8×(1.25+ 0.25)×0.4简便运算

2025-06-28 07:00:18
推荐回答(1个)
回答1:

8×(1.25+ 0.25)×0.4
=8×1.25×0.4+8×(0.25×0.4)
=4+0.8
=4.8