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Add:
-2 + 5 = ?
Add:
1 + -5 = ?
Subtract:
-1 - -4 = ?
Add:
3 + 1 = ?
Add:
-3 + -5 = ?
Subtract:
-4 - 3 = ?
Subtract:
5 - -5 =
Subtract:
-2 - 1 =
Add:
4 + 5 =
Subtract:
-2 - -4 =
Subtract:
2 - -3 =
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