lzth.net
当前位置:首页 >> 33.33*66.66+44.44*99.99 巧算 >>

33.33*66.66+44.44*99.99 巧算

33.33*66.66+44.44*99.99=99.99*22.22+44.44*99.99=99.99*(22.22+44.44)=99.99*66.66=(100-0.01)*66.66=100*66.66-0.01*66.66=6666-0.6666=6665.3334

35.33-(15.33+3.44)-6.66 =35.33-15.33-3.44-6.66 =20-(3.44+6.66) =20-(3.44+6.56+0.1) =20-(10+0.1) =20-10-0.1 =10-0.1 =9.9 谢谢,请采纳

11的n次方 先把11提出来

44*(44+66) =44*100+44*10 =4400+440 =4840

=66*22+55*44+55*66-66*77 =66*-55+55*44+55*66 =55*44 =11*5*11*4 =121*20 =2420

46

99*22+88*33+77*44+66*55 =9×11×2×11+8×11×3×11+7×11×4×11+6×11+5×11 =11²×(18+24+28+30) =121×100 =12100 谢谢采纳!

(22×33+33×44)/(55×66+66×77) =[33×(22+44)]/[66×(55+77)] =(33×66)/(66×132) =33/132 =1/4 很高兴为您解答,祝你学习进步!如果有其他问题请另发或点击向我求助,请谅解,谢谢! 有不明白的可以追问!如果您认可我的回答。请点击下面的【选为满...

3453

187

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