3.95*6-1.45*6+(7/9-5/6+7/18)*18
问题描述:
3.95*6-1.45*6+(7/9-5/6+7/18)*18
答
3.95*6-1.45*6+(7/9-5/6+7/18)*18
=23.7-8.7+7/9*18-5/6*18+7/18*18
=15+14-15+7
=14+7
=21
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