Two-Digit Subtraction with Regrouping
9th Grade · Math · 45 min
Lesson Preview
Learning Objective
I can subtract two-digit numbers with regrouping.
- 1
When subtracting two-digit numbers, you first look at the ones place, and if the top digit is smaller than the bottom digit, you need to regroup.
- 2
Regrouping involves taking one ten from the tens place and adding ten ones to the ones place.
- 3
For example, 83 can be thought of as seven tens and thirteen ones after regrouping, which allows you to subtract in the ones place.
