北师大版六年级数学上册期末专项训练题(解方程)
玛丽莲梦兔
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2021年01月27日 17:43
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北师大版六年级数学上册期末专项训练题
(
求未知数)
一、注意审题,细心计算。解方程
5
1
13
2
1
3
1
3
2
x
-
x
=
x
+
x
=
x
+
x
=14
x
×
(
1-
)
=60
8
12
25
20%
x
=86
8+0.5
x
=15
x
-
1
x
=
15
4
16
2
7
x
+
1
3
x
=13
15
6
20
30%
x
=42
60%
x
=21
5%
x
=30
4.5
x
+
x
=
11
17
6
1
4
x
+
3
8
x
=
1
3
1
3
x
+2/5
x
=22
x
-40%
x
=
120
19
20
x
=
7
10
+
2
5
1
4
3
49
+
40%
x
=
89
92%x-38%
x
=27
5
x
-
3
10
x
=
940
60%
x
=30
x
+12.5%
x
=18
78%
x
-48%
x
=24
5
x
+
=2
80%
x
=200
4+
1
2
3
1
x
+
x
=15
8
4
7
1
3
x
=102
x
-
x
=
x
-0.8
x
=22
2
3
x
+
1
2
x
=42
x
+
1
5
x
=240
3
4
1
5
x
=
4
3
10
x
-
1
4
=
1
2
x
-60%
x
=160
70%
x
-35%
x
=98
4
8
x
+
3
4
=6
50%
x
-33%
x
=34
2
7
x
+
1
3
x
=26
2
30%
x
=120
120
x
-20
x
=40
1
3
2
x
+
5
x
=8.8