mwfd.net
当前位置:首页 >> 45乘55加55乘55简便计算 >>

45乘55加55乘55简便计算

45x45+55x55=45x45+55x(45+10)=45x45+55x45+55x10=45x(45+55)+550=45x100+550=4500+550=5050

原式=2*45*55=90*55=4950.

45*55+45*55=(45+45)*55=90*55=90*50+90*5=4500+450=4950

45*55+45*55 =45*(55+55) =45*(100+10) =45*100+45*10 =4500+450 =4950

5500

相当与55乘100

55乘54加45乘54用简便方法计算55乘54加45乘54=54*(55+45)=54*100=5400

45*55+55*55=55x(45+55)=55x100=5500

(55+45)*45=4500

55乘55+55乘4655=55*(55+46-1)=55*100=5500

90858.net | fpbl.net | famurui.com | gyzld.cn | beabigtree.com | 网站首页 | 网站地图
All rights reserved Powered by www.mwfd.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com