Toán lớp 7 - Sách kết nối tri thức - Đề kiểm tra 15 phút - Toán lớp 7 - Sách kết nối tri thức - Tháng 3 - Số 1

{"save":1,"level":1,"time":"15","total":10,"point":5,"segment":[{"id":"10303","test_id":"690","question":"<p>Bi\u1ec3u th\u1ee9c n&agrave;o d\u01b0\u1edbi \u0111&acirc;y l&agrave; bi\u1ec3u th\u1ee9c s\u1ed1?<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$x^2-1$<\/span>.","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{3}{4}+yz$<\/span>.","<strong>C.<\/strong> <span class=\"math-tex\">$4a-5b+c$<\/span>.","<p data-end=\"410\" data-start=\"311\"><strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{2}.3,5-2030^0$<\/span>.<\/p>"],"correct":"4","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{2}.3,5-2030^0$<\/span>.<\/span><\/p><p>Bi\u1ec3u th\u1ee9c kh&ocirc;ng ch\u1ee9a ch\u1eef g\u1ecdi l&agrave; bi\u1ec3u th\u1ee9c s\u1ed1.<\/p><p><span style=\"color:#16a085;\">Bi\u1ec3u th\u1ee9c s\u1ed1 l&agrave;&nbsp;<span class=\"math-tex\">$\\dfrac{1}{2}.3,5-2030^0$<\/span>.<\/span><\/p><p>C&aacute;c bi\u1ec3u th\u1ee9c&nbsp;<span class=\"math-tex\">$x^2-1$<\/span>&nbsp;;&nbsp;<span class=\"math-tex\">$\\dfrac{3}{4}+yz$<\/span>&nbsp;; <span class=\"math-tex\">$4a-5b+c$<\/span>&nbsp;l&agrave; bi\u1ec3u th\u1ee9c \u0111\u1ea1i s\u1ed1.<\/p>","type":"choose","user_id":"126","test":"1","date":"2025-08-03 21:06:58"},{"id":"10304","test_id":"690","question":"<p>Vi\u1ebft bi\u1ec3u th\u1ee9c \u0111\u1ea1i&nbsp;s\u1ed1 bi\u1ec3u th\u1ecb hai l\u1ea7n&nbsp;t\u1ed5ng c\u1ee7a m v&agrave; n.<\/p>","options":["<span bgimg=\"color:#000000;\"><strong>A.<\/strong> <span class=\"math-tex\">$2(m+n)$<\/span>.<\/span>","<span bgimg=\"color:#000000;\"><strong>B.<\/strong> <span class=\"math-tex\">$2m+n$<\/span>.<\/span>","<span bgimg=\"color:#000000;\"><strong>C.<\/strong>&nbsp;<span class=\"math-tex\">$m+2n $<\/span>.<\/span>","<p data-end=\"736\" data-start=\"643\"><span bgimg=\"color:#000000;\"><strong>D.<\/strong> <span class=\"math-tex\">$m+n$<\/span>.<\/span><\/p>"],"correct":"1","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong> <span class=\"math-tex\">$2(m+n)$<\/span>.<\/span><\/p><p>T\u1ed5ng c\u1ee7a m v&agrave; n l&agrave;&nbsp;<span class=\"math-tex\">$m+n$<\/span>.<\/p><p>Hai l\u1ea7n t\u1ed5ng c\u1ee7a m v&agrave; n l&agrave;&nbsp;<span style=\"color:#16a085;\"><span style=\"color:#000000;\"><span class=\"math-tex\">$2(m+n)$<\/span><\/span><\/span><span style=\"color:#000000;\">.<\/span><\/p>","type":"choose","user_id":"126","test":"3","date":"2025-08-03 21:09:07"}]}