Question

17×3.7+77×0.9简便计算？

Answer 1

因知尘为搭扒禅77×0.9=0.9×（17+60）=0.9×17+0.9×60，所以原式等此猜于17×3.7+17×0.9+54=17×（3.7+0.9）+54=132.2

Answer 2

17×3.7+77×0.9
=17×(4－0.3)+77×(1－0.1)
=17×4－禅伍17×0.3+77－7.7
=68－耐袭谨5.1+77+7.7
=(68+77)+(7.7－昌基5.1)
=145+2.6
=147.6

Answer 3

根据运算法则先乘除后加减，得
17×3.7+77×0.9=62.9+69.3=132.2

Answer 4

解：原式桥搜=17×（敏念历4-0.3）+77×（1-0.1）高棚
=17×4-17×0.3+77-7.7
=68+77-（5.1+7.7）
=145-12.8
=132.2

Answer 5

这条问题对应的回答是
等于62.9+69.3=132.2
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