Draw equal groups or an array to show 4 × 2. Solve.
4 × 2 = 8. Example: 4 groups of 2 dots.
Solve 2 × 5. Write and solve the related fact with the factors switched.
2 × 5 = 10
5 × 2 = 10
Find n: n × 2 = 16.
n = 8
8 × 2 = 16
Solve both: 9 × 1 and 7 × 1.
9 × 1 = 9
7 × 1 = 7
Show 6 × 2 with number-line jumps. What is the product?
6 jumps of 2 land on 12.
6 × 2 = 12
Use a number line to show 5 × 3. Solve.
5 × 3 = 15
Start at 0 and make 5 jumps of 3: 0, 3, 6, 9, 12, 15.
Solve 2 × 9. Write and solve the related fact with the factors switched.
2 × 9 = 18
9 × 2 = 18
Find n: n × 4 = 28.
n = 7
7 × 4 = 28
Solve both: 0 × 8 and 6 × 0.
0 × 8 = 0
6 × 0 = 0
Uncle Mark installed 2 windows in each of 5 rooms in the house. How many windows did Uncle Mark install? Write an equation and an answer sentence.
5 × 2 = 10
Uncle Mark installed 10 windows.
Draw an array to show 3 × 7. Solve.
3 × 7 = 21. Example: 3 rows of 7 dots.
Solve 8 × 5. Write and solve the related fact with the factors switched.
8 × 5 = 40
5 × 8 = 40
Find n: n × 5 = 30.
n = 6
6 × 5 = 30
Solve both: 1 × 5 and 10 × 0.
1 × 5 = 5
10 × 0 = 0
Dad painted 4 walls in each of 5 rooms in the house. How many walls did Dad paint? Write an equation and an answer sentence.
5 × 4 = 20
Dad painted 20 walls.
Draw equal groups or an array to show 5 × 7. Solve.
5 × 7 = 35. Example: 5 groups of 7 dots.
Solve 5 × 6. Write the related fact with the factors switched. Draw an array for each fact.
5 × 6 = 30
6 × 5 = 30
Arrays: 5 rows of 6 and 6 rows of 5.
Picture the fact to find n: n × 4 = 32.
n = 8
8 × 4 = 32
Example: 8 groups of 4 dots.
Picture the fact 3 × 1 and solve.
3 × 1 = 3
Example: 3 groups of 1 dot.
Shawn took 3 bags of apples to share with his class. Each bag had 8 apples in it. How many apples did Shawn take to class? Write an equation and an answer sentence.
3 × 8 = 24
Shawn took 24 apples to class.
Draw an array to show 9 × 4. Solve.
9 × 4 = 36. Example: 9 rows of 4 dots.
Solve 4 × 6 and its related fact, 6 × 4. Why are the products equal?
4 × 6 = 24
6 × 4 = 24
Switching the order of the factors does not change the product (commutative property).
Picture the fact to find n: n × 3 = 27.
n = 9
9 × 3 = 27
Example: 9 groups of 3 dots.
Explain both rules: What happens when you multiply a number by 1? What happens when you multiply a number by 0?
Multiplying by 1 gives the same number (identity property).
Multiplying by 0 gives 0 (zero property).
Find 5 × 5. Show or explain two ways to find the product.
5 × 5 = 25
Examples: skip count 5, 10, 15, 20, 25; draw 5 rows of 5 dots; or add 5 + 5 + 5 + 5 + 5.