7th Grade · The Number System
Repeated Addition
7.NS.A.2a
Definition
Multiplication understood as adding the same number repeatedly.
Examples
- 3 × (−2) = (−2) + (−2) + (−2) = −6.
- 4 × 3 = 3 + 3 + 3 + 3 = 12.
Key rule
Multiplying a positive by a negative makes repeated negative jumps.
Memory hook
Multiply = add it again and again.