17×11⼀20-1⼀20×17的简便计算怎么算?

2025-03-23 07:15:58
推荐回答(5个)
回答1:

17×11/20-1/20×17
=17×(11/20-1/20)
=17×1/2
=8.5

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回答2:

17×11/20-1/20×17
=17×(11/20-1/20)
=17×1/2
=17/2

回答3:

17×11/20-1/20×17=17/20×(11-1)
=17/20×10=17/2

回答4:

17×(11/20-1/20)
=17×1/2
=17/2

回答5:

原式=17/20*(11–1)
=17/20*10
=17/2