beabigtree.com
当前位置:首页>>关于99x55 简便计算的资料>>

99x55 简便计算

99x55=100x55-55=5500-55=5445

99x55 =(100-1)x55 =100x55-1x55 =5500-55 =5445

99x55+55=99x55+55X1=55(99+1)=5500

=(99+1)*55 =100*55 =5500

简便计算过程方法如下解:33*55+99*15=33*55+33*3*15=33*(55+45)=33*100=3300

99x55+35=(100-1)x55+35=100x55-1x55+35=5500-55+35=5500-(55-35)=5500-20=5480

99x55+55=99x55+1x55=55x(99+1)=55x100=5500希望能帮到你,祝学习进步

102x30=100*30+2*30=3000+60=306099x55=100*55-55=5500-55=5445125x16=125*8*2=1000*2=200018x15=18*15=18*5*3=90*3=27036x250=9*(4*250)=9*1000=900013x125x8=13*(125*8)=13*1000=13000

44+99*49+55=(44+55)+99*49=99+99*49=99*(1+49)=99*50=4950

99x22+88x33+77x44+66x55 =11*9*2+8*3+7*4+6*5=11*18+24+28+30 =11*100 =1100

sytn.net | zmqs.net | 4405.net | nwlf.net | dzrs.net | 网站首页 | 网站地图
All rights reserved Powered by www.beabigtree.com
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com