2.5x7.5÷0.25x25简便算怎么做?

2024-11-29 22:52:42
推荐回答(3个)
回答1:

2.5 × 7.5 ÷ 0.25 × 25
= 2.5 ÷ 0.25 × 7.5 × 25

= 10 × 7.5 × 25

= 75 × 25

= 25 × 25 × 3
= 625 × 3

= 1875

回答2:

2.5×7.5÷0.25×25
=10×7.5×25
=75×25
=(50+25)×25
=625+1250
=1875

回答3:

同一级运算可以变换顺序的,可以先算2.5÷0.25=10,再算10×7.5=75,最后算75×25=1875。