ppts.net
当前位置:首页>>关于脱式计算(能简算的要简算)5.9X101-5.9的资料>>

脱式计算(能简算的要简算)5.9X101-5.9

5.9*(101-1)=590

解:原式=4.54×(101-1) =4.54×100 =454

原式=(1-0.04)×(100+1) =100+1-4-0.04 =96.96

=9.43x(100+1) =943+9.43 =952.43

6.23x101用脱式计算用简便 =6.23x(100+1) =6.23x100+6.23 =623+6.23 =629.23

23x101 =23×(100+1) =23×100+23×1 =2300+23 =2323

8.8x101-8.8 =8.8x101-8.8x1 =8.8x(101-1) =8.8x100 =880

72x101 =72x100+72 =7200+72 =7272

7.69×101 =7.69×(100+1) =7.69×100+7.69×1 =769+7.69 =776.69

10.01x101-10.01能用简便计算 10.01x101-10.01 =10.01*(101-1) =10.01*100 =1001

网站首页 | 网站地图
All rights reserved Powered by www.ppts.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com