北师大版五年级数学下册解方程100题
电梯行业-港珠澳大桥什么时候通车
解方程
5121
1. x = 2.
÷x = 3. 4x＋7.5＝13
812
4. x－0.6 x＝5
7.
x÷
1
2
=
3
4
10.
20%χ－
14
5
=
5
13. x -
1
4
x = 24
16.
532
8
x
-
5
=
5
36
5.
5
6
÷x＝3.3
8.
1
4
χ＋
11
3
χ=
1
6
11. x -
3
8
x =20
14. 4
x +
1
2
x = 9
17.
1
3
x +
1
4
x =364
6.
4
5
x =10
9.
8×1
37
4
－
15
x =7
12.
2
x =
43
59
×
8
15.
5
9
+ 2 x =
2
3
18. （1－
19
9
）x =
8
19.
3
22
35
2
x =20×
20.
x－ x =12 21. 7 x－
=
5
4
22.
x－
1
4
x =
1
9
25.
111
6
a+
3
=
2
28. 8.65+
11
3
-a
+
6
=0
31.
4
5
x =
18
25
35
23. 4 x＋7.5＝13
26. x＋3x =24
29. x
-
1
5
x =20
32.
x－
1
3
x＝12
12
3
24.
9.8-2 x =3.8
27.
11
3
x＋
2
x＝5
30.
4
9
x =36
33. 3
x－
17
8
＝
16
4165
1
34. x =
35. x - x =15 36. x÷= 0.6
5158
2
11
37.
15 x +6 x = 168
38. x - = 39. 2 x +5 = 40
40. 3.5 x = 140
43. 5－
21
3
x =
3
46. x ÷
5
8
=
10
17
49. 8×（x－
35
4
）=
4
42
41. 20% x＝30
44. 2
x -
4
3
x =
1
2
47.
x÷
11
8
=
16
33
50. （１－
2
4
）x＝１４
42. 5
x－3×
10
7
=
5
7
45.
1.5
x =2.25
48.
5
8
x－30% x＝
7
20
51. 37.5＋20%
x＝69.5
52. x -
714
x = 53. 4.2
×
3
—
3x = 5.1 54.
13.7
—
x = 5.29
1525
55.
114
9
x
=
2
3
56. 20%
x－
5
=
5
58. 1÷2 x =
1
2
59.
5105
7
－
21
x =
14
61.
x－
5
8
x =15 62. x×20% = 20
64. 4（4 x－1）=3（22－x）
65.
1.5
x
=28.5
57.
1
4
x＋
1
3
x
=
1
1
6
60.
6
5
x÷
3
7
=
7
3
63.
x÷
693
7
×
14
=
4
66.（0.5+
x）+ x=9.8÷2
67.
3
x
﹣2=40
68.
7
×
（2 x -6）=84
69.
8
x
=42
5
70.
x÷
1136
693
×= 71.
x ÷5 =
72. ÷x =
7144
73.
3
5
x
11
4
4
11
20
76.
532
8
x
-
5
=
5
78.
3
5
x + 2.5×8=95
81.
x
5
8
5
6
=150
3357
74.
x
2
7
x
6
7
75. 1.5 x +6=3 x
77.
525
(
8
15
12
)x
2
3
x
35
6
79.
5×3-x÷2=8
80.
173
20
－x =
4
82.
x
14
4
7
=
1
2
83.
1
2
x
5
8
=
5
32
2
3
1
3
10
5
84.
6x
= 85.
x
-
8
= 86.
x
=
7
14
4
8
21
14
87.
5x
3
7
7
2
=
88.
x
= 89.
1
3
1
x
=
4
8
90. 3
4
x5
1
2
=
1
1
2
93.
x
1
4
x20
96.
x24%1
43
50
99. x– 60% x =18
12
5
91.
1
2
x1
1
2
6
1
2
94.
64
1
2
x12
97.
2
5
x75%x
1
6
100. 40% x +30=80
5
15
92.
x15%25.5
95.
x10%x3.3
98.
18150%x7.5