13.8/(1.38*0.2)简便计算 2.94*10.1简便计算
问题描述:
13.8/(1.38*0.2)简便计算 2.94*10.1简便计算
答
13.8/(1.38*0.2)
=13.8÷1.38÷0.2
=10÷0.2
=50
2.94*10.1
=2.94×(10+0.1)
=2.94×10+2.94×0.1
=29.4+0.294
=29.694