5 + -9 =
4
-36 + -12
-56 + 75
19
10 - -10
20
-10 - -12
2
-86 - -97
11
-43 x 5
- 215
- 25 x - 10
250
-24 x 8
-192
-12 / -5
12/5 or 2.4
80 / -5
-16
-12 / 8
-3/2 or -1.5
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