计算下面这道题(要简算)5.6*69.32+138.64*0.05+693.2*0.43
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计算下面这道题(要简算)
5.6*69.32+138.64*0.05+693.2*0.43
5.6*69.32+138.64*0.05+693.2*0.43
=5.6*69.32+69.32*2*0.05+69.32*10*0.43
=5.6*69.32+69.32*0.1+69.32*4.3
=69.32*(5.6+0.1+4.3)
=69.32*10
=693.2