简便运算567+98要写过程急急急急
问题描述:
简便运算567+98要写过程急急急急
答
=567+(100-2)
=(567+100)-2
=667-2
=665
简便运算567+98要写过程急急急急
=567+(100-2)
=(567+100)-2
=667-2
=665