www.whkt.net > 五分之四乘以七点七加三点三乘以零点八减80%的简便运算是什么

五分之四乘以七点七加三点三乘以零点八减80%的简便运算是什么

五分之四乘以七点七加三点三乘以零点八减80%的简便=0.8*7.7+3.3*0.8-0.8 =0.8*(7.7+3.3-1)=0.8*(11-1)=0.8*10 =8

三点七五加零点八八乘以三十七又二分之一 简便运算五点六乘以三又四分之三减四又五分之二乘以三点七五加零点八八乘以三十七又二分之一 =

八八乘以三十七又二分之一 简便运算=5.6*3.75-4.4*3.75+8.8*3.75 =(5.6-4.4+8.8)*3.75 =10*3.75 =37.5

七十七乘五分之四加二十三乘零点八 简便算法77×4/5 +23×0.8 =77×0.8+23×0.8 =(77+23)×0.8 =100×0.8 =80

三点七八乘零点八加三点七八乘零点二用简便计算3.78×0.8 + 3.78×0.2= 3.78×(0.8+0.2)= 3.78×1= 3.78 ~ 满意请采纳

四点八七乘以七点三是加上四十八点七乘以零点二六六能计算过程如下:4.87*7.34+48.7*0.266 =4.87*7.34+4.87*2.66 =4.87*(7.34+2.66)=4.87*10 =48.7

三点七乘八十三加零点八三乘以六十三的简便计算3.7×83+8.3×63=3.7×83+6.3×83=(3.7+6.3)×83=10×83=830

三点八七加二点五乘一点零八减零点三六五简便运算怎么3.87+2.5×1.08-0.365=3.87+2.7-0.365=6.57-0.365=6.205

五分之四乘以七点七加三点三乘以零点八减零点八五分之四乘以七点七加三点三乘以零点八减零点八 扫码下载作业帮拍照答疑一拍即得 答案解析 查看更多

七十七乘五分之四加二十三乘零点八 简便算法77×4/5 +23×0.8=77×0.8+23×0.8=(77+23)×0.8=100×0.8=80

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