1. Use the Distributive Property to Multiply with Multiples of Ten
MAFS.3.OA.2.5

2. Lesson Opening
What is the pattern in the numbers below?
What numbers go in the blanks?
40, 80, 120, __, 200, __

3. The Distributive Property
6 x 7 6 rows of 7 6 7

4. The Distributive Property
6 x 7 6 rows of 7 6 7

5. The Distributive Property
6 x 7 6 rows of 7  6 rows of 5 6 rows of 2 6 5 2

6. The Distributive Property
6 x 7 6 rows of 7  6 rows of 5 6 rows of 2 6 5 2
6 x 5 = 30
6 x 2 = 12

7. The Distributive Property
6 x 7 6 rows of 7 30 + 12
= 42 6 5 2
6 x 5 = 30
6 x 2 = 12

8. The Distributive Property
6 x 7 6 rows of 7 30 + 12
= 42 6
So, 6 x 7 = 42 5 2
6 x 5 = 30
6 x 2 = 12

9. The Distributive Property
6 x 7 6 rows of 7 30 + 12
= 42 6
So, 6 x 7 = 42 5 2
6 x 5 = 30
6 x 2 = 12
(6x5) + (6x2) = 42

10. We use the Distributive Property to multiply with greater numbers.
4 x 30

11. We use the Distributive Property to multiply with greater numbers.
4 x 30 I can break apart the array to solve this problem.

12. We use the Distributive Property to multiply with greater numbers.
4 x 30 I can break apart the array to solve this problem.

13. We use the Distributive Property to multiply with greater numbers.
4 x 30 I can break apart the array to solve this problem. + + 10 10 10 4

14. We use the Distributive Property to multiply with greater numbers.
4 x 30 I can break apart the array to solve this problem. + + 10 10 10 40 40 40 4

15. We use the Distributive Property to multiply with greater numbers.
4 x 30 I can break apart the array to solve this problem. + + 10 10 10 40 + 40 + 40 4

16. We use the Distributive Property to multiply with greater numbers.
4 x 30 (4 x 10) + (4 x 10) + (4 + 10) = = 120 + + 10 10 10 40 + 40 + 40 4

17. Numbers Bonds and the Distributive Property
30 × 8
= 240
30 eights
10 eights 80
10 eights
10 eights 80 80
= 240

18. Numbers Bonds and the Distributive Property
40 × 5
= 200
40 fives
10 fives 50
10 fives
10 fives
10 fives 50 50 50
= 200

19. Your Turn 3 × 40 120 EXPRESSION PROBLEM PRODUCT
(3 × 10) + (3 × 10) + (3 × 10) + (3 × 10)
120

20. Your Turn 3 × 40 120 4 × 60 240 EXPRESSION PROBLEM PRODUCT
(3 × 10) + (3 × 10) + (3 × 10) + (3 × 10)
120
(4 × 10) + (4 × 10) + (4 × 10) + (4 × 10) + (4 × 10) + (4 × 10)
240

21. Your Turn 3 × 40 120 4 × 60 240 5 × 30 150 EXPRESSION PROBLEM PRODUCT
(3 × 10) + (3 × 10) + (3 × 10) + (3 × 10)
120
(4 × 10) + (4 × 10) + (4 × 10) + (4 × 10) + (4 × 10) + (4 × 10)
240
150
(5 × 10) + (5 × 10) + (5 × 10)

22. Your Turn 3 × 40 120 4 × 60 240 5 × 30 150 7 × 60 420 EXPRESSION
PROBLEM
EXPRESSION
PRODUCT
3 × 40
4 × 60
5 × 30
7 × 60
(3 × 10) + (3 × 10) + (3 × 10) + (3 × 10)
120
(4 × 10) + (4 × 10) + (4 × 10) + (4 × 10) + (4 × 10) + (4 × 10)
240
150
(5 × 10) + (5 × 10) + (5 × 10)
(7 × 10) + (7 × 10) + (7 × 10) +
(7 × 10) + (7 × 10) + (7 × 10)
420

23. Select all the expressions that have a product of 240.
Exit Ticket
Select all the expressions that have a product of 240.
5 × 40
30 × 8
60 × 3
40 × 6
2 × 12
80 × 3