48乘以0.25乘以1.25(简便计算)
问题描述:
48乘以0.25乘以1.25(简便计算)
答
48×0.25×1.25
=(40+8)×0.25×1.25
=40×0.25×1.25+8×0.25×1.25
=12.5+2.5
=15