2.6+26×9.9的简便运算怎么算?

2024-12-02 06:27:50
推荐回答(2个)
回答1:

用乘法分配律简算
原式=2.6+2.6×99
=2.6×(1+99)
=2.6×100
=260

回答2:

=2.6+2.6×99
=2.6×(1+99)
=2.6×100
=260