Chú ý: Để đảm bảo quyền lợi và bảo vệ tài khoản của mình
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{"common":{"save":0,"post_id":"4797","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8205","post_id":"4797","mon_id":"1158113","chapter_id":"1158126","question":"<p>S\u1eafp x\u1ebfp các s\u1ed1 sau theo th\u1ee9 t\u1ef1 <strong>gi\u1ea3m d\u1ea7n<\/strong><\/p><p>-5,6 ; 2,3 ; 8,6 ; -9,4 ; 0 .<\/p>","options":"","correct":["8,6","2,3","0","-5,6","-9,4"],"level":"2","hint":"<p>S\u1ed1 th\u1eadp phân d\u01b0\u01a1ng luôn l\u1edbn h\u01a1n 0.<\/p><p>S\u1ed1 th\u1eadp phân âm luôn nh\u1ecf h\u01a1n 0.<\/p><p>Trong hai s\u1ed1 th\u1eadp phân âm, s\u1ed1 nào có s\u1ed1 \u0111\u1ed1i l\u1edbn h\u01a1n thì s\u1ed1 \u0111ó nh\u1ecf h\u01a1n.<\/p>","answer":"<p>Các s\u1ed1 -5,6 ; 2,3 ; 8,6 ; -9,4 ; 0 s\u1eafp x\u1ebfp theo th\u1ee9 t\u1ef1 gi\u1ea3m d\u1ea7n là:<\/p><p>8,6 > 2,3 > 0 > -5,6 > -9,4<\/p><p>Do \u0111ó \u0111áp án \u0111úng là <\/p><p><span style=\"color:#16a085;\"><strong>8,6 2,3 0 -5,6 -9,4<\/strong><\/span><\/p>","type":"reorder","extra_type":"number","time":"0","user_id":"131","test":"1","date":"2021-10-04 00:08:52","word":["2,3","-9,4","8,6","-5,6","0"]},{"id":"8207","post_id":"4797","mon_id":"1158113","chapter_id":"1158126","question":"<p>Ch\u1ecdn câu <strong>\u0111úng<\/strong><\/p>","options":["<strong>A.<\/strong> -2,5 = <span class=\"math-tex\">$\\dfrac{-5}{2}$<\/span>","<strong>B.<\/strong> -4,5 = <span class=\"math-tex\">$\\dfrac{9}{2}$<\/span>","<strong>C.<\/strong> 5,8 = <span class=\"math-tex\">$\\dfrac{29}{10}$<\/span>"],"correct":"1","level":"2","hint":"<p>\u0110\u1ec3 \u0111\u1ed5i t\u1eeb s\u1ed1 th\u1eadp phân sang phân s\u1ed1 ta vi\u1ebft s\u1ed1 th\u1eadp phân thành phân s\u1ed1 th\u1eadp phân t\u01b0\u01a1ng \u1ee9ng r\u1ed3i rút g\u1ecdn v\u1ec1 t\u1ed1i gi\u1ea3n n\u1ebfu có th\u1ec3.<\/p>","answer":"<p><strong>A.<\/strong> -2,5 = <span class=\"math-tex\">$\\dfrac{-5}{2}$<\/span> (<span style=\"color:#16a085;\">\u0111úng <\/span>vì -2,5 = <span class=\"math-tex\">$\\dfrac{-25}{10}$<\/span> = <span class=\"math-tex\">$\\dfrac{-5}{2}$<\/span> )<\/p><p><strong>B.<\/strong> -4,5 = <span class=\"math-tex\">$\\dfrac{9}{2}$<\/span> (<span style=\"color:#c0392b;\">sai<\/span> vì -4.5 = <span class=\"math-tex\">$\\dfrac{-45}{10}$<\/span> = <span class=\"math-tex\">$\\dfrac{-9}{2}$<\/span> )<\/p><p><strong>C.<\/strong> 5,8 = <span class=\"math-tex\">$\\dfrac{29}{10}$<\/span> (<span style=\"color:#c0392b;\">sai <\/span>vì 5,8 = <span class=\"math-tex\">$\\dfrac{58}{10}$<\/span> =<strong> <\/strong><span class=\"math-tex\">$\\dfrac{29}{5}$<\/span><strong> )<\/strong><\/p><p>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"><strong>A.<\/strong> -2,5 = <span class=\"math-tex\">$\\dfrac{-5}{2}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2021-10-04 00:16:00","option_type":"math","len":0},{"id":"8210","post_id":"4797","mon_id":"1158113","chapter_id":"1158126","question":"<p>Ch\u1ecdn câu <strong>\u0111úng<\/strong><\/p>","options":["<strong>A. <\/strong>-1,25 = <span class=\"math-tex\">$\\dfrac{-5}{8}$<\/span>","<strong>B. <\/strong>2,75 = <span class=\"math-tex\">$\\dfrac{-11}{4}$<\/span>","<strong>C. <\/strong>-4,65 = <span class=\"math-tex\">$\\dfrac{-93}{20}$<\/span>"],"correct":"3","level":"2","hint":"<p>\u0110\u1ec3 \u0111\u1ed5i t\u1eeb s\u1ed1 th\u1eadp phân sang phân s\u1ed1 ta vi\u1ebft s\u1ed1 th\u1eadp phân thành phân s\u1ed1 th\u1eadp phân t\u01b0\u01a1ng \u1ee9ng r\u1ed3i rút g\u1ecdn v\u1ec1 t\u1ed1i gi\u1ea3n n\u1ebfu có th\u1ec3.<\/p>","answer":"<p><strong>A. <\/strong>-1,25 = <span class=\"math-tex\">$\\dfrac{-5}{8}$<\/span> (<span style=\"color:#c0392b;\">sai <\/span>vì -1,25 = <span class=\"math-tex\">$\\dfrac{-125}{100}$<\/span> = <span class=\"math-tex\">$\\dfrac{-5}{4}$<\/span> )<\/p><p><strong>B. <\/strong>2,75 = <span class=\"math-tex\">$\\dfrac{-11}{4}$<\/span> (<span style=\"color:#c0392b;\">sai <\/span>vì 2,75 = <span class=\"math-tex\">$\\dfrac{275}{100}$<\/span> = <span class=\"math-tex\">$\\dfrac{11}{4}$<\/span> )<\/p><p><strong>C. <\/strong>-4,65 = <span class=\"math-tex\">$\\dfrac{-93}{20}$<\/span> (<span style=\"color:#16a085;\">\u0111úng <\/span>vì -4,65 = <span class=\"math-tex\">$\\dfrac{-465}{100}$<\/span> = <span class=\"math-tex\">$\\dfrac{-93}{20}$<\/span> )<\/p><p>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"> <strong>C. <\/strong>-4,65 = <span class=\"math-tex\">$\\dfrac{-93}{20}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2021-10-04 00:22:33","option_type":"math","len":0}]}