0.4乘括号1.7×0点几括号除以0点一五

2025-05-01 02:10:40
推荐回答(1个)
回答1:

脱式计算
0.4×(1.7-0.8)÷0.15
=0.4×0.9÷0.15
=0.36÷0.15
=2.4