2011+5[300-(17-7)^2]

2 câu trả lời

$2011+5\left[300-\left(17-7\right)^2\right]$

$=2011+5\left[300-100\right]$

$=2011+5\cdot \:200$

$=2011+1000$

$=3011$

 

Đáp án + Giải thích các bước giải:

`2011 + 5 . [300 - (17 - 7)^2]`

`= 2011 + 5 . [300 - 10^2]`

`= 2011 + 5 . [300 - 100]`

`= 2011 + 5 . 200`

`= 2011 + 1000`

`= 3011`

Câu hỏi trong lớp Xem thêm

I. Choose the words whose underlined part is pronounced differently from that of the others in each group. 1. A. bed B. setting C. decide D. get 2. A. easy B. eat C. learn D. tea 3. A. sit B. in C. if D. fine 4. A. child B. watch C. chin D. school 5. A. come B. no C. open D. home 6. A. theater B. there C. through D. three 7. A. brother B. breath C. either D. clothes 8. A. clip B. give C. twice D. stupid 9. A. favorite B. animal C. channel D. programme 10. A. studio B. documentary C. cute D. industry /ˈɪn.də.stri/ 11. A. when B. where C. best D. detective 12. A. weather B. newsreader C. teaching D. repeat 13. A. clumsy B. cute C. but D. just 14. A. earth B. thanks C. feather D. theater 15. A. the B. think C. with D. they/ð/. 16. A. something B. theatre C. neither D. monthly 17. A. other B. thinking C. healthy D. birthday 18. A. Thailand B. weatherman C. anything D. Thanksgiving 19. A. earth B. through C. both D. there 20. A. growth B. three C. feather D. thing 21. A. this B. think C. thank D. thieves 22. A. gather B. bathe C. birthday D. weather 23. A. tooth B. breathe C. through D. earth 24. A. thirty B. than C. therefore D. those 25. A. mouth B. Thursday C. nothing D. worthy 26. A. both B. teeth C. smooth D. fourth 27. A. weather B. wealthy C. clothing D. bathing 28. A. though B. thank C. throw D. thin 29. A. southern B. neither C. thus D. third 30. A. author B. those C. width D. think Lâu lâu mới đặt câu hỏi ko cần làm hết đou ít nhất 20 câu nha!🙃

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