672-36=64,1034+78+320+102,.要简便计算!
问题描述：
672-36=64,1034+78+320+102,.要简便计算!
答
答案如下：
672-36-64
=672-(36+64)
=672-100
=572
1034+78+320+102
=(1034+320)+(78+102)
=1354+180
=1534