(2.5+0.8×12.4)÷6等于多少用简便算法计算?

2025-06-21 12:09:52
推荐回答(1个)
回答1:

(2.5+0.8×12.4)÷6的简便算法是
=(2.5+0.8×12.4)×1/6
=2.5×1/6+0.8×12.4×1/6
=2.07