- 4 + -5 =
-9
-3 + 1 =
-2
8 + 10 =
18
45 +25 =
70
9 + -5 =
4
-10 +-10=
-20
-15 + -9 =
-24
-18 + 8 =
7 + -5 =
2
-26 + -11 =
- 37
-33 + 11=
-22
66 + -18 =
48
-97 + -45 =
- 142
- 87 + 44 =
-43
-89 + 53 =
-36
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