1.98+2.64+1.02+1.36如何简便计算
问题描述:
1.98+2.64+1.02+1.36如何简便计算
答
1.98+2.64+1.02+1.36
=(1.98+1.02)+(2.64+1.36)
=3+4
=7
解题思路就是凑整.另学习愉快