1.25*0.7*0.9*0.8简便运算
1.25*0.7*0.8简便运算
0.7乘1.25乘0.9简便计算 急急急!!!!!!!!!!
回答:0.7乘1.25乘0.9=(0.8-0.1)(0.8+0.1)*1.25=0.8*0.8*1.25-0.01*1.25=0.8-0.0125=0.7875 2018-11-24
1.25*0.7*0.8的简便计算
1.25*0.7*0.8的简便运算
1.25*0.9*0.8拖试怎样计算简便
2个答案 10个赞
1.25*0.7*0.8简便怎么算
1.25*7.45*0.8的简便运算
问:1.25*7.45*0.8的简便运算
1.25*9.1*0.7+1.25*9.1*0.1的简便运算
回答:1.25*9.1*0.7+1.25*9.1*0.1=1.25*9.1*(0.7+0.1)=1.25*9.1*0.8=(1.25*0.8)*0.9=1*0.9 =0.9 2012-7-31
0.1*0.2*0.3*0.4*0.5*0.6*0.7*0.8*0.9简便运算
问:0.1*0.2*0.3*0.4*0.5*0.6*0.7*0.8*0.9简便运算 小学五年级的动脑筋题
回答:0.1+0.2+0.3+0.4+0.5+0.6+0.7+0.8+0.9 =(0.1+0.9)+(0.2+0.8)+(0.3+o.7)+(0.4+0.6)+0.5 =1+1+1+1+o.5 =4.5 2013-9-27