3.6x42.3x3.75-12.5x0.423x28五年级
4个回答
3.6x42.3x3.75-12.5x0.423x28
=4.23*(36*3.75-5*7)
=4.23*5*(36*0.75-7)
=42.3/2*(9*3-7)=42.3*10
=423
相关问题
计算:3.6×42.3×3.75-12.5×0.423×28=______.
计算:3.6×42.3×3.75-12.5×0.423×28=______.
0.8-X-8.5*2=7 X-0.75X+1.6=12 5.6+X4X=17.28 40+X=468 X+0.2X=3
3.6×42.3×3.75-12.5×0.423×16 要简便运算!
12.5x-0.75x+3=7.3-1.5x
解下面的比例.(l)x:12=0.5: 1 3 (2) 15 x = 3.5 28 (3)x:6=0.7:0.28 (4
(2011•北海模拟)解方程或比例 ①[1.75/3]=[x/6] ②x-[3/5]x=[6/5] ③42:[3/5]=
解比例.X:14=6:28 [0.75/x=0.253] [3/8:13=x:16] 0.5:0.25=x:6 [x/0
12.5x-0.75x+3=7.3-1.5x怎么解
解方程 (1)X×2+5=15 (2)42x+28x=140 (3)X-0.8X=6.