Contents

  1. Section A: Numbers to Thousandths
    1. Warm-up: Estimation Exploration: One Tiny Piece
    2. 1.1: What Do You Know About Thousandths?
    3. 1.2: Represent Numbers on a Hundredths Grid
    1. Warm-up: Estimation Exploration: What Part of the Square is Shaded?
    2. 2.1: Represent Thousandths on a Grid
    3. 2.2: Say What?
    1. Warm-up: Which One Doesn't Belong: Different Ways to Express a Decimal Number
    2. 3.1: Expanded Form
    3. 3.2: Decimal Numbers in Numerous Ways
    1. Warm-up: Notice and Wonder: Maintain Your Balance
    2. 4.1: Balance the Weight
    3. 4.2: Weights and Place Values
    4. 4.3: Comparing Place Values with Weights
    1. Warm-up: True or False: Decimals
    2. 5.1: Farther and Faster
    3. 5.2: Farthest Frisbee Flight
    1. Warm-up: Notice and Wonder: Nested Lines
    2. 6.1: Locate 1 Thousandth
    3. 6.2: Label and Compare Decimals
    4. 6.3: Locate and Compare With Symbols
    1. Warm-up: Notice and Wonder: A Digital Scale
    2. 7.1: Gold Doubloons
    3. 7.2: Exact or Approximate?
    1. Warm-up: Estimation Exploration: Number Line
    2. 8.1: Name that Number
    3. 8.2: Which Number is Closest?
    4. 8.3: Round the Numbers
    1. Warm-up: True or False: Decimal Inequalities
    2. 9.1: Caught in the Middle
    3. 9.2: Least to Greatest
    1. Warm-up: Notice and Wonder: The Luge
    2. 10.1: How Accurate Is It?
    3. 10.2: Compare Speeds
    4. Section A Summary
    5. Section A Practice Problems
  12. Section B: Add and Subtract Decimals
    1. Warm-up: How Many Do You See: Grids
    2. 11.1: The Sum
    3. 11.2: Target Numbers: Add Tenths or Hundredths
    1. Warm-up: Number Talk: 99 Hundredths
    2. 12.1: Use the Standard Algorithm to Add Decimals
    3. 12.2: Estimate and Find the Value
    1. Warm-up: Estimation Exploration: Many Places
    2. 13.1: Compare Calculations
    3. 13.2: Same Digits, Different Sums
    1. Warm-up: True or False: Decimal Differences
    2. 14.1: The Difference
    3. 14.2: Target Numbers: Subtract Tenths or Hundredths
    1. Warm-up: Number Talk: One and Five Tenths
    2. 15.1: Revisit the Algorithm
    3. 15.2: Estimate and Subtract
    4. 15.3: Compare Calculations to Evaluate a Difference
    1. Warm-up: Number Talk: Subtracting Decimals
    2. 16.1: What's the Difference?
    3. 16.2: Sums and Differences
    4. 16.3: Subtraction with Larger Numbers
    5. Section B Summary
    6. Section B Practice Problems
  19. Section C: Multiply Decimals
    1. Warm-up: True or False: Place Value Products
    2. 17.1: Multiply Decimals By Whole Numbers
    3. 17.2: Using Whole Number Products
    1. Warm-up: True or False: Group Dynamics
    2. 18.1: Agree or Disagree
    3. 18.2: Interpret Diagrams and Expressions
    1. Warm-up: Number Talk: Many Hundredths
    2. 19.1: Card Sort: Decimal Multiplication Card Sort
    3. 19.2: Choose a Strategy
    4. 19.3: More Multiplication Problems (Optional)
    1. Warm-up: What do you know about 1\times 0.1 and 0.1 \times 0.1 ?
    2. 20.1: Products of Tenths
    3. 20.2: Multiply Tenths
    1. Warm-up: Estimation Exploration: Central Park
    2. 21.1: Multiply More Decimals
    3. 21.2: Choose Your Strategy
    4. Section C Summary
    5. Section C Practice Problems
  25. Section D: Divide Decimals
    1. Warm-up: Number Talk: Remember Division of Unit Fractions
    2. 22.1: Patterns in Dividing by Decimal Units
    3. 22.2: Divide Whole Numbers by Decimals
    1. Warm-up: True or False: Tenths and Hundredths
    2. 23.1: Same Divisor, Different Dividend
    3. 23.2: Evaluate Expressions
    1. Warm-up: Estimation Exploration: Divide by Whole Numbers
    2. 24.1: Whole Number Groups
    3. 24.2: Evaluate Expressions
    1. Warm-up: Number Talk: Same/Different
    2. 25.1: Dividing by a Tenth and a Hundredth
    3. 25.2: Divide Decimals by Decimals
    4. Section D Summary
    1. Warm-up: Notice and Wonder: Books for Sale
    2. 26.1: Book Prices
    3. 26.2: Plan a Book Fair
    4. Section D Practice Problems
  31. Glossary
    1. Image Attributions
  33. Notes
  34. Notes
 
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