><p><span style=\"color:#2980b9;\"><strong>829 - 178 <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> 325 + 136<\/strong><\/span><\/p>","options":[">","<","="],"correct":"1","level":"2","hint":"<p>Con chú ý phép tr\u1eeb và phép c\u1ed9ng \u0111\u1ec1u có nh\u1edb 1 nhé!<\/p>","answer":"<p>Th\u1ef1c hi\u1ec7n phép tính \u1edf c\u1ea3 2 v\u1ebf:<\/p><p>829 - 178 = 651<\/p><p>325 + 136 = 461<\/p><p>So sánh 651 > 461 (vì 6 > 4)<\/p><p>nên <strong>829 - 178 > 325 + 136<\/strong><\/p><p>V\u1eady d\u1ea5u c\u1ea7n ch\u1ecdn là <span style=\"color:#16a085;\"><strong> ><\/strong><\/span><\/p>","type":"choose","extra_type":"balloon","time":"0","user_id":"128","test":"3","date":"2021-07-31 01:37:41","option_type":"txt","len":0}]}