Math
Integer operations.
Definition
The rules for adding, subtracting, multiplying, and dividing positive and negative whole numbers (integers). Key rules involve the signs of the numbers being combined.
Examples
Real-world.
- 1 −5 + 3 = −2 (different signs: subtract and keep the sign of the larger absolute value)
- 2 −4 × −6 = 24 (negative times negative equals positive)
- 3 −12 ÷ 3 = −4 (different signs give a negative result)
Key Fact
Same signs multiply/divide to positive; different signs multiply/divide to negative.