Bài ôn tập chương 1 - Số hữu tỉ

Home Toán lớp 7 - Sách KNTT Toán lớp 7 - tập 1 Ôn tập chương 1 - Số hữu tỉBài tập cơ bản

{"common":{"save":0,"post_id":"5670","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6964","post_id":"5670","mon_id":"1158532","chapter_id":"1158544","question":"Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n phép tính \u0111úng là<\/p>","options":["A.<\/strong> L\u0169y th\u1eeba → Nhân và chia → C\u1ed9ng và tr\u1eeb","B.<\/strong> L\u0169y th\u1eeba → C\u1ed9ng và tr\u1eeb → Nhân và chia","C. <\/strong>Nhân và chia → C\u1ed9ng và tr\u1eeb → L\u0169y th\u1eeba","D. <\/strong>C\u1ed9ng và tr\u1eeb → Nhân và chia → L\u0169y th\u1eeba"],"correct":"1","level":"1","hint":"","answer":"Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n phép tính là  L\u0169y th\u1eeba → Nhân và chia → C\u1ed9ng và tr\u1eeb<\/p>\u0110áp án \u0111úng là  A.<\/strong> L\u0169y th\u1eeba → Nhân và chia → C\u1ed9ng và tr\u1eeb<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-04-08 08:54:15","option_type":"txt","len":3},{"id":"6965","post_id":"5670","mon_id":"1158532","chapter_id":"1158544","question":"Ch\u1ecdn phát bi\u1ec3u \u0111úng<\/p>","options":["A.<\/strong> Bình ph\u01b0\u01a1ng c\u1ee7a m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 âm là m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 âm","B.<\/strong> Bình ph\u01b0\u01a1ng c\u1ee7a m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 d\u01b0\u01a1ng là m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 âm","C.<\/strong> L\u1eadp ph\u01b0\u01a1ng c\u1ee7a m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 âm là m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 d\u01b0\u01a1ng","D.<\/strong> L\u1eadp ph\u01b0\u01a1ng c\u1ee7a m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 d\u01b0\u01a1ng là m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 d\u01b0\u01a1ng"],"correct":"4","level":"1","hint":"Bình ph\u01b0\u01a1ng là l\u0169y th\u1eeba v\u1edbi s\u1ed1 m\u0169 b\u1eb1ng 2. L\u1eadp ph\u01b0\u01a1ng là l\u0169y th\u1eeba v\u1edbi s\u1ed1 m\u0169 b\u1eb1ng 3.<\/p>L\u0169y th\u1eeba c\u1ee7a m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 d\u01b0\u01a1ng luôn là m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 d\u01b0\u01a1ng.<\/p>L\u0169y th\u1eeba c\u1ee7a m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 âm v\u1edbi s\u1ed1 m\u0169 ch\u1eb5n là m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 d\u01b0\u01a1ng. L\u0169y th\u1eeba c\u1ee7a m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 âm v\u1edbi s\u1ed1 m\u0169 l\u1ebb là m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 âm.<\/p>","answer":"A.<\/strong> Bình ph\u01b0\u01a1ng c\u1ee7a m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 âm là m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 âm  (sai, vì bình ph\u01b0\u01a1ng c\u1ee7a m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 âm là m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 d\u01b0\u01a1ng)<\/p>B.<\/strong> Bình ph\u01b0\u01a1ng c\u1ee7a m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 d\u01b0\u01a1ng là m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 âm (sai, vì bình ph\u01b0\u01a1ng c\u1ee7a m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 d\u01b0\u01a1ng là m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 d\u01b0\u01a1ng)<\/p>C.<\/strong> L\u1eadp ph\u01b0\u01a1ng c\u1ee7a m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 âm là m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 d\u01b0\u01a1ng  (sai,vì l\u1eadp ph\u01b0\u01a1ng c\u1ee7a m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 âm là m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 âm)<\/p>D.<\/strong> L\u1eadp ph\u01b0\u01a1ng c\u1ee7a m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 d\u01b0\u01a1ng là m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 d\u01b0\u01a1ng  (\u0111úng)<\/p>\u0110áp án \u0111úng là  D.<\/strong> L\u1eadp ph\u01b0\u01a1ng c\u1ee7a m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 d\u01b0\u01a1ng là m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 d\u01b0\u01a1ng<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-04-08 09:03:08","option_type":"txt","len":3},{"id":"6968","post_id":"5670","mon_id":"1158532","chapter_id":"1158544","question":"Nh\u1eefng k\u1ebft qu\u1ea3 nào sau \u0111ây là m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 d\u01b0\u01a1ng?<\/p>","options":["A. $(-2)^{2012}$<\/span><\/strong>","B. $(-3,45)^{2023}$<\/span><\/strong>","C. $\\left(\\dfrac{-3}{4}\\right) ^{2021}$<\/span><\/strong>","D.<\/strong> $(-2032,34)^{2040}$<\/span>"],"correct":"[\"1\",\"4\"]","level":"1","hint":"L\u0169y th\u1eeba c\u1ee7a m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 âm v\u1edbi s\u1ed1 m\u0169 ch\u1eb5n là m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 d\u01b0\u01a1ng. L\u0169y th\u1eeba c\u1ee7a m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 âm v\u1edbi s\u1ed1 m\u0169 l\u1ebb là m\u1ed9t s\u1ed1 h\u1eefu t\u1ec9 âm.<\/p>","answer":"A. $(-2)^{2012}$<\/span>  <\/strong>> 0 (vì 2012 là s\u1ed1 ch\u1eb5n)<\/p>B. $(-3,45)^{2023}$<\/span> <\/strong>< 0 (vì 2023 là s\u1ed1 l\u1ebb)<\/p>C. $\\left(\\dfrac{-3}{4}\\right) ^{2021}$<\/span>  <\/strong>< 0 (vì 2021 là s\u1ed1 l\u1ebb)<\/p>D.<\/strong> $(-2032,34)^{2040}$<\/span>  > 0 (vì 2040 là s\u1ed1 ch\u1eb5n)<\/p>Các \u0111áp án \u0111úng là  A. $(-2)^{2012}$<\/span><\/strong>  và  D.<\/strong> $(-2032,34)^{2040}$<\/span><\/span><\/p>","type":"checkbox","extra_type":"classic-checkbox","time":"0","user_id":"131","test":"1","date":"2022-04-08 09:13:38","option_type":"math","len":0}]}