Unit 5

Section A: Warming Up to Decimals

• Lesson 1: Using Decimals in a Shopping Context

  Let’s use what we know about decimals to make shopping decisions.

  • Lesson Activities
  • Practice Problems

Section B: Adding and Subtracting Decimals

• Lesson 2: Using Diagrams to Represent Addition and Subtraction

  Let’s represent addition and subtraction of decimals.

  • Lesson Activities
  • Practice Problems

• Lesson 3: Adding and Subtracting Decimals with Few Non-Zero Digits

  Let’s add and subtract decimals.

  • Lesson Activities
  • Practice Problems

• Lesson 4: Adding and Subtracting Decimals with Many Non-Zero Digits

  Let’s practice adding and subtracting decimals.

  • Lesson Activities
  • Practice Problems

Section C: Multiplying Decimals

• Lesson 5: Decimal Points in Products

  Let’s look at products that are decimals.

  • Lesson Activities
  • Practice Problems

• Lesson 6: Methods for Multiplying Decimals

  Let’s look at some ways we can represent multiplication of decimals.

  • Lesson Activities
  • Practice Problems

• Lesson 7: Using Diagrams to Represent Multiplication

  Let’s use area diagrams to find products.

  • Lesson Activities
  • Practice Problems

• Lesson 8: Calculating Products of Decimals

  Let’s multiply decimals.

  • Lesson Activities
  • Practice Problems

Section D: Dividing Decimals

• Lesson 9: Using the Partial Quotients Method

  Let’s divide whole numbers.

  • Lesson Activities
  • Practice Problems

• Lesson 10: Using Long Division

  Let’s use long division.

  • Lesson Activities
  • Practice Problems

• Lesson 11: Dividing Numbers that Result in Decimals

  Let’s find quotients that are not whole numbers.

  • Lesson Activities
  • Practice Problems

• Lesson 12: Dividing Decimals by Whole Numbers

  Let’s divide decimals by whole numbers.

  • Lesson Activities
  • Practice Problems

• Lesson 13: Dividing Decimals by Decimals

  Let’s divide decimals by decimals.

  • Lesson Activities
  • Practice Problems

Section E: Let’s Put It to Work

• Lesson 14: Using Operations on Decimals to Solve Problems

  Let’s solve some problems using decimals.

  • Lesson Activities
  • Practice Problems

• Lesson 15: Making and Measuring Boxes

  Let’s use what we know about decimals to make and measure boxes.

  • Lesson Activities