Answer:
-13 + 8 = -5 (negative number)
Step-by-step explanation:
1.
(-21) - (-22)
-21 + 22 = 1 (positive number)
2.
(-13) - (-8)
-13 + 8 = -5 (negative number)
3.
15 - (-7) - 19
15 + 7 - 9
22 - 9 = 13 (positive number)
4.
(-37) - (-45)
-37 + 45 = 8 (positive number)
Hope this helps!
