问题标题:
29.5*1.6+1.95*16怎样简便计算?
问题描述:
29.5*1.6+1.95*16怎样简便计算?
傅雄刚回答:
29.5*1.6+1.95*16
=2.95*16+1.95*16
=(2.95+1.95)*16
=[(3-0.05)+(2-0.05)]*16
=(5-0.1)*16
=5*16-0.1*16
=80-1.6
=78.4
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