Multiplication: The mathematical operation of repeated addition.
Factors: The numbers being multiplied together.
Product: The result of multiplying two or more factors.
Multiplication Facts: Basic multiplication equations that can be recalled quickly (e.g., 3×4=12).
Identity Property: Any number multiplied by one equals itself.
Commutative Property: The order of factors does not change the product.
Repeated Addition: Multiplication as adding the same number multiple times.
• Identity Property: a × 1 = a (any number times one is itself)
• Commutative Property: a × b = b × a (order doesn't matter)
• Repeated Addition: a × b = a + a + a... (b times)
• Patterns: Multiplication facts follow predictable patterns
• Memorization: Facts 1-6 should be memorized for fluency
• Building Blocks: These facts form the foundation for larger multiplication
- Repeated Addition: 3 × 4 = 3 + 3 + 3 + 3 = 12
- Arrays: Visual representation of rows and columns
- Groups: Equal groups of items (3 groups of 4)
- Number Line: Skip counting on a number line
- Memorization: Learning facts through practice
- Patterns Recognition: Identifying patterns in multiplication
| × | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| 1 | 1 | 2 | 3 | 4 | 5 | 6 |
| 2 | 2 | 4 | 6 | 8 | 10 | 12 |
| 3 | 3 | 6 | 9 | 12 | 15 | 18 |
| 4 | 4 | 8 | 12 | 16 | 20 | 24 |
| 5 | 5 | 10 | 15 | 20 | 25 | 30 |
| 6 | 6 | 12 | 18 | 24 | 30 | 36 |
- All facts with 1 equal the other factor (Identity Property)
- All facts with 2 are even numbers (doubles)
- All facts with 3 follow the pattern: odd, even, odd, even...
- All facts with 4 are even numbers
- All facts with 5 end in 0 or 5
- All facts with 6 are even numbers
One Facts
Any number × 1 = itself
Examples: 1×4=4, 6×1=6
Two Facts
Always even numbers
Examples: 2×3=6, 2×6=12
Three Facts
Alternating odd/even
Examples: 3×2=6, 3×3=9
Six Facts
Always even numbers
Examples: 6×2=12, 6×5=30
2, 3, 6: 2×3=6, 3×2=6, 6÷2=3, 6÷3=2
4, 5, 20: 4×5=20, 5×4=20, 20÷4=5, 20÷5=4
3, 6, 18: 3×6=18, 6×3=18, 18÷3=6, 18÷6=3
1×6=
1×2=
1×5=
2×5=
2×4=
2×6=
3×5=
3×2=
3×6=
One Facts: 1×4=4, 1×6=6, 1×2=2, 1×5=5
Two Facts: 2×3=6, 2×5=10, 2×4=8, 2×6=12
Three Facts: 3×4=12, 3×5=15, 3×2=6, 3×6=18
4×3=
4×6=
4×2=
5×4=
5×2=
5×3=
6×4=
6×3=
6×2=
Four Facts: 4×5=20, 4×3=12, 4×6=24, 4×2=8
Five Facts: 5×6=30, 5×4=20, 5×2=10, 5×3=15
Six Facts: 6×5=30, 6×4=24, 6×3=18, 6×2=12
Sarah has 6 boxes of crayons. Each box has 4 crayons. How many crayons does Sarah have?
Solution: 6 × 4 = 24 crayons
Tom has 5 bags with 3 apples in each bag. How many apples does Tom have?
Solution: 5 × 3 = 15 apples
A classroom has 4 rows of desks. Each row has 6 desks. How many desks are there?
Solution: 4 × 6 = 24 desks