If the signs are the same, add the numbers’ absolute values and retain the same sign.

The countdown was at - 38. Where will it restart from?

Example: -11 + -8 = -19

If the signs are different, subtract the numbers’ absolute values and retain the sign of the number with the greater absolute value.

Example: -11 + 8 = -3

Example: Devin has lost $75, but in the last two races he bets on his favorite horses, Polish Power and Lucky Linda. He wins $40 on each race. How much is he ahead for the day?

- 75 +40 + 40

Answer: + $5