简便计算:4.6×2.7+23×0.56-2.3
问题描述:
简便计算:4.6×2.7+23×0.56-2.3
答
4.6×2.7+23×0.56-2.3
=2.3×5.4+2.3×5.6-2.3
=2.3×(5.4+5.6-1)
=2.3×10
=23