7×0.125×32×0.2×2.5

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摘要 7×0.125×32×0.2×2.5=7×0.125×8×4×0.2×2.5=7×（0.125×8）×（4×2.5）×0.2=7×1×10×0.2=14

咨询记录 · 回答于2023-01-07

7×0.125×32×0.2×2.5

7×0.125×32×0.2×2.5=7×0.125×8×4×0.2×2.5=7×（0.125×8）×（4×2.5）×0.2=7×1×10×0.2=14

1.25×3×8×40×0.25×5×20

1.25×3×8×40×0.25×5×20=（1.25×8）×（40×0.25）×3×（5×2）=10×10×3×10=3000

12.5×4.56×0.8

12.5×4.56×0.8=（12.5×0.8）×4.56=10×4.56=45.6

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