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0.125x16用简便方法计算怎么写

0.125x16 =0.125x8x2 =1x2 =2

=0.125×5.5×7×8×2×5 =(0.125×8)×(5.5×7)×(2×5) =1×37.5×10 =375

道题(0.25 0.125)x16 =(0.25x4)x(0.125x4) =1x1/2 =1/2

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