42X99十42的简便运算怎么运算?

2024-12-31 18:52:53
推荐回答(2个)
回答1:

42X99十42的简便运算怎么运算?
42X99十42
=42*(99+1)
=42*100
=4200

回答2:

42X99+42
=42x(99+1)
=42x100
=4200