www.gsyw.net > 72x99的简便计算

72x99的简便计算

72*99 =72*(100-1) =72*100-72*1 =7200-72 =7128 你好,本题已解答,如果满意 请点右下角“采纳答案”.

72*99+72=72*(99+1)=72*100=7200

72x99=72x(100-1)=72x100-72x1=7200-72=7128

运用乘法分配律:72X99=72X(100-1)=72X100-72=7200-72=7128

72*99=72*(100-1)=7200-72=7128

72x99十72用简便方法:72x99十72=72x99十72*1=72*(99+1)=72*100=7200

=72x(99+1)=72x100=7200

7200-72

72*99+62=72*(100-1)+62=7200-72+62=7190

72X99用筒便分法计算72X99用筒便方法计算72*99=72*(100-1)=72*100-72*1=7200-72=7128

网站地图

All rights reserved Powered by www.gsyw.net

copyright ©right 2010-2021。
www.gsyw.net内容来自网络,如有侵犯请联系客服。zhit325@qq.com