{"common":{"save":0,"post_id":"5954","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1545","post_id":"5954","mon_id":"1158530","chapter_id":"1158701","question":"<p>Th\u01b0 vi\u1ec7n A có 36 500 cu\u1ed1n sách. Th\u01b0 vi\u1ec7n B có ít h\u01a1n th\u01b0 vi\u1ec7n A là 7 500 cu\u1ed1n sách. H\u1ecfi c\u1ea3 hai th\u01b0 vi\u1ec7n có t\u1ea5t c\u1ea3 bao nhiêu cu\u1ed1n sách?<\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/hoa-qua\/carrot.png\" \/><\/div>","options":["<strong>A.<\/strong> 29 000 cu\u1ed1n sách","<strong>B.<\/strong> 44 000 cu\u1ed1n sách","<strong>C.<\/strong> 80 500 cu\u1ed1n sách","<strong>D.<\/strong> 65 500 cu\u1ed1n sách"],"correct":"4","level":"3","hint":"<p>Tính s\u1ed1 cu\u1ed1n sách c\u1ee7a th\u01b0 vi\u1ec7n B ta dùng phép tr\u1eeb. <\/p><p>Tính s\u1ed1 sách c\u1ee7a c\u1ea3 hai th\u01b0 vi\u1ec7n ta dùng phép c\u1ed9ng.<\/p>","answer":"<p>S\u1ed1 cu\u1ed1n sách c\u1ee7a th\u01b0 vi\u1ec7n B là<\/p><p>36 500 – 7 500 = 29 000 (cu\u1ed1n)<\/p><p>C\u1ea3 hai th\u01b0 vi\u1ec7n có t\u1ea5t c\u1ea3 s\u1ed1 cu\u1ed1n sách là<\/p><p>36 500 + 29 000 = 65 500 (cu\u1ed1n)<\/p><p>\u0110áp s\u1ed1: 65 500 cu\u1ed1n<\/p><p>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"> <strong>D.<\/strong> 65 500 cu\u1ed1n sách<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-06-17 07:52:24","option_type":"txt","len":2},{"id":"1547","post_id":"5954","mon_id":"1158530","chapter_id":"1158701","question":"<p>Tính nh\u1ea9m: 86 000 – (20 000 + 16 000) + 2000 x 5 = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/><\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/hoa-qua\/cherry.png\" \/><\/div>","options":"","correct":["[\"60 000\"]"],"level":"3","hint":"<p>Khi trong bi\u1ec3u th\u1ee9c có ch\u1ee9a ngo\u1eb7c thì ta th\u1ef1c hi\u1ec7n phép tính trong ngo\u1eb7c tr\u01b0\u1edbc, r\u1ed3i th\u1ef1c hi\u1ec7n phép nhân (chia) r\u1ed3i m\u1edbi \u0111\u1ebfn phép c\u1ed9ng (tr\u1eeb).<\/p>","answer":"<p> 86 000 – (20 000 + 16 000) + 2000 x 5<\/p><p>= 86 000 – 36 000 + 10 000<\/p><p>= 50 000 + 10 000<\/p><p>= 60 000<\/p><p>S\u1ed1 c\u1ea7n \u0111i\u1ec1n là <span style=\"color:#16a085;\"><strong>6<\/strong><\/span><span style=\"color:#16a085;\"><strong>0 000<\/strong><\/span><\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"1","date":"2022-06-17 07:58:19"},{"id":"1549","post_id":"5954","mon_id":"1158530","chapter_id":"1158701","question":"<p>M\u1ed9t c\u1eeda hàng có 20 000 lít x\u0103ng, c\u1eeda hàng nh\u1eadp thêm v\u1ec1 4 000 lít x\u0103ng. H\u1ecfi sau khi bán \u0111i 17 000 lít x\u0103ng, c\u1eeda hàng \u0111ó còn l\u1ea1i bao nhiêu lít x\u0103ng?<\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/hoa-qua\/chuoi.png\" \/><\/div>","options":["<strong>A.<\/strong> 24 000 lít x\u0103ng","<strong>B. <\/strong>7 000 lít x\u0103ng","<strong>C.<\/strong> 17 000 lít x\u0103ng","<strong>D.<\/strong> 4 000 lít x\u0103ng"],"correct":"2","level":"3","hint":"","answer":"<p>Sau khi nh\u1eadp thêm 4000 lít x\u0103ng, s\u1ed1 lít x\u0103ng c\u1eeda hàng có là<\/p><p>20 000 + 4 000 = 24 000 (lít)<\/p><p>Sau khi bán \u0111i 17 000 lít x\u0103ng, s\u1ed1 lít x\u0103ng c\u1eeda hàng còn l\u1ea1i là<\/p><p>24 000 – 17 000 = 7 000 (lít)<\/p><p>\u0110áp s\u1ed1: 7 000 lít x\u0103ng<\/p><p>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"> <strong>B. <\/strong>7 000 lít x\u0103ng<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-06-17 08:03:53","option_type":"txt","len":2}]}