用简便方法计算:2^10-2^9-2^8
问题描述:
用简便方法计算:2^10-2^9-2^8
答
2^10-2^9-2^8
=2^9*(2-1)-2^8
=2^9-2^8
=2^8*(2-1)
=2^8
=256