Chapter 5.1
Adding and Subtracting Decimals: Essential Skills Made Easy
Master the art of decimal calculations with our comprehensive guide. Learn proper alignment techniques, practice with real-world examples, and boost your confidence in handling decimals.
What You'll Learn
Line up decimal points to align place values in addition and subtraction problems
Apply regrouping and borrowing techniques when adding and subtracting decimals
Add placeholder zeros to match place values when necessary
Verify decimal placement by checking that decimals align vertically in your work
What You'll Practice
1
Adding decimals with different numbers of decimal places
2
Subtracting decimals requiring borrowing across place values
3
Solving word problems involving money and measurements with decimals
4
Comparing and ordering decimal numbers by place value
Why This Matters
Adding and subtracting decimals is essential for handling money, measuring ingredients, calculating distances, and interpreting data in everyday life. This skill forms the foundation for more advanced math and appears constantly in shopping, budgeting, cooking, and science.
Before You Start — Make Sure You Can:
This Unit Includes
9 Video lessons
Practice exercises
Learning resources
Skills
Decimals
Place Value
Addition
Subtraction
Regrouping
Borrowing
Alignment
