原式=-3.14×35.2+3.14×(-46.6)-3.14×18.2
=-3.14(35.2+46.6+18.2)
=-3.14×100
=-314.
故答案是:-314.
用简便方法计算:-3.14×35.2+6.28×(-23.3)-1.57×36.4=_.
用简便方法计算:-3.14×35.2+6.28×(-23.3)-1.57×36.4=______.
数学人气:883 ℃时间:2020-03-23 23:16:21
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