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40 questions
3+(-4)
1
-1
7
-7
(-8)+(-2)
6
-6
10
-10
7+(-5)
2
-2
12
-12
9+2
7
-7
11
-11
(-4)+(-2)
2
6
-2
-6
7+(-9)
2
16
-16
-2
4+(-3)
-7
7
-1
1
1+(-6)
-7
5
7
-5
4+(-9)
5
-5
13
-13
(-9)+(-9)
-18
18
0
81
5+(-6)
11
1
-11
-1
(-5)+0
5
-5
-6
0
(-2)+2
4
-4
0
-1
(-8)+(-5)
3
-13
13
-3
6+(-7)
1
-1
13
-13
3+4
1
-1
7
-7
(-6)+(-8)
14
-14
2
-2
7+(-8)
15
1
-1
-15
3+8
5
-5
-11
11
1+(-7)
-8
8
-6
6
0+(-9)
9
-9
0
8
7+(-3)
10
-10
4
-4
2+5
7
-7
3
-3
8+(-8)
1
0
16
-16
(-9)+(-5)
4
-14
14
-4
(-6)+(-7)
1
-1
13
-13
4+(-1)
5
-5
-3
3
6+(-8)
2
-14
14
-2
(-6)+0
0
-5
6
-6
(-3)+(-1)
-4
4
2
-2
(-1)+(-8)
-9
9
7
-7
5+(-7)
2
-2
12
-12
5+5
0
10
-10
25
7+(-2)
5
9
-9
-5
(-8)+(-5)
3
13
-13
-3
7+(-9)
16
-16
-2
2
2+(-8)
10
-10
-6
6
(-9)+(-1)
-10
10
8
-8
(-6)+7
13
-13
1
-1
0+(-6)
0
6
-6
-5
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