1. Module 2 Lesson 20
Divide two- and three-digit dividends by two-digit divisors with single-digit quotients and make connections to a written method.

2. Common Core
Standards
5.NBT.6 Find whole-number quotients of whole numbers with up to four-digit dividends and two- digit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.

3. Learning Targets
I can Divide two- and three-digit dividends by two-digit divisors with single-digit quotients and make connections to a written method.

4. On your whiteboards, skip count by:
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Knowledge
On your whiteboards, skip count by: 21

5. Activate
Knowledge
Correct your work 21

6. Activate
Knowledge
Skip count again 21

7. On your whiteboards, skip count by:
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Knowledge
On your whiteboards, skip count by: 43

8. Activate
Knowledge
Correct your work 43

9. Activate
Knowledge
Skip count again 43

10. Round the divisor to the nearest 10
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Knowledge
Round the divisor to the nearest 10
607 ÷ 19

11. Name the multiple of 20 that’s closest to 607
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Knowledge
Name the multiple of 20 that’s closest to 607
607 ÷ 19
607 ÷ 20

12. Below 600 ÷ 20, write the answer
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Knowledge
Below 600 ÷ 20, write the answer
607 ÷ 19
607 ÷ 20
607 ÷ 19 ≈ 600 ÷ 20

13. Round the divisor to the nearest 10
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Knowledge
Round the divisor to the nearest 10
123 ÷ 24

14. Name the multiple of 20 that’s closest to 123
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Knowledge
Name the multiple of 20 that’s closest to 123
123 ÷ 24
123 ÷ 20

15. Below 120 ÷ 20, write the answer
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Knowledge
Below 120 ÷ 20, write the answer
123 ÷ 24
123 ÷ 20
123 ÷ 24 ≈ 120 ÷ 20

16. Round the divisor to the nearest 10
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Knowledge
Round the divisor to the nearest 10
891 ÷ 96

17. Name the multiple of 100 that’s closest to 891
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Knowledge
Name the multiple of 100 that’s closest to 891
891 ÷ 96
891 ÷ 100

18. Below 900 ÷ 100, write the answer
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Knowledge
Below 900 ÷ 100, write the answer
891 ÷ 96
891 ÷ 100
891 ÷ 96 ≈ 900 ÷ 100

19. Round the divisor to the nearest 10
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Knowledge
Round the divisor to the nearest 10
5,482 ÷ 62

20. Name the multiple of 60 that’s closest to 5,482
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Knowledge
Name the multiple of 60 that’s closest to 5,482
5,482 ÷ 62
5,482 ÷ 60

21. Below 5,400 ÷ 60, write the answer
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Knowledge
Below 5,400 ÷ 60, write the answer
5,482 ÷ 62
5,482 ÷ 60
5,482 ÷ 60 ≈ 5,400 ÷ 60

22. Solve using standard algorithm. Check answer by multiplying and Adding
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Knowledge
Solve using standard algorithm.
Check answer by multiplying and Adding
73 ÷ 50

23. Solve using standard algorithm. Check answer by multiplying and Adding
Activate
Knowledge
Solve using standard algorithm.
Check answer by multiplying and Adding
70 ÷ 30

24. Solve using standard algorithm. Check answer by multiplying and Adding
Activate
Knowledge
Solve using standard algorithm.
Check answer by multiplying and Adding
157 ÷ 30

25. Solve using standard algorithm. Check answer by multiplying and Adding
Activate
Knowledge
Solve using standard algorithm.
Check answer by multiplying and Adding
432 ÷ 70

26. Activate
Knowledge
Billy has 2.4 m of ribbon for crafts. He wants to share it evenly with 12 friends. How many centimeters of ribbon would 7 friends get?

27. Learn
What is the whole?
72 ÷ 21
Problem 1

28. What multiple of 20 would make division easy?
Learn
What multiple of 20 would make division easy?
72 ÷ 21
Problem 1

29. Learn
Solve
72 ÷ 21
Problem 1

30. Learn
Check
72 ÷ 21
Problem 1

31. Round the divisor. Find a multiple of the divisor that makes the division easy. Estimate the quotient. Solve using the standard algorithm.
Check the answer
Teamwork
94 ÷ 43
Problem 2

32. Find a multiple of 20 that would make solving this problem easy
Learn
Find a multiple of 20 that would make solving this problem easy
84 ÷ 23
Problem 3

33. ✔ 57 ÷ 29 Check Understanding
Round the divisor. Find a multiple of the divisor that makes the division easy. Estimate the quotient. Solve using the standard algorithm.
Check the answer
57 ÷ 29
Problem 4

34. Practice
Mixed Problems
7 11/8 = 8 3/8

43. Review
3.65

44. ✔ Learn Review Practice Activate Knowledge Check Understanding
Learning Targets
Teamwork