Subtracting with Grouping and Regrouping
Free to teach as-is — the teacher guide, student handout, and slides are included.
Free — we'll email you an access link. Google Docs format.
Objective
I can subtract multi-digit numbers with grouping and regrouping to solve real-world problems.
Part 1 of 4
Warm-up video
mathantics · 6:57Vetted channel
We don't generate video — this one is by mathantics on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
Unlike addition, the order of numbers matters in subtraction; you must subtract the number you are taking away from the first number.
- 2
When subtracting multi-digit numbers, always start with the ones place column and work your way to the left.
- 3
When the top digit is smaller than the bottom digit, you need to borrow from the digit to the left, which represents borrowing a 10.
Part 3 of 4
Practice
9 questions
Why is the order of numbers important in subtraction problems, but not in addition problems?
When rewriting a subtraction problem in a stacked format, which number goes on top?
Part 4 of 4
Exit ticket
Quick comprehension check
“Solve the following real-world problem using multi-digit subtraction with regrouping: A store had 305 items in stock. After selling some items, they had 287 items left. How many items did the store sell?”
Sample answer included in the free materials
Get the materials
Teacher guide, student handout, and slides — free, in Google Docs format
Teacher Guide
Complete lesson plan with answer keys and alternate activities
Student Handout
Printable worksheet
Slides
Ready to present
We'll ask for your email to send your access link — nothing else.
Teaching a group at a different level?
Where are your students right now? We'll rebuild this lesson to match — including the teacher guide, student handout, and slides, saved to your Google Drive.
Adapt This Lesson
