{"common":{"save":0,"post_id":"4229","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1470","post_id":"4229","mon_id":"11445","chapter_id":"11468","question":"<p>\u0110i\u1ec1n vào ô tr\u1ed1ng: 75 - 19 - 37 = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/><\/p><div class=\"lt123_imgs\"><img class=\"img_dd\" src=\"\/data\/library\/lop1\/book.png\" \/><\/div>","options":"","correct":["[\"19\"]"],"level":"3","hint":"<p>Con hãy th\u1ef1c hi\u1ec7n phép tr\u1eeb t\u1eeb trái sang ph\u1ea3i nhé!<\/p>","answer":"<p>Ta có: 75 - 19 - 37 = (75 - 19) - 37 = 56 - 37 = 19.<\/p><p>V\u1eady \u0111áp án \u0111úng là: <span style=\"color:#16a085;\"><strong>19<\/strong><\/span>.<span style=\"color:#16a085;\"><\/span><\/p>","type":"blank","extra_type":"","time":"0","user_id":"126","test":"0","date":"2021-07-24 15:45:31"},{"id":"1472","post_id":"4229","mon_id":"11445","chapter_id":"11468","question":"<p>N\u1ed1i c\u1ed9t bên trái v\u1edbi c\u1ed9t bên ph\u1ea3i \u0111\u1ec3 \u0111\u01b0\u1ee3c phép tính \u0111úng:<\/p><div class=\"lt123_imgs\"> <\/div>","options":[["82 - 29 - 35 ","64 - 28 - 19 "],["17","18"],["18","17"]],"correct":[1,0],"level":"3","hint":"<p>Con hãy th\u1ef1c hi\u1ec7n phép tr\u1eeb nhé!<\/p>","answer":"<p>Ta có:<\/p><p>82 - 29 - 35 = (82 - 29) - 35 = 53 - 35 = 18<\/p><p>64 - 28 - 19 = (64 - 28) - 19 = 36 - 19 = 17<\/p><p>V\u1eady n\u1ed1i <span style=\"color:#16a085;\"><strong>82 - 29 - 35 v\u1edbi 18<\/strong><\/span>; <span style=\"color:#16a085;\"><strong>64 - 28 - 19 v\u1edbi 17<\/strong><\/span>.<\/p>","type":"matching","extra_type":"mat_txt","time":"0","user_id":"126","test":"0","date":"2021-07-24 15:49:56"},{"id":"1473","post_id":"4229","mon_id":"11445","chapter_id":"11468","question":"<p>S\u1eafp x\u1ebfp k\u1ebft qu\u1ea3 các phép toán d\u01b0\u1edbi \u0111ây theo th\u1ee9 t\u1ef1 gi\u1ea3m d\u1ea7n:<\/p><div class=\"lt123_imgs\"> <\/div>","options":"","correct":["64 - 28","55 - 29","42 - 26"],"level":"3","hint":"<p>Con hãy th\u1ef1c hi\u1ec7n các phép tính tr\u1eeb \u1edf trên nhé!<\/p>","answer":"<p>Ta có:<br \/>64 - 28 = 36<\/p><p>55 - 29 = 26<\/p><p>42 - 26 = 16<\/p><p>Vì 36 > 26 > 16 nên 64 - 28 > 55 - 29 > 42 - 26<\/p><p>V\u1eady th\u1ee9 t\u1ef1 s\u1eafp x\u1ebfp \u0111úng là: <span style=\"color:#16a085;\"><strong>64 - 28; 55 - 29; 42 - 26<\/strong><\/span>.<\/p>","type":"reorder","extra_type":"number","time":"0","user_id":"126","test":"0","date":"2021-07-24 15:54:04","word":["42 - 26","64 - 28","55 - 29"]}]}
