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.

• 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 CoreStandards

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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On your whiteboards, skip count by:

21

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Correct your work

21

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Skip count again

21

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On your whiteboards, skip count by:

43

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Correct your work

43

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Skip count again

43

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607 ÷ 19

Round the divisor to the nearest 10

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607 ÷ 19

Name the multiple of 20 that’s closest to 607

607 ÷ 20

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607 ÷ 19

Below 600 ÷ 20, write the answer

607 ÷ 20

607 ÷ 19 ≈ 600 ÷ 20

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123 ÷ 24

Round the divisor to the nearest 10

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123 ÷ 24

Name the multiple of 20 that’s closest to 123

123 ÷ 20

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123 ÷ 24

Below 120 ÷ 20, write the answer

123 ÷ 20

123 ÷ 24 ≈ 120 ÷ 20

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891 ÷ 96

Round the divisor to the nearest 10

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891 ÷ 96

Name the multiple of 100 that’s closest to 891

891 ÷ 100

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891 ÷ 96

Below 900 ÷ 100, write the answer

891 ÷ 100

891 ÷ 96 ≈ 900 ÷ 100

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5,482 ÷ 62

Round the divisor to the nearest 10

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5,482 ÷ 62

Name the multiple of 60 that’s closest to 5,482

5,482 ÷ 60

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5,482 ÷ 62

Below 5,400 ÷ 60, write the answer

5,482 ÷ 60

5,482 ÷ 60 ≈ 5,400 ÷ 60

Solve using standard algorithm.Check answer by multiplying and Adding

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73 ÷ 50

Solve using standard algorithm.Check answer by multiplying and Adding

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70 ÷ 30

Solve using standard algorithm.Check answer by multiplying and Adding

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157 ÷ 30

Solve using standard algorithm.Check answer by multiplying and Adding

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432 ÷ 70

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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?

Learn

Problem 1

72 ÷ 21

What is the whole?

Learn

Problem 1

What multiple of 20 would makedivision easy?

72 ÷ 21

Learn

Problem 1

Solve

72 ÷ 21

21 7 2

Learn

Problem 1

Check

72 ÷ 21

21 7 2

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

Learn

Problem 3

84 ÷ 23

Find a multiple of 20 that wouldmake solving this problem easy

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

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Practice

Review

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Teamwork

Learning Targets