28.67×67+3.2×286.7+573.4×0.05
问题描述:
28.67×67+3.2×286.7+573.4×0.05
简便计算及答案
答
286.7*6.7+286.7*3.2+286.7*0.1
=286.7(6.7+2.3+0.1)
=2867
*为乘号