58×42+58×58的简便计算

2024-10-31 04:24:07
推荐回答(3个)
回答1:

58×42+58×58
=58×(42+58)
=58×100
=5800

回答2:

=58x(42+58)
=58x100
=5800

回答3:

=58x(42+58)
=58x100
=5800
乘法的结合律