Let's Subtract With Regrouping
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Objective
I can subtract two-digit numbers with regrouping.
Part 1 of 4
Warm-up video
Khan Academy · 2:47Vetted channel
We don't generate video — this one is by Khan Academy 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
When subtracting, if the top digit is smaller than the bottom digit in the same place, you need to regroup.
- 2
To regroup, you take one from the tens place and add ten to the ones place.
- 3
Regrouping helps you subtract by changing how a number is represented without changing its total value.
Part 3 of 4
Practice
4 questions
What does it mean to "regroup" when you are subtracting numbers?
Solve the following subtraction problem by regrouping: 54 - 27. Explain the first step of regrouping.
Part 4 of 4
Exit ticket
Quick comprehension check
“Subtract 63 - 28. Show your work, including any regrouping.”
Sample answer included in the free materials
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