knrt.net
当前位置:首页 >> 简便计算,11X11一11 >>

简便计算,11X11一11

11X11一11 =11×(11-1) =11×10 =110

11x(111-11)=1100

原式 =2/11x11x13+1/13x11x13 =(2/11x11)x13+(1/13x13)x11 =2x13+1x11 =26+11 =37 供参考。

55×66÷(11×11) =5×11×6×11÷(11×11) =(5×6)×(11×11)÷(11×11) =(5×6)×[(11×11)÷(11×11)] =30×1 =30

99x11 =(100-1)x11 =100x11-11 =1100-11 =1089

=11乘以8+11乘以11+11乘以81 =11乘以(8+11+81) =11乘以100 =1100

99×11+11=(99+1)×11=100×11=1100

25×11×4 =25x4x11 =100x11 =1100

86790解析://貌似有点长(215+311)×15×11=526×5×33=2630×33=263×11×30=(2630+263)×30=2893×30=(2900-7)×30=87000-210=86790

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