Place Value, Rounding, Addition, and Subtraction
Lesson 6
Objective
Multiply and divide multiple units by 10. Apply the property of “ten times greater” in the context of problems.
Common Core Standards
Core Standards
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4.NBT.A.1 — Recognize that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right. For example, recognize that 700 ÷ 70 = 10 by applying concepts of place value and division.
Foundational Standards
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2.NBT.A.1
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2.NBT.A.2
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2.NBT.A.3
Criteria for Success
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- Multiply numbers of multiple units by 10, generalizing the pattern that multiplying by ten results in digits shifting one place to the left (MP.8).
- Divide numbers of multiple units by 10, generalizing the pattern that multiplying by ten results in digits shifting one place to the left (MP.8).
- Use the property of “ten times greater” to solve real-world and contextual problems.
Tips for Teachers
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- The following material is needed for today's lesson: Millions Place Value Chart
Remote Learning Guidance
If you need to adapt or shorten this lesson for remote learning, we suggest prioritizing Anchor Task 2 (benefits from worked example). Find more guidance on adapting our math curriculum for remote learning here.
Anchor Tasks
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Problem 1
- Solve.
- 10 x 320 = ___________
- 40,200 $$\div$$ 10 = ___________
- 10 x (4 thousands 5 hundreds) = ___________
- (7 hundreds 9 tens) $$\div$$ 10 = ___________
- 2,008 x ___________ = 20,080
- ___________ $$\div$$ 10 = 3 thousands 5 ones
- Explain how you solved #1.
Guiding Questions
References
Grade 4 Mathematics > Module 1 > Topic A > Lesson 2 of the New York State Common Core Mathematics Curriculum from EngageNY and Great Minds. © 2015 Great Minds. Licensed by EngageNY of the New York State Education Department under the CC BY-NC-SA 3.0 US license. Accessed Dec. 2, 2016, 5:15 p.m..
Modified by Fishtank Learning, Inc.Problem 2
Jenny’s dad has 10 times as much money as Jenny does. Jenny has 4 hundred-dollar bills and 34 one-dollar bills. How much money does Jenny’s dad have?
Guiding Questions
Problem Set & Homework
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- Problem Set Answer Key
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- Homework Answer Key
Discussion of Problem Set
- Practice reading your answers in #2 out loud. What similarities did you find in saying the numbers in unit form and standard form? Differences?
- How can you use multiplication and division to describe the relationship between units on the place value chart?
- Gail said she noticed that when you multiply a number by 10, you shift the digits one place to the left and put a zero in the ones place. Is she correct?
Target Task
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Problem 1
Fill in the blank to make a true number sentence.
- (4 ten thousands 6 hundreds) × 10 = ___
- ___ × 10 = 80,200
References
Grade 4 Mathematics > Module 1 > Topic A > Lesson 2 of the New York State Common Core Mathematics Curriculum from EngageNY and Great Minds. © 2015 Great Minds. Licensed by EngageNY of the New York State Education Department under the CC BY-NC-SA 3.0 US license. Accessed Dec. 2, 2016, 5:15 p.m..
Modified by Fishtank Learning, Inc.Problem 2
The Carson family saved up $39,580 for a new home. The cost of their dream home is 10 times as much as they have saved. How much does their dream home cost?
References
Grade 4 Mathematics > Module 1 > Topic A > Lesson 2 of the New York State Common Core Mathematics Curriculum from EngageNY and Great Minds. © 2015 Great Minds. Licensed by EngageNY of the New York State Education Department under the CC BY-NC-SA 3.0 US license. Accessed Dec. 2, 2016, 5:15 p.m..
Modified by Fishtank Learning, Inc.Mastery Response
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Additional Practice
Unit Practice
With Fishtank Plus you can access our Daily Word Problem Practice and our content-aligned Fluency Activities created to help students strengthen their application and fluency skills.
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