Toán lớp 7 - Sách kết nối tri thức - Đề kiểm tra 15 phút - Toán lớp 7 - Sách kết nối tri thức - Tháng 9 - Số 2

{"save":1,"level":1,"time":"15","total":10,"point":5,"segment":[{"id":"9854","test_id":"664","question":"<p data-end=\"522\" data-start=\"490\">Ch\u1ecdn kh\u1eb3ng \u0111\u1ecbnh \u0111&uacute;ng.<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$3\\notin N$<\/span>.","<strong>B.<\/strong>&nbsp;<span class=\"math-tex\">$-2\\in N$<\/span>.","<strong>C.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{-3}{4}\\in Q$<\/span>.","<strong>D.<\/strong>&nbsp;<span class=\"math-tex\">$0\\notin Q$<\/span>."],"correct":"3","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>C.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{-3}{4}\\in Q$<\/span>.<\/span><\/p><p><strong>A.<\/strong> <span class=\"math-tex\">$3\\notin N$<\/span>&nbsp;(sai, v&igrave;&nbsp;<span class=\"math-tex\">$3\\in N$<\/span>).<\/p><p><strong>B.<\/strong>&nbsp;<span class=\"math-tex\">$-2\\in N$<\/span>&nbsp;(sai, v&igrave;&nbsp;<span class=\"math-tex\">$-2\\notin N$<\/span>).<\/p><p><strong>C.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{-3}{4}\\in Q$<\/span>&nbsp;(<span style=\"color:#16a085;\">\u0111&uacute;ng<\/span>).<\/p><p><strong>D.<\/strong>&nbsp;<span class=\"math-tex\">$0\\notin Q$<\/span>&nbsp;(sai, v&igrave; <span class=\"math-tex\">$0\\in Q$<\/span>).<\/p>","type":"choose","user_id":"126","test":"2","date":"2025-08-01 15:12:49"},{"id":"9855","test_id":"664","question":"<p data-end=\"691\" data-start=\"667\">K\u1ebft qu\u1ea3 c\u1ee7a ph&eacute;p t&iacute;nh&nbsp;<span class=\"math-tex\">$\\dfrac{1}{2}-\\dfrac{5}{6}+\\dfrac{1}{3}$<\/span><\/p>","options":["<strong>A.<\/strong>&nbsp;<span class=\"math-tex\">$0$<\/span>","<strong>B.<\/strong>&nbsp;<span class=\"math-tex\">$1$<\/span>","<strong>C.<\/strong>&nbsp;<span class=\"math-tex\">$\\dfrac{7}{6}$<\/span>","<strong>D.&nbsp;<\/strong><span class=\"math-tex\">$\\dfrac{1}{6}$<\/span>"],"correct":"1","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;<span class=\"math-tex\">$0$<\/span>.<\/span><\/p><p><span class=\"math-tex\">$\\dfrac{1}{2}-\\dfrac{5}{6}+\\dfrac{1}{3}$<\/span><span class=\"math-tex\">$=\\dfrac{3}{6}-\\dfrac{5}{6}+\\dfrac{2}{6}$<\/span><span class=\"math-tex\">$=\\dfrac{3-5+2}{6}$<\/span><span class=\"math-tex\">$=\\dfrac{0}{6}$<\/span><span class=\"math-tex\">$=0$<\/span>.<\/p>","type":"choose","user_id":"126","test":"1","date":"2025-08-01 15:17:11"}]}