{"common":{"save":0,"post_id":"6928","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2588","post_id":"6928","mon_id":"1159012","chapter_id":"1159024","question":"<p>M\u1ed9t mi\u1ebfng bìa hình ch\u1eef nh\u1eadt có chi\u1ec1u dài là <span class=\"math-tex\">$\\dfrac{5}{2}$<\/span> cm và chi\u1ec1u r\u1ed9ng là <span class=\"math-tex\">$\\dfrac{3}{4}$<\/span> cm. Tính di\u1ec7n tích c\u1ee7a mi\u1ebfng bìa.<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{15}{8}$<\/span> cm²","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{15}{4}$<\/span> cm²","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{25}{8}$<\/span> cm²","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{25}{4}$<\/span> cm²"],"correct":"1","level":"2","hint":"","answer":"<p>Di\u1ec7n tích c\u1ee7a mi\u1ebfng bìa là <\/p><p><span class=\"math-tex\">$\\dfrac{5}{2}\\mathbf{x}\\dfrac{3}{4}$<\/span> = <span class=\"math-tex\">$\\dfrac{5\\mathbf{x}3}{2\\mathbf{x}4}$<\/span> = <span class=\"math-tex\">$\\dfrac{15}{8}$<\/span> cm²<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{15}{8}$<\/span> cm².<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-11 03:25:07","option_type":"math","len":0},{"id":"2590","post_id":"6928","mon_id":"1159012","chapter_id":"1159024","question":"<p>M\u1ed9t hình vuông có c\u1ea1nh dài <span class=\"math-tex\">$\\dfrac{5}{3}$<\/span> cm. Tính di\u1ec7n tích c\u1ee7a hình vuông \u0111ó.<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{25}{16}$<\/span> cm²","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{10}{9}$<\/span> cm²","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{25}{3}$<\/span> cm²","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{25}{9}$<\/span> cm²"],"correct":"4","level":"2","hint":"","answer":"<p>Di\u1ec7n tích c\u1ee7a hình vuông là<\/p><p><span class=\"math-tex\">$\\dfrac{5}{3}\\mathbf{x}\\dfrac{5}{3}$<\/span> = <span class=\"math-tex\">$\\dfrac{5\\mathbf{x}5}{3\\mathbf{x}3}$<\/span> = <span class=\"math-tex\">$\\dfrac{25}{9}$<\/span> cm².<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{25}{9}$<\/span> cm².<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-11 03:28:14","option_type":"math","len":0},{"id":"2592","post_id":"6928","mon_id":"1159012","chapter_id":"1159024","question":"<p><span class=\"math-tex\">$\\dfrac{3}{4}\\mathbf{x}\\dfrac{5}{10}$<\/span> = <input class=\"_tit_hoi\" disabled=\"disabled\" type=\"text\"\/><\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{3}{4}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{3}{8}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{9}{8}$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{9}{4}$<\/span>"],"correct":"2","level":"2","hint":"","answer":"<p><span class=\"math-tex\">$\\dfrac{3}{4}\\mathbf{x}\\dfrac{5}{10}=\\dfrac{3}{4}\\mathbf{x}\\dfrac{1}{2}$<\/span> <span class=\"math-tex\">$=\\dfrac{3\\mathbf{x}1}{4\\mathbf{x}2}$<\/span> <span class=\"math-tex\">$=\\dfrac{3}{8}$<\/span><\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{3}{8}$<\/span>.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-02-11 03:31:48","option_type":"math","len":0}]}
