My Math Chapter 5: Add and Subtract Decimals
In Progress - Updated 8-12-19
In this chapter, students will add and subtract decimals to solve real-world problems.
Chapter 5 Objectives:
Chapter 5 Downloads
In this chapter, students will add and subtract decimals to solve real-world problems.
Chapter 5 Objectives:
- Model addition and subtraction of decimals using base-10 blocks and 100ths squares
- Round decimals
- Estimate sums and differences of decimals
- Apply the commutative and associative properties of addition to solve problems
- Use an algorithm to add and subtract decimals in a variety of contexts
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Chapter 5 Downloads
Chapter 5 Lesson Resources
Listed below are chapter lessons from the McGraw-Hill My Math text. Please note that these lessons may be modified, rearranged, or omitted. Supplemental lessons will be added as needed.
Lesson 1: Rounding Decimals
Downloads Video Tutorials
Downloads Video Tutorials
- Rounding (Mr. Bowen)
- Rounding Decimals (Khan Academy)
- Rounding Decimals (LearnZillion)
- Round Decimals (MrMathBlog)
- Hotel Decimalfornia Game
- Rounding Numbers (Geogebra Interactive)
Lesson 2: Estimate Sums and Differences
Downloads Video Tutorials
Downloads Video Tutorials
- Estimating Sums - old version (Mr. Bowen)
- Estimating Decimal Sums (Khan Academy)
- Estimating Decimal Differences (Khan Academy)
- Estimate Decimal Sums and Differences (MrMathBlog)
Lesson 3: Problem-Solving Investigation: Estimate or Exact Answer
Downloads
Downloads
Lesson 4: Hands-On: Add Decimals Using Base Ten Blocks
Downloads Video Tutorials
Downloads Video Tutorials
- Add Decimals with Base Ten Blocks (LearnZillion)
- Decimal Addition with Base Ten Blocks (MrMathBlog)
- Adding 3-Digit Numbers (Khan Academy)
- How Carrying Works (Khan Academy)
Lesson 5: Hands-On: Add Decimals Using Models
Downloads Video Tutorials
Downloads Video Tutorials
- Addition and Subtraction with Decimal Squares (Mr. Bowen)
Lesson 6: Add Decimals
Downloads Video Tutorials
Downloads Video Tutorials
- Add and Subtract Decimals (Mr. Bowen)
- Adding Decimals 1 (Khan Academy)
- Adding Decimals 2 (Khan Academy)
- Adding Decimals 3 (Khan Academy)
- Adding Decimals Word Problem (Khan Academy)
- Add Decimals (MrMathBlog)
Lesson 7: Addition Properties
Downloads Video Tutorials
Downloads Video Tutorials
- Commutative and Associative Properties (Mr. Bowen)
- Commutative Law of Addition (Khan Academy)
- Associative Law of Addition (Khan Academy)
Lesson 8: Hands-On: Subtract Decimals Using Base Ten Blocks
Downloads Video Tutorials
Downloads Video Tutorials
- Subtract Decimals with Base Ten Blocks (LearnZillion)
- Decimal Subtraction with Base Ten Blocks (MrMathBlog)
- Subtracting with Regrouping 1 (Khan Academy)
- Subtracting with Regrouping 2 (Khan Academy)
- Subtracting with Regrouping Twice (Khan Academy)
- Subtraction with Zeros (Khan Academy)
- Subtraction World Problem (Khan Academy)
Lesson 9: Hands-On: Add Decimals Using Models
Downloads Video Tutorials
Downloads Video Tutorials
- Addition and Subtraction with Decimal Squares (Mr. Bowen)
Lesson 10: Subtract Decimals
Downloads Video Tutorials
Downloads Video Tutorials
- Add and Subtract Decimals (Mr. Bowen)
- Subtracting Decimals 1 (Khan Academy)
- Subtracting Decimals 2 (Khan Academy)
- Subtracting Decimals Word Problem (Khan Academy)
- Subtract Decimals (MrMathBlog)
OK Supplemental Lesson: Add and Subtract Money
Downloads
Video Tutorials
Downloads
Video Tutorials
- Problem Solving: Add and Subtract Money (MrMathBlog)
OK Supplemental Lesson:
Downloads
Video Tutorials
Games and Interactives
Downloads
Video Tutorials
Games and Interactives
OK Supplemental Lesson:
Downloads
Video Tutorials
Games and Interactives
Downloads
Video Tutorials
Games and Interactives