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\">S\u1ed1 n&agrave;o sau \u0111&acirc;y l&agrave; <strong data-end=\"521\" data-start=\"508\">s\u1ed1 h\u1eefu t\u1ec9<\/strong>?<\/p>","options":["A. &pi;<br data-end=\"539\" data-start=\"536\" \/>\n&nbsp;","B.&nbsp;<span class=\"math-tex\">$\\sqrt{2} $<\/span>","C.&nbsp;<span class=\"math-tex\">$\\frac{-3}{4}$<\/span>","D.&nbsp;<span class=\"math-tex\">$\\sqrt{5} $<\/span>"],"correct":"3","answer":"<p>\u0110&aacute;p &aacute;n \u0111&uacute;ng: C<\/p><p>Gi\u1ea3i th&iacute;ch: S\u1ed1 h\u1eefu t\u1ec9 l&agrave; s\u1ed1 c&oacute; th\u1ec3 vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng ph&acirc;n s\u1ed1, \u0111&aacute;p &aacute;n A,B,D l&agrave; c&aacute;c s\u1ed1 v&ocirc; t\u1ec9 kh&ocirc;ng vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng ph&acirc;n s\u1ed1.<\/p>","type":"choose","user_id":"126","test":"2","date":"2025-08-01 15:12:49"},{"id":"9855","test_id":"664","question":"<p data-end=\"691\" data-start=\"667\">Gi&aacute; tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c:&nbsp;<span class=\"math-tex\">$ |\\frac{-5}{6} |+\\frac{1}{2}$<\/span><\/p>","options":["A.&nbsp;<span class=\"math-tex\">$\\frac{4}{3}$<\/span>","B.&nbsp;<span class=\"math-tex\">$\\frac{3}{7}$<\/span>","C.&nbsp;<span class=\"math-tex\">$\\frac{3}{4}$<\/span>","D.&nbsp;<span class=\"math-tex\">$\\frac{3}{8}$<\/span>"],"correct":"1","answer":"<p>\u0110&aacute;p &aacute;n \u0111&uacute;ng A<\/p><p>V&igrave; \u2223&minus;5\/6\u2223=5\/6;&nbsp;5\/6+1\/2=10\/12+6\/12=16\/12=4\/3<\/p>","type":"choose","user_id":"126","test":"1","date":"2025-08-01 15:17:11"}]}