简便计算3.28*99+2.38
问题描述:
简便计算3.28*99+2.38
答
3.28*99+2.38
=3.28*100-0.9
=327.1
原版禁止抄袭
答
3.28*99+3.28
=3.28*(99+1)
=3.28*100
=328