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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.

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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. Common Core Standards

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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.

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Activate Knowledge On your whiteboards, skip count by: 21

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Activate Knowledge Correct your work 21

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Activate Knowledge Skip count again 21

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Activate Knowledge On your whiteboards, skip count by: 43

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Activate Knowledge Correct your work 43

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Activate Knowledge Skip count again 43

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

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

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

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Activate Knowledge 123 ÷ 24 Round the divisor to the nearest 10

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

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

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Activate Knowledge 891 ÷ 96 Round the divisor to the nearest 10

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

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

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

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

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

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

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

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

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

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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?

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Learn Problem 1 72 ÷ 21 What is the whole?

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

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Learn Problem 1 Solve 72 ÷ 21

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Learn Problem 1 Check 72 ÷ 21

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Problem 2 94 ÷ 43 Teamwork 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

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

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Problem 4 57 ÷ 29 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 ✔ Check Understanding

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Practice

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Review

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Learn Review Practice Activate Knowledge ✔ Check Understanding Teamwork Learning Targets

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