2.6×0.7×0.8的简便计算

2.6×0.7×0.8的简便计算
2025-06-26 08:58:09
推荐回答(1个)
回答1:

2.6×0.7×0.8
=(2.5+0.1)×0.8×0.7
=2.5×0.8×0.7+0.1×0.8×0.7
=1.4+0.056
=1.456