简便计算72*99
来源：学生学帮网 编辑：学帮网 时间：2024/05/30 10:05:32
简便计算72*99
72*99
=72×（100-1）
=72×100-1×72
=7200-72
=7128
72x99
=72x100-72
=7200-72
=7128
72x99
=7200-72
=7128
简便计算72*99
72*99
=72×（100-1）
=72×100-1×72
=7200-72
=7128
72x99
=72x100-72
=7200-72
=7128
72x99
=7200-72
=7128