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
鞍山千山-十年磨一剑打一成语
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=
2
:
3
11
3
x
÷5 =
3
X =18 + 60% X
3
5
X + 2.5×8=95
4
x
+
1
2
x
= 9
34
3
5
÷
x
=
6
7
0.3(2x+1)+3=5.7
40%X+30=80
5
8
:
3
5
=
2
5
:
x
2.5 :5 =
111
:X -2X =
224
1.6X1
=
0.375:X=:60℅
6
2.4
X:
5 =
18
30
:
1
2
0.75:X =
1
1
4
:2
1.25:0.2= X:
1
3
5
0.6:4.8=12:X
45:X=18:26
20
1.40.4
x
=
15
3.6:X =
0.48:
3
25
3.5:0.7=
X:
2
7
8
21
3
:
4
=1.2: X
9:0.09= X:0.15
x:
131
=: (3.8- x):7
=2:7
20
4
5
0.8755
=
x : =0.3 :
X5
5(X+3)= 20
7X-3X = 2.042
9×3-1.7X =13.4
1+0.8x=7.2
714
1.4X-1.6×5 = 1.8
÷(0.5X-1)=6
3(X+2)=4(X+1)
68-1.2x=65
12
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 =
1
8
﹕
1
4
1
6
﹕X
=
4
9
﹕
2
3
X﹕5 =1÷3
3
17
5
+
1
4
x=
20
7-
X﹕3 = 0.6﹕0.15
18﹕(X-1)=2﹕7
0.25
1.25
=
1.6
X
x-
2
5
x=14
2
3
=2x
112
351
X+5=X X += 5
x -x=×45
583
3
25
1711
X÷= 0.8÷X=5.4÷3
X-X=5
2
11
3
4
X+
1
2
=1
X
11
2
X-
3
X=5
3.5÷X=5÷4.2 X
(2+
1
=
22
5
)X
15
÷
17
2
=
11
0.8
3
4
X+
1
2
=1
-
9
20
X =33
9 X-5
X=
3
8
2
3
÷X=3÷4.2 353
4
X-
8
=
4
×
1
2
8
21
=0.6÷X
1-
2
X=
3
95
X-
X+
121755
X= 8X+=
5X-=
33
93612
1
74
X=
2
X+25%=10 7.8×3X =3.6
93
X÷1.98=0.4
1
X+
2
2
3
X=14
7.2x-5.4x=25.2
9
0.375:
16
17<
br>
:2
2
3
4.5-X)×0.375=0.75
10:
48
5
:0.8
×3-1.7x=13.4
6.4
0.12:1.5
X-0.52 X=3.2×0.15
0.6×(x-0.6)=0.6
21
21
67
:
9
67
3
20
17
(
1314
0.25
6(
2.1)18
(3
)0.430
12325
(107.5)
0.1258
32
7.2
48
1.2
5
4
5(0.1
3.5)1
:9
25
3
:
6
x:
2
3
=60:5
1
3
1
4
2
3
2
1
5
1
5
81
8
:
26
5
(
9
13
45)
:
7x+
2
5
=2.4
59
0.75
0.251
5
6
14
5
5
0.5
40.251.25
5x-20%x=19.2