(0.4+0.8)x0.25x1.25简 便运算

(0.4+0.8)x0.25x1.25简 便运算
2024-11-28 06:26:39
推荐回答(1个)
回答1:

原式=1.2×0.25×1.25
=0.3×1.25×4×0.25
=0.375