(3.5-3.5×0.6)÷0.7怎么计算

2024-12-16 05:28:55
推荐回答(2个)
回答1:

(3.5-3.5×0.6)÷0.7=3.5×(1-0.6)÷0.7=(3.5÷0.7)×(1-0.6)=5×0.4=2

回答2:

(3.5-3.5×0.6)÷0.7
=5-5x0.6
=5-3
=2