2018年人教版小升初数学总复习 计算题解方程和解比例专项
1-0.4x=0.48 x:18=:
x ÷5 =
X =18 + 60% X
3
5 X + 2.5×8=95
4x+
x= 9
÷x =
0.3(2x+1)+3=5.7 40%X+30=80 :=
:x
1 / 7
2.5 :5 =
:X -2X =
= 0.375:X=:60℅
X: 5 =: 0.75:X = :2
1.25:0.2= X:
0.6:4.8=12:X
45:X=18:26
=
3.6:X = 0.48:
3.5:0.7= X:
: =1.2: X
9:0.09= X:0.15 2 / 7
x: =: (3.8- x):7 =2:7
= x : =0.3 :
5(X+3)= 20
7X-3X = 2.042
9×3-1.7X =13.4
1+0.8x=7.2
1.4X-1.6×5 = 1.8 12÷(0.5X-1)=6 3(X+2)=4(X+1) 68-1.2x=65 3 / 7
15-2x-6=8 32x-7x-5x=420
5.4x÷4=1.35 (10-7.5)×x=0.125×8
13.2x-18=13x+9 12﹕X = ﹕ ﹕X =﹕
X﹕5 =1÷3 +x= 7-
X﹕3 = 0.6﹕0.15 18﹕(X-1)=2﹕7
=
x-x=14
=2x
4 / 7
X+5=
X÷=X X += 5 x -x=×45
0.8÷X=5.4÷3 X-X=5
X+=1 X
X-X=5
3.5÷X=5÷4.2 X
(2+1225 )X=15
÷= 0.8X+=1 -X =33 9 X-5 X=38 5 / 7
÷X=3÷4.2
X-=×
=0.6÷X
1-23
9 X=5