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When subtracting and adding negative integers, remember these rules:
| Rule | Example | ||
|---|---|---|---|
 |
Two like signs become a positive sign | +(+) | 3+(+2) = 3 + 2 = 5 |
| -(-) | 6-(-3) = 6 + 3 = 9 | ||
 |
Two unlike signs become a negative sign | +(-) | 7+(-2) = 7 - 2 = 5 |
| -(+) | 8-(+2) = 8 - 2 = 6 |
Play this game for more practice.
