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40 questions
8-(-2)
10
-10
6
-6
-8-2
-10
10
-6
6
7-(-3)
10
4
-4
-10
-3+7
4
-4
-10
10
-6+6
0
-12
12
1
-9+2
-7
7
11
-11
-6+4
-10
-2
10
2
7-(-5)
12
2
-2
-12
-6-(-2)
-8
-4
4
8
3-7
4
-4
10
-10
(-2)-7
-9
9
-5
5
1-(-8)
-7
7
9
-9
(-6)-(-8)
14
-14
2
-2
5-(-8)
13
-13
3
-3
-5-(-8)
3
-3
-13
13
-5-8
-13
13
3
-3
-4-2
-6
6
2
-2
-4-(-2)
-2
2
-6
6
-4-6
-10
10
2
-2
0-(-4)
-4
4
3
0
5-(-3)
8
-8
2
-2
-9+1
-10
10
8
-8
3-(-9)
12
-12
6
-6
-7-(-1)
8
-8
6
-6
-7+(-1)
-8
8
6
-6
2-6
-4
4
8
-8
-9-4
13
-13
5
-5
2-(-8)
10
-10
6
-6
-2-(-8)
6
-6
10
-10
7-(-8)
1
-1
15
-15
-7+(-8)
15
-15
1
-1
-7-(-8)
15
-15
1
-1
-6+(-4)
10
-10
2
-2
7-(-9)
16
-16
2
-2
(-9)-(-7)
-2
2
16
-16
(-6)-(-1)
-7
7
-5
5
(-6)+(-1)
7
-7
5
-5
5-(-5)
10
-10
0
5
6-(-5)
11
-11
1
-1
0-(-9)
9
-9
0
-8
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