22初一近似數(課中)

22初一近似數(課中)

7th Grade

10 Qs

quiz-placeholder

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22初一近似數(課中)

22初一近似數(課中)

Assessment

Quiz

Mathematics

7th Grade

Practice Problem

Hard

Created by

Kangai Fong

Used 1+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 15 pts

下列各數為準確數的是

七年級共有821人

小亮的體重約為65kg

北京市有2154萬人

月球到地球的距離是38萬千米

2.

MULTIPLE CHOICE QUESTION

3 mins • 15 pts

017年5月18日,新華社電訊:我國利用世界唯一的藍鯨1號,在南海實現了可燃冰(即天然氣水合物)的安全可控開採。據介紹,藍鯨1號擁有27354台設備,約40000根管路,約50000個MCC報驗點,電纜拉放的長度估計為1200km。其中準確數是

27354

40000

50000

1200

3.

MULTIPLE CHOICE QUESTION

3 mins • 15 pts

下列近似數的結論不正確的是

0.1(精確到0.1)

0.05(精確到百分位)

0.50(精確到百分位)

0.100(精確到0.1)

4.

MULTIPLE CHOICE QUESTION

3 mins • 15 pts

已知地球距離月球表面約383900km,那麼這個距離(精確到千位)用科學記數法表示為

5.

FILL IN THE BLANK QUESTION

3 mins • 15 pts

用四舍五入法對5.649取近似數(精確到0.1)的結果是

6.

FILL IN THE BLANK QUESTION

3 mins • 15 pts

用四舍五入法對1999.508取近似數(精確到個位),得到的近似數是

7.

FILL IN THE BLANK QUESTION

3 mins • 10 pts

用四舍五入法將36.547精確到百分位的近似數是

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