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Module 2 Lesson 19. Divide two- and three-digit dividends by multiples of 10 with single-digit quotients and make connections to a written method. Common Core Standards.

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module 2 lesson 19
Module 2 Lesson 19
  • Divide two- and three-digit dividends by multiples of 10 with single-digit quotients and make connections to a written method.
slide2

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.
slide3
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

slide4

Activate

Knowledge

Round the divisor to the nearest 10

908 ÷ 28

slide5

Activate

Knowledge

Name the multiple of 30 that’s closest to 908

908 ÷ 28

908 ÷ 30

slide6

Activate

Knowledge

Below 900 ÷ 30, write the answer

908 ÷ 28

908 ÷ 30

908 ÷ 28 ≈ 900 ÷ 30

slide7

Activate

Knowledge

Round the divisor to the nearest 10

152 ÷ 33

slide8

Activate

Knowledge

Name the multiple of 30 that’s closest to 152

152 ÷ 33

152 ÷ 30

slide9

Activate

Knowledge

Below 150 ÷ 30, write the answer

152 ÷ 33

152 ÷ 30

152 ÷ 33 ≈ 150 ÷ 30

slide10

Activate

Knowledge

Round the divisor to the nearest 10

398 ÷ 98

slide11

Activate

Knowledge

Name the multiple of 100 that’s closest to 398

398 ÷ 98

398 ÷ 100

slide12

Activate

Knowledge

Below 398 ÷ 100, write the answer

398 ÷ 98

398 ÷ 100

398 ÷ 98 ≈ 400 ÷ 100

slide13

Activate

Knowledge

Round the divisor to the nearest 10

7,272 ÷ 81

slide14

Activate

Knowledge

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

7,272 ÷ 81

7,272 ÷ 80

slide15

Activate

Knowledge

Below 7,200 ÷ 80, write the answer

7,272 ÷ 81

7,272 ÷ 80

7,272 ÷ 80 ≈ 7,200 ÷ 80

slide16

Activate

Knowledge

Count by nine.

slide17

Activate

Knowledge

Count by nine tens.

When I raise my hand stop counting.

slide18

Activate

Knowledge

Count by fours.

slide19

Activate

Knowledge

Count by four tens.

When I raise my hand stop counting.

slide20

Activate

Knowledge

Count by fives.

slide21

Activate

Knowledge

Count by five tens.

When I raise my hand stop counting.

slide22

Activate

Knowledge

On your whiteboards, skip count by:

21

slide23

Activate

Knowledge

Correct your work

21

slide24

Activate

Knowledge

Skip count again

21

slide25

Activate

Knowledge

On your whiteboards, skip count by:

43

slide26

Activate

Knowledge

Correct your work

43

slide27

Activate

Knowledge

Skip count again

43

slide28

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?

slide29

Learn

What is the divisor?

70 ÷ 30

Problem 1

slide30

Learn

What multiple of 30 would makedivision easy?

70 ÷ 30

Problem 1

slide31

Learn

Show how to estimate the quotient

70 ÷ 30

Problem 1

slide32

Learn

Solve

70 ÷ 30

Problem 1

slide33

Learn

Check the answer

70 ÷ 30

Problem 1

slide34

Learn

What is the divisor?

430 ÷ 60

Problem 2

slide35

Learn

What multiple of 60 would makedivision easy?

430 ÷ 60

Problem 2

slide36

Learn

Show how to estimate the quotient

430 ÷ 60

Problem 2

slide37

Learn

Solve

430 ÷ 60

Problem 2

slide38

Learn

Check the answer

430 ÷ 60

Problem 2

slide39

Learn

What is the divisor?

572 ÷ 90

Problem 2

slide40

Learn

What multiple of 90 would makedivision easy?

572 ÷ 90

Problem 2

slide41

Learn

Show how to estimate the quotient

572 ÷ 90

Problem 2

slide42

Learn

Solve

572 ÷ 90

Problem 2

slide43

Learn

Check the answer

572 ÷ 90

Problem 2

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