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標題:

Error & Estimation

發問:

A piece of wire 2.5 m long correct to the nearest 0.1 m is cut into small pieces of 5 cm. long correct to the nearest cm. Can we get 44 pieces small wire after cutting? Please explain your answer.

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最佳解答:

A piece of wire 2.5 m long correct to the nearest 0.1 m: 2.45m 44 pieces small wire Therefore, we can get 44 pieces small wire after cutting. 2014-06-08 18:15:16 補充: 2.45m
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