九点4×1⼀4加0.25乘以五分之三简便计算

九点4×1/4加0.25乘以五分之三简便计算
2024-11-22 15:57:13
推荐回答(1个)
回答1:

9.4×1/4+0.25×3/5
=(9.4+3/5)×0.25
=10×0.25
=2.5