Answer:
1. 13-(-6)
13+6= 19
2. -7-(-8)
-7+8= 1
3. -19-23= -42
4. -7-(-2)
-7+2= -5
5. 11-9= 2
6. 13-(-6)
13+6=19
7. -8-(-7)
-8+7= -1
8. -19-23= -42
9. -7-(-2)
10. 11-9= 2
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Verified answer
Answer:
1. 13-(-6)
13+6= 19
2. -7-(-8)
-7+8= 1
3. -19-23= -42
4. -7-(-2)
-7+2= -5
5. 11-9= 2
6. 13-(-6)
13+6=19
7. -8-(-7)
-8+7= -1
8. -19-23= -42
9. -7-(-2)
-7+2= -5
10. 11-9= 2