45.75减括号15.75减3.87括号简便运算?

2025-06-29 00:57:18
推荐回答(2个)
回答1:

45.75一(15.75一3.87)
=45.75一15.75+3.87
=30+3.87
=33.87

回答2:

45.75-(15.75-3.87)
=30+3.87
=33.87