一个数比7.5大1⼀2,另一个数比9⼀10小0.7,这两个数相差多少?

2025-04-06 05:14:58
推荐回答(2个)
回答1:

(7.5+1/2)-(7/10-0.7)
=8-0
=8

回答2:

解答:
(7.5+1/2)-(7/10-0.7)

=8-0

=8