2.5与0.8的积,乘2.5除0.8的商,积是多少?

问题描述:

2.5与0.8的积,乘2.5除0.8的商,积是多少?

2.5×0.8×2.5÷0.8
=2.5×2.5×(0.8÷0.8)
=6.25×1
=6.25