{"save":1,"level":1,"time":"45","total":20,"point":5,"segment":[{"id":"2285","test_id":"381","question":"<p>Vi\u1ebft phân s\u1ed1 sau d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp phân?<\/p><p><span class=\"math-tex\">$\\dfrac{39}{75}$<\/span> = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\" \/><\/p>","options":"","correct":["0,52"],"answer":"<p>Ta có: <span class=\"math-tex\">$\\dfrac{39}{75}$<\/span> = <span class=\"math-tex\">$\\dfrac{13}{25}$<\/span> = <span class=\"math-tex\">$\\dfrac{13.4}{25.4}$<\/span> = <span class=\"math-tex\">$\\dfrac{52}{100}$<\/span> = 0,52<\/p><p>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n là <span style=\"color:#16a085;\"><strong>0,52<\/strong><\/span>.<\/p>","type":"blank","user_id":"131","test":"2","date":"2021-09-28 03:35:45"},{"id":"2287","test_id":"381","question":"<p>Trong các câu sau, câu nào <strong>sai<\/strong>?<\/p><p> <\/p>","options":["S\u1ed1 \u0111\u1ed1i c\u1ee7a 2,3 là -2,3","<span class=\"math-tex\">$\\dfrac{-17}{1000}$<\/span> = -0,017","(10,54)<sup>0<\/sup> = 1","Làm tròn 0,99 \u0111\u1ebfn ch\u1eef s\u1ed1 th\u1eadp phân th\u1ee9 nh\u1ea5t \u0111\u01b0\u1ee3c 0,9"],"correct":"4","answer":"<p>Xét các \u0111áp án:<\/p><p>S\u1ed1 \u0111\u1ed1i c\u1ee7a 2,3 là -2,3 <span style=\"color:#16a085;\">\u0110úng<\/span><\/p><p><span class=\"math-tex\">$\\dfrac{-17}{1000}$<\/span> = -0,017 <span style=\"color:#16a085;\">\u0110ún<\/span><\/p><p>(10,54)<sup>0<\/sup> = 1 <span style=\"color:#16a085;\">\u0110úng<\/span><\/p><p>Làm tròn 0,99 \u0111\u1ebfn ch\u1eef s\u1ed1 th\u1eadp phân th\u1ee9 nh\u1ea5t \u0111\u01b0\u1ee3c 0,9 <span style=\"color:#e74c3c;\">Sai<\/span> vì làm tròn 0,99 \u0111\u1ebfn ch\u1eef s\u1ed1 th\u1eadp phân th\u1ee9 nh\u1ea5t \u0111\u01b0\u1ee3c <strong>1,0<\/strong><\/p><p>V\u1eady ch\u1ecdn \u0111áp án <span style=\"color:#16a085;\"><strong>Làm tròn 0,99 \u0111\u1ebfn ch\u1eef s\u1ed1 th\u1eadp phân th\u1ee9 nh\u1ea5t \u0111\u01b0\u1ee3c 0,9<\/strong><\/span><\/p>","type":"choose","user_id":"131","test":"2","date":"2021-09-28 03:41:26"}]}