1. Unit 5 Lesson 2 Inverse Operations Copyright © 2010 Kelly Mott

2. Unit 5 Lesson 2 Inverse Operations Copyright © 2010 Kelly Mott

3. Vocabulary Copyright © 2010 Kelly Mott

4. 6 ÷ 2 = 3 The _____________________is the number that is divided. It represents the total number of items present. Division Vocabulary Copyright © 2010 Kelly Mott

5. 6 ÷ 2 = 3 Division Vocabulary Copyright © 2010 Kelly Mott The _____________________is the number you divide by.

6. 6 ÷ 2 = 3 Division Vocabulary Copyright © 2010 Kelly Mott The _____________________is the answer in division

7. 6 ÷ 2 = 3 Dividend Quotient Divisor LABEL THE PARTS: DRAW A LINE Copyright © 2010 Kelly Mott

8. 2 6 The _____________________is the number that is divided. It represents the total number of items present. 3 Division Vocabulary Copyright © 2010 Kelly Mott

9. 2 6 3 Division Vocabulary Copyright © 2010 Kelly Mott The _____________________is the number you divide by.

10. 2 6 3 Division Vocabulary Copyright © 2010 Kelly Mott The _____________________is the answer in division.

11. 2 6 Quotient Divisor Dividend 3 Copyright © 2010 Kelly Mott LABEL THE PARTS: DRAW A LINE

12. Multiplication and division are ____________. You can solve division problems by using the inverse operation. Inverse means _________________________. Copyright © 2010 Kelly Mott Division Vocabulary

13. Inverse Operation Part 1 Copyright © 2010 Kelly Mott

14. Inverse Operation: Practice 1 2 4 2 14 x x Copyright © 2010 Kelly Mott

15. Inverse Operation: Practice 2 3 12 3 18 x x Copyright © 2010 Kelly Mott

16. Inverse Operation: Practice 3 4 8 4 44 x x Copyright © 2010 Kelly Mott

17. Inverse Operation: Practice 4 5 35 5 50 x x Copyright © 2010 Kelly Mott

18. Inverse Operation Part 2 Copyright © 2010 Kelly Mott

19. 14 ÷ 2 = Ask yourself: 2 times what = 14. Copyright © 2010 Kelly Mott Inverse Operation: Practice 1

20. 18 ÷ 3 = Ask yourself: 3 times what = 18. Copyright © 2010 Kelly Mott Inverse Operation: Practice 2

21. 20 ÷ 4 = Ask yourself: 4 times what = 20. Copyright © 2010 Kelly Mott Inverse Operation: Practice 3

22. 35 ÷ 5 = Ask yourself: 5 times what = 35. Copyright © 2010 Kelly Mott Inverse Operation: Practice 4

23. Checking Division Part 1 Copyright © 2010 Kelly Mott

24. Unit 5 Lesson 2: Checking Division You can check division by using the inverse operation ( by _____________________). Example:Check: 2 16 8 Copyright © 2010 Kelly Mott Checking Division: Practice 1

25. Unit 5 Lesson 2: Checking Division Example:Check: 3 15 5 Copyright © 2010 Kelly Mott Checking Division: Practice 2

26. Unit 5 Lesson 2: Checking Division Example:Check: 4 24 6 Copyright © 2010 Kelly Mott Checking Division: Practice 3

27. Unit 5 Lesson 2: Checking Division Example:Check: 2 16 Copyright © 2010 Kelly Mott Checking Division: Practice 4

28. Unit 5 Lesson 2: Checking Division Example:Check: 4 28 Copyright © 2010 Kelly Mott Checking Division: Practice 5

29. Unit 5 Lesson 2: Checking Division Example:Check: 5 55 Copyright © 2010 Kelly Mott Checking Division: Practice 6

30. Checking Division Part 2 Copyright © 2010 Kelly Mott

31. Example: Check: 12 ÷ 2 = 6 Copyright © 2010 Kelly Mott Checking Division: Practice 1

32. Example: Check: 15 ÷ 3 = 5 Copyright © 2010 Kelly Mott Checking Division: Practice 2

33. Example: Check: 32 ÷ 4 = Copyright © 2010 Kelly Mott Checking Division: Practice 3

34. Example: Check: 25 ÷ 5 = Copyright © 2010 Kelly Mott Checking Division: Practice 4

35. Example: Check: 40 ÷ 5 = Copyright © 2010 Kelly Mott Checking Division: Practice 5

36. PAM Problems Copyright © 2010 Kelly Mott

37. 1. Katrina writes 6 ÷ 2 = 3. What two multiplication sentences can she use to check her answer? Question:Steps: Solve:Answer in Words: Copyright © 2010 Kelly Mott

38. 2. Ramon has 8 bird s in 2 cages. Each cage has the same number of birds in it. How many birds are in each cage? Question:Steps: Solve:Answer in Words: Copyright © 2010 Kelly Mott

39. How did you do? Copyright © 2010 Kelly Mott

40. HOMEWORK Math Steps Pages: 117-118 Teacher Worksheets: Re-teach Page: 90 Copyright © 2010 Kelly Mott