用简便方法计算41×99
问题描述:
用简便方法计算41×99
答
41×99
=41x(100-1)
=41x100-41x1
=4100-41
=4059
用简便方法计算41×99
41×99
=41x(100-1)
=41x100-41x1
=4100-41
=4059