Chú ý: Để đảm bảo quyền lợi và bảo vệ tài khoản của mình
Bạn hãy xác thực địa chỉ email đăng ký nhé. Chi tiết xem tại đây
Bạn hãy xác thực địa chỉ email đăng ký nhé. Chi tiết xem tại đây
{"common":{"save":0,"post_id":"7636","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1333","post_id":"7636","mon_id":"1159414","chapter_id":"1159426","question":"<p>\u0110i\u1ec1n s\u1ed1 thích h\u1ee3p vào ch\u1ed7 ch\u1ea5m:<\/p><p>7,02 t\u1ea5n = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> kg<\/p><p>0,35 t\u1ea1 = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> kg<\/p>","options":"","correct":["[\"7020\",\"35\"]"],"level":"3","hint":"<p>1 t\u1ea5n = 1000 kg nên 1 kg = <span class=\"math-tex\">$\\dfrac{1}{1000}$<\/span> t\u1ea5n<\/p><p>1 t\u1ea1 = 100 kg nên 1 kg = <span class=\"math-tex\">$\\dfrac{1}{100}$<\/span> t\u1ea1<\/p>","answer":"<p>7,02 t\u1ea5n = <span class=\"math-tex\">$\\dfrac{702}{100}$<\/span> t\u1ea5n = <span class=\"math-tex\">$\\dfrac{7020}{1000}$<\/span> t\u1ea5n = <span style=\"color:#16a085;\"><strong>7020<\/strong><\/span> kg<\/p><p>0,35 t\u1ea1 = <span class=\"math-tex\">$\\dfrac{35}{100}$<\/span> t\u1ea1 = <span style=\"color:#16a085;\"><strong>35<\/strong><\/span> kg<\/p><p>V\u1eady các s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u1ea7n l\u01b0\u1ee3t là <span style=\"color:#16a085;\"><strong>7020<\/strong><\/span> ; <span style=\"color:#16a085;\"><strong>35<\/strong><\/span>.<span style=\"color:#16a085;\"><\/span><\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"0","date":"2024-09-12 03:12:25"},{"id":"1335","post_id":"7636","mon_id":"1159414","chapter_id":"1159426","question":"<p>\u0110i\u1ec1n s\u1ed1 thích h\u1ee3p vào ch\u1ed7 ch\u1ea5m: 2 gi\u1edd 45 phút = … gi\u1edd<\/p>","options":["<strong>A.<\/strong> 2,75 gi\u1edd","<strong>B.<\/strong> 2,5 gi\u1edd","<strong>C.<\/strong> 2,45 gi\u1edd","<strong>D.<\/strong> 2,15 gi\u1edd"],"correct":"1","level":"3","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> 2,75 gi\u1edd<\/span><\/p><p>\u0110\u1ed5i: 45 phút = <span class=\"math-tex\">$\\dfrac{45}{60}$<\/span> gi\u1edd = <span class=\"math-tex\">$\\dfrac{3}{4}$<\/span> gi\u1edd = <span class=\"math-tex\">$\\dfrac{75}{100}$<\/span> gi\u1edd<\/p><p>2 gi\u1edd 45 phút = 2 gi\u1edd + 45 phút = 2 gi\u1edd + <span class=\"math-tex\">$\\dfrac{75}{100}$<\/span> gi\u1edd = <span class=\"math-tex\">$\\dfrac{275}{100}$<\/span> gi\u1edd =<span style=\"color:#16a085;\"><strong> 2,75<\/strong><\/span> gi\u1edd<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-09-12 03:15:48","option_type":"txt","len":1},{"id":"1338","post_id":"7636","mon_id":"1159414","chapter_id":"1159426","question":"<p>\u0110i\u1ec1n s\u1ed1 thích h\u1ee3p vào ch\u1ed7 ch\u1ea5m: 3 gi\u1edd 54 giây = … gi\u1edd<\/p><p><meta charset=\"utf-8\" \/><\/p><p dir=\"ltr\"><meta charset=\"utf-8\" \/><\/p>","options":["<strong>A.<\/strong> 3,015 gi\u1edd","<strong>B.<\/strong> 3,15 gi\u1edd","<strong>C.<\/strong> 30,15 gi\u1edd","<strong>D.<\/strong> 3,051 gi\u1edd"],"correct":"1","level":"3","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> 3,015 gi\u1edd<\/span><\/p><p>1 gi\u1edd = 60 phút = 60 x 60 giây = 3600 giây nên 1 giây= <span class=\"math-tex\">$\\dfrac{1}{3600}$<\/span> gi\u1edd<\/p><p>Do \u0111ó 54 giây = <span class=\"math-tex\">$\\dfrac{54}{3600}$<\/span> gi\u1edd = <span class=\"math-tex\">$\\dfrac{3}{200}$<\/span> gi\u1edd = <span class=\"math-tex\">$\\dfrac{15}{1000}$<\/span> gi\u1edd<\/p><p>V\u1eady 3 gi\u1edd 54 giây = 3 gi\u1edd + <span class=\"math-tex\">$\\dfrac{15}{1000}$<\/span> gi\u1edd = <span class=\"math-tex\">$\\dfrac{3015}{1000}$<\/span> gi\u1edd = <span style=\"color:#16a085;\"><strong>3,015 <\/strong><\/span>gi\u1edd<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-09-13 01:26:49","option_type":"txt","len":1}]}