(1.25 2.5)ᠧ0.8的简便方法

2025-02-26 13:27:16
推荐回答(2个)
回答1:

漏掉“+”了吧?
(1.25+ 2.5)x0.8
=1.25x0.8+2.5x0.8
=1+2
=3

回答2:

(1.25+ 2.5)✘0.8
=1.25x8+0.25x8
=10+2
=12
希望能帮到你!