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1.08*9.9怎么脱式计算

1.08×9.9 =1.08×(10-0.1) =1.08×10-1.08×0.1 =10.8-0.108 =10.692 你好,本题已解答,如果满意 请点右上角“采纳答案”。

1.08x9.8 =1.08x(10-0.2) =1.08x10-1.08x0.2 =10.8-0.216 =10.584

(1)1.25×8.37×0.8 =1.25×0.8×8.37,=1×8.37,=8.37;(2)(9-2.35)×0.64=6.65×0.64,=4.256;(3)0.25×32×12.5=(0.25×4)×(8×1.25),=1×10,=10;(4)0.15×1999+0.15 =(1+1999)×0.15,=2000×0.15,=300;(5)0.37×1.4-0.4×0.37=(1....

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