
22初一近似數(課中)
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
Kangai Fong
Used 1+ times
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10 questions
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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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