(483一75)一(283一95)简便运算?

2025-03-26 09:13:11
推荐回答(2个)
回答1:

=483-283-75+95
=200+20
=220

回答2:

(483-75)-(283-95)
=483-75-283+95
=(483-283)+(95-75)
=200+20
=220