括号2.6×0.5+21.5括号除以1.2能简便
5.95÷(1.2+0.5)×5=5.95÷1.7×5=3.5×5=17.5
=(1.3+21.5)/1.2
=22.8/1.2
=19
简便计算2.4Ⅹ0.5÷2.4X0.5?
2.4除以2.4乘0.5乘0.5=1乘0.5乘0.5=0.25
0.48×2.6+26×0.05能不能简便运算?
能简便。0.48×2.6+26×0.05 = 0.48×2.6+2.6×0.5 = 2.6×0.98 = 2.6×1-2.6×0.02 = 2.6-0.052 = 2.548
4.7x0.5x2.6怎样简便计算?
4.7x0.5x2.6怎样简便计算 解:4.7x0.5x2.6 =4.7x1.3 =(5-0.3)x1.3 =5x1.3-0.3x1.3 =6.5-0.39 =6.11
长2.6米直径0.5米它的体积是多少?谢谢
长2.6米直径0.5米它的体积是 2.6×3.14×(0.5÷2)²=0.51025 立方米
X:2.6=0.13:0.5的解答过程?
因为在比例里内项积等于外项之积,所以可以得到0.5x=2.6×0.13,解得x=2.6×0.13÷0.5=0.676
38×2.6x0.5
49.4
2.6×9.5简便计算?
2.6×9.5 =2.6×(10-0.5)=2.6×10-2.6×0.5 =26-1.3 =24.7 希望能帮助到你,谢谢!
2.6×0.6-1.8×0.5的简便运算是什么?
2.6×0.6-1.8×0.5 =2.6×(0.5+0.1)-1.8×0.5 =2.6×0.5+2.6×0.1-1.8×0.5 =(2.6-1.8)×0.5+2.6×0.1 =0.8×0.5+0.26 =0.4+0.26 =0.66
小明在计算一个数除以2.6时把除号误看成乘号得到的结果是3.38这个数是...
依据题意列式计算如下:这个数是:3.38÷2.6=1.3 正确的结果是:1.3÷2.6=0.5
童荀复方: 括号2.6*0.5+21.5括号除以1.2能简便=(1.3+21.5)/1.2=22.8/1.2=19
綦江县18241292872: (2.6*0.5+21.5)/1.2的简便计算是?
童荀复方:(2.6*0.5+21.5)/1.2 =(1.3+21.5)/1.2 =22.8/1.2 =(24-1.2)/1.2 =20-1 =19 问题已解决记的采纳.
綦江县18241292872: 括号2.6+1.65÷0.15括号乘以0.12 - ?
童荀复方: 括号2.6+1.65÷0.15括号乘以0.12=(2.6+1.65÷0.15)*0.12=(2.6+11)*0.12=13.6*0.12=1.632
綦江县18241292872: 括号2.1+1.68括号除以0.7的简便方法 - ?
童荀复方: (2.1+1.68)÷0.7=(2.1+1.4+0.28)÷0.7=2.1÷0.7+1.4÷0.7+0.28÷0.7=3+2+0.4=5.4
綦江县18241292872: 0.5*括号3/2+6/25括号能简算的要简算 - ?
童荀复方: 0.5*括号3/2+6/25括号能简算的要简算0.5*括号3/2+6/25括号=0.5*(3/2+6/25)=1/2*3/2+1/2*6/25=3/4+3/25=3*29/100=87/100
綦江县18241292872: 括号2.5减2.5乘以0.6括号除以0.4求简易计算 - ?
童荀复方: 括号2.5减2.5乘以0.6括号除以0.4求简易计算 括号2.5减2.5乘以0.6括号除以0.4 =(2.5-2.5*0.6)÷0.4 =2.5*(1-0.6)÷0.4 =2.5*0.4÷0.4 =2.5
綦江县18241292872: 括号3.2+2.3括号÷0.5脱式计算 - ?
童荀复方: 15.32*4+ 4.68÷0.5=61.28+9.36=70.64 不能简便
綦江县18241292872: 括号3.2*0点15 1点八括号除以0.6怎样简便 - ?
童荀复方: 括号3.2*0点15 1点八括号除以0.6怎样简便 括号3.2*0点15 1点八括号除以0.6 =(3.2*0.15+1.8)÷0.6 =(0.48+1.8)÷0.6 =0.48÷0.6+1.8÷0.6 =0.8+3 =3.8
綦江县18241292872: 括号278 - 78括号除以括号35+15括号简便方法怎么做 - ?
童荀复方: 括号278-78括号除以括号35+15括号简便方法怎么做 (278-78)÷(35+15) =270÷50 =270÷10÷5 =27÷5 =5.2
綦江县18241292872: 括号六点4*12点5*0点五括号除以二点5*1点6*1点二括号 - ?
童荀复方: 你好!根据题意列算式为: (6.4*12.5*0.5)÷(2.5*1.6*1.2) =40÷4.8 =8.33333 =8.3(保留二位小数) 希望可以帮上你请采纳谢谢!