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脱式计算9.85x45+5.5x98.5

脱式计算 9.85x45+5.5x98.5 =9.85x45+55x9.85 =9.85x(45+55) =9.85x100 =985

7.8乘10o

0.75×98 =0.75×(100-2) =0.75×100-0.75×2 =75-1.5 =73.5 你好,本题以解答,如果满意,请点右下角“采纳答案”,支持一下。

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