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16 questions
(-18) + 3
-15
15
21
-21
(-29) + (-34)
5
63
-63
-5
(-49) + 32
17
-17
81
-81
(-49) + 32
17
-17
81
-81
13 + (-33)
46
20
-20
-46
44 + (-31)
-75
75
-13
13
(-12) + (-16)
4
-28
-4
28
(-45) + (-1)
46
-44
-44
-46
9 - (-3)
-6
-12
21
12
1 - 3
-2
4
2
0
3 - 7
5
-4
10
-10
-9 - 13
4
22
-22
-4
-2 - 3
1
-1
-5
5
-13 - (-2)
11
-11
-15
15
-23 - (-6)
29
17
-17
-29
8 - 12
20
-16
-20
-4
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