简算41.2×8.1+4.12×23-412×0.04

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简算41.2×8.1+4.12×23-412×0.04简算41.2×8.1+4.12×23-412×0.04简算41.2×8.1+4.12×23-412×0.0441.2×8.1+4.12×23-41

简算41.2×8.1+4.12×23-412×0.04
简算41.2×8.1+4.12×23-412×0.04

简算41.2×8.1+4.12×23-412×0.04
41.2×8.1+4.12×23-412×0.04
=41.2×8.1+41.2×2.3-41.2×0.4
=41.2×(8.1+2.3-0.4)
=41.2×10
=412