3-5⼀7-5⼀7÷(5⼀9)用简便运算?

2025-03-06 22:39:07
推荐回答(4个)
回答1:

简便计算
3-5/7-5/7÷(5/9)
=3-5/7-9/7
=3-(5/7+9/7)
=3-2
=1

回答2:

=3-5/7-5/7×9/5
=3-5/7-9/7
=3-(5/7+9/7)
=3-2=1

回答3:

3-5/7-5/7÷(5/9)
=3-5/7-9/7
=3-(5/7+9/7)
=3-2
=1

回答4:

题主,用简便运算如下:
3-5/7-5/7×9/5
=3-5/7-9/7
=3-2
=1