Chapter 3.8
Subtraction with regrouping up to 100
What You'll Learn
Understand when and why regrouping is needed in subtraction problems
Apply the regrouping technique to subtract two-digit numbers up to 100
Recognize place value relationships between tens and ones during borrowing
Solve subtraction problems where the ones digit is smaller in the minuend
What You'll Practice
1
Subtracting two-digit numbers that require regrouping from the tens place
2
Completing subtraction problems with missing digits or blanks
3
Working through multi-step regrouping exercises up to 100
Why This Matters
Subtraction with regrouping is essential for everyday math like making change, measuring ingredients, and calculating time. This foundational skill prepares you for multi-digit subtraction, working with decimals, and solving word problems throughout your math education.
This Unit Includes
Practice exercises
Skills
Regrouping
Borrowing
Place Value
Two-Digit Subtraction
Mental Math
