4.8×17.4×6.25减37.5×0.174×5.3+0.21求算法
问题描述:
4.8×17.4×6.25减37.5×0.174×5.3+0.21求算法
答
4.8×17.4×6.25减37.5×0.174×5.3+0.21
=4.8×17.4×6.25-3.75×17.4×0.53+0.21
=(4.8×6.25-3.75×0.53)×17.4+0.21
=(30-3.75×0.53)×17.4+0.21
=28.0125×17.4+0.21
=476.4225