Curriculum  /  Math  /  5th Grade  /  Unit 6: Multiplication and Division of Decimals  /  Lesson 22

Multiplication and Division of Decimals

Lesson 22

Math

Unit 6

5th Grade

Lesson 22 of 24

Objective

Express measurements in a whole number of smaller units in terms of a larger unit.

Common Core Standards

Core Standards

  • 5.MD.A.1 — Convert among different-sized standard measurement units within a given measurement system (e.g., convert 5 cm to 0.05 m), and use these conversions in solving multi-step, real world problems.

Foundational Standards

  • 4.MD.A.1

Criteria for Success

  1. Convert from smaller whole-number units to larger ones, including decimal units (e.g., 6,700 grams is how many kilograms?). 
  2. Convert from smaller whole-number units to larger ones, including fractional units (e.g., 18 ounces is how many pounds?). 

Tips for Teachers

Lesson Materials

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Anchor Tasks

25-30 minutes

Problem 1

Fill in the blanks to make the following statements true.

a.   9,000 mL = ________ L

b.   36,000 cm = _________ m

c.   4 mm = _________ cm

d.   58 mm = ___________ cm

e.   67,000 mg = _________ kg

Guiding Questions

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Student Response

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Problem 2

Fill in the blanks to make the following statements true.

a.   36 in = ________ ft

b.   8 oz = ________ lb

c.   190 min = ________ hr

d.   34 c = ________ gal

Guiding Questions

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Student Response

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Problem Set

15-20 minutes

Discussion of Problem Set

  • How did you find the two correct answers in #1?
  • In #5, were there any potential answers that you could rule out without even needing to do the conversions? How? Did you solve by converting the various measurements in the table to gallons in the table or converting 60 gallons to quarts? Would either strategy work?

Target Task

5-10 minutes

Problem 1

Convert pints to gallons.

18 pints = ___________ gallons

Student Response

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Problem 2

Convert millimeters to kilometers.

140,000 millimeters = ___________ kilometers

Student Response

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Additional Practice

The Extra Practice Problems can be used as additional practice for homework, during an intervention block, etc. Daily Word Problems and Fluency Activities are aligned to the content of the unit but not necessarily to the lesson objective, therefore feel free to use them anytime during your school day.

Word Problems and Fluency Activities

Word Problems and Fluency Activities

Help students strengthen their application and fluency skills with daily word problem practice and content-aligned fluency activities.

Next

Express measurements in a fractional or decimal number of smaller units in terms of a larger unit.

Lesson 23
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Lesson Map

A7CB09C2-D12F-4F55-80DB-37298FF0A765

Topic A: Multiplying Decimals

Topic B: Dividing Decimals

Topic C: Decimal Expressions and Real-World Problems

Topic D: Measurement Conversion and Real-World Problems

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