4.9*1.2+8.8*5.1如何简算
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4.9*1.2+8.8*5.1如何简算
4.9*1.2+8.8*5.1
=(5.1-0.2)*1.2+8.8*5.1
=5.1*(1.2+8.8)-0.2*1.2
=5.1*10-0.24
=51-0.24
=50.76
4.9*1.2+8.8*5.1如何简算
4.9*1.2+8.8*5.1
=(5.1-0.2)*1.2+8.8*5.1
=5.1*(1.2+8.8)-0.2*1.2
=5.1*10-0.24
=51-0.24
=50.76