Toán lớp 6 - Sách kết nối tri thức - Đề kiểm tra 45 phút - Toán lớp 6 - Tháng 1 - Số 1
{"save":1,"level":1,"time":"45","total":20,"point":5,"segment":[{"id":"2282","test_id":"380","question":"<p>Ch\u1ecdn phép so sánh <strong>\u0111úng<\/strong><\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{3}<\\dfrac{2}{6}$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{5}{9}> \\dfrac{5}{10}$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{12}=\\dfrac{-1}{12}$<\/span>"],"correct":"2","answer":"<p><strong>A.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{3}<\\dfrac{2}{6}$<\/span> (<span style=\"color:#c0392b;\">sai <\/span>vì <span class=\"math-tex\">$\\dfrac{1}{3}=\\dfrac{2}{6}$<\/span> )<\/p><p><strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{5}{9}> \\dfrac{5}{10}$<\/span> (<span style=\"color:#16a085;\">\u0111úng, <\/span>so sánh hai phân s\u1ed1 d\u01b0\u01a1ng có cùng t\u1eed)<\/p><p><strong>C.<\/strong> <span class=\"math-tex\">$\\dfrac{1}{12}=\\dfrac{-1}{12}$<\/span> (<span style=\"color:#c0392b;\">sai <\/span>vì <span class=\"math-tex\">$\\dfrac{1}{12}>\\dfrac{-1}{12}$<\/span>)<\/p><p>\u0110áp án \u0111úng là <strong>B.<\/strong> <span class=\"math-tex\">$\\dfrac{5}{9}> \\dfrac{5}{10}$<\/span><\/p><p><strong>Chú ý: Trong hai phân s\u1ed1 d\u01b0\u01a1ng có cùng t\u1eed, phân s\u1ed1 nào có m\u1eabu nh\u1ecf h\u01a1n thì phân s\u1ed1 \u0111ó l\u1edbn h\u01a1n.<\/strong><\/p>","type":"choose","user_id":"131","test":"2","date":"2021-09-28 03:25:27"},{"id":"2283","test_id":"380","question":"<p>Tìm x bi\u1ebft:<\/p><p>2x + <span class=\"math-tex\">$\\dfrac{1}{5}$<\/span> = <span class=\"math-tex\">$\\dfrac{4}{15}$<\/span><\/p>","options":["x = <span class=\"math-tex\">$\\dfrac{1}{30}$<\/span>","x = <span class=\"math-tex\">$\\dfrac{2}{15}$<\/span>","x = <span class=\"math-tex\">$\\dfrac{1}{17}$<\/span>"],"correct":"1","answer":"<p>2x + <span class=\"math-tex\">$\\dfrac{1}{5}$<\/span> = <span class=\"math-tex\">$\\dfrac{4}{15}$<\/span><\/p><p>2x = <span class=\"math-tex\">$\\dfrac{4}{15}-\\dfrac{1}{5}$<\/span><\/p><p>2x = <span class=\"math-tex\">$\\dfrac{4}{15}-\\dfrac{3}{15}$<\/span><\/p><p>2x = <span class=\"math-tex\">$\\dfrac{1}{15}$<\/span><\/p><p> x = <span class=\"math-tex\">$\\dfrac{1}{15}$<\/span> : 2<\/p><p> x = <span class=\"math-tex\">$\\dfrac{1}{15}.\\dfrac{1}{2}$<\/span><\/p><p> x = <span class=\"math-tex\">$\\dfrac{1}{30}$<\/span><\/p><p>V\u1eady<span style=\"color:#16a085;\"> x = <span class=\"math-tex\">$\\dfrac{1}{30}$<\/span><\/span><\/p><p>\u0110áp án \u0111úng là<span style=\"color:#16a085;\"> x = <span class=\"math-tex\">$\\dfrac{1}{30}$<\/span><\/span><\/p>","type":"choose","user_id":"131","test":"2","date":"2021-09-28 03:30:02"}]}
