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Module 2 Lesson 19

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- Divide two- and three-digit dividends by multiples of 10 with single-digit quotients and make connections to a written method.

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.

I can divide two- and three-digit dividends by multiples of 10 with single-digit quotients and make connections to a written method.

Learning Targets

Activate

Knowledge

Round the divisor to the nearest 10

908 ÷ 28

Activate

Knowledge

Name the multiple of 30 that’s closest to 908

908 ÷ 28

908 ÷ 30

Activate

Knowledge

Below 900 ÷ 30, write the answer

908 ÷ 28

908 ÷ 30

908 ÷ 28 ≈ 900 ÷ 30

Activate

Knowledge

Round the divisor to the nearest 10

152 ÷ 33

Activate

Knowledge

Name the multiple of 30 that’s closest to 152

152 ÷ 33

152 ÷ 30

Activate

Knowledge

Below 150 ÷ 30, write the answer

152 ÷ 33

152 ÷ 30

152 ÷ 33 ≈ 150 ÷ 30

Activate

Knowledge

Round the divisor to the nearest 10

398 ÷ 98

Activate

Knowledge

Name the multiple of 100 that’s closest to 398

398 ÷ 98

398 ÷ 100

Activate

Knowledge

Below 398 ÷ 100, write the answer

398 ÷ 98

398 ÷ 100

398 ÷ 98 ≈ 400 ÷ 100

Activate

Knowledge

Round the divisor to the nearest 10

7,272 ÷ 81

Activate

Knowledge

Name the multiple of 80 that’s closest to 7,272

7,272 ÷ 81

7,272 ÷ 80

Activate

Knowledge

Below 7,200 ÷ 80, write the answer

7,272 ÷ 81

7,272 ÷ 80

7,272 ÷ 80 ≈ 7,200 ÷ 80

Activate

Knowledge

Count by nine.

Activate

Knowledge

Count by nine tens.

When I raise my hand stop counting.

Activate

Knowledge

Count by fours.

Activate

Knowledge

Count by four tens.

When I raise my hand stop counting.

Activate

Knowledge

Count by fives.

Activate

Knowledge

Count by five tens.

When I raise my hand stop counting.

Activate

Knowledge

On your whiteboards, skip count by:

21

Activate

Knowledge

Correct your work

21

Activate

Knowledge

Skip count again

21

Activate

Knowledge

On your whiteboards, skip count by:

43

Activate

Knowledge

Correct your work

43

Activate

Knowledge

Skip count again

43

Activate

Knowledge

At the Highland Falls pumpkin growing contest, the prize winning pumpkin contains 360 seeds. The proud farmer plans to sell his seeds in packs of 12. How many packs can he make using all the seeds?

Learn

What is the divisor?

70 ÷ 30

Problem 1

Learn

What multiple of 30 would makedivision easy?

70 ÷ 30

Problem 1

Learn

Show how to estimate the quotient

70 ÷ 30

Problem 1

Learn

Solve

70 ÷ 30

Problem 1

Learn

Check the answer

70 ÷ 30

Problem 1

Learn

What is the divisor?

430 ÷ 60

Problem 2

Learn

What multiple of 60 would makedivision easy?

430 ÷ 60

Problem 2

Learn

Show how to estimate the quotient

430 ÷ 60

Problem 2

Learn

Solve

430 ÷ 60

Problem 2

Learn

Check the answer

430 ÷ 60

Problem 2

Learn

What is the divisor?

572 ÷ 90

Problem 2

Learn

What multiple of 90 would makedivision easy?

572 ÷ 90

Problem 2

Learn

Show how to estimate the quotient

572 ÷ 90

Problem 2

Learn

Solve

572 ÷ 90

Problem 2

Learn

Check the answer

572 ÷ 90

Problem 2

Practice

Review