729-(283 129)简便运算?

2025-03-22 00:11:48
推荐回答(2个)
回答1:

729-(283 129)中间是加号吗?
729-(283+129)

=729-283-129
=729-129-283
=600-283
=317

回答2:

729-(283+129)
=729-129-283
=600-283
=317