Properties of multiplication
key notes:
Commutative property:
You can multiply numbers in any order and get the same product.
3 × 9 = 9 × 3
Associative property:
You can group the factors in any way without changing the result.
7 × (8 × 6) = (7 × 8) × 6
Zero property:
Multiplying by 0 always gives 0.
3 × 0 = 0
Identity property:
Multiplying by 1 does not change a number.
2 = 1 × 2
Distributive property:
You can multiply a sum by multiplying each addend separately.
5 × (7 + 2) = (5 × 7) + (5 × 2)
The distributive property works with subtraction, too.
5 × (7 − 2) = (5 × 7) − (5 × 2)
Learn with an example
✈️ Which equation shows the commutative property of multiplication?
- 1 × 4 = 4
- 8 × 2 + 8 × 1 = 8 × (2 + 1)
- 7 × 2 = 2 + 2 + 2 + 2 + 2 + 2 + 2
- 3 × 1 = 1 × 3
- 3 × 1 = 1 × 3
- This equation shows the commutative property. The order of the factors is changed.
✈️ Which property of multiplication is shown?
✈️ (7 × 3) × 6 = 7 × (3 × 6)
- associative
- zero
- commutative
- identity
- (7 × 3) × 6 = 7 × (3 × 6)
- This equation shows the associative property. The grouping of the factors is changed.
✈️ Which equation shows the associative property of multiplication?
- 7 × 3 − 0 × 3 = (7 − 0) × 3
- (5 × 1) × 9 = 5 × (1 × 9)
- 7 × 9 + 1 = 63 + 1
- 6 + 6 + 6 = 3 × 6
- (5 × 1) × 9 = 5 × (1 × 9)
- This equation shows the associative property. The grouping of the factors is changed.
Let’s practice!🖊️