171×11÷9怎么简便运算?

2025-06-26 18:14:50
推荐回答(3个)
回答1:

简便计算
171×19÷9
=171÷9x19
=19x(20-1)
=19x20-19x1
=380-19
=361

回答2:

171x(10+1)÷9=
(1710+171)÷9=
1881÷9=209

回答3:

171X11÷9