1÷0.25×(1.28÷3.2)用简便方法算
问题描述:
1÷0.25×(1.28÷3.2)用简便方法算
答
1÷0.25×(1.28÷3.2)
=(1.28x1)÷(3.2x0.25)
=1.28÷(0.8x4x0.25)
=1.28÷0.8
=16