2,.44—1.8)除0.4乘20
问题描述:
2,.44—1.8)除0.4乘20
答
= (2.44-1.8)×20÷0.4
= (2.44-1.8)×50
= (2.44-1.8)×100÷2
=(244-180)÷2
=64÷2
=32