Solve 528 - 213 using expanded form to show each step.

500 + 20 + 8 - (200 + 10 + 3) = (500 - 200) + (20 - 10) + (8 - 3) = 300 + 10 + 5 = 315

Explain the first step in subtracting 267 from 405 using expanded form, and why regrouping is necessary.

First, expand 405 into 400 + 0 + 5 and 267 into 200 + 60 + 7. Regrouping is needed because you cannot subtract 7 from 5 or 60 from 0.

600 + 80 + 2 + (100 + 40 + 9) = 700 + 120 + 11 = 700 + 100 + 20 + 10 + 1 = 831

4th GradeMath25 min

I can add and subtract three-digit numbers using expanded form to show regrouping.

4 min

3 Digit Subtraction Expanded Form WITH Regrouping

Ms. Howell’s Learning Channel

5 min

Key concepts students will learn:

•
When using expanded form for subtraction, you must expand each number into its hundreds, tens, and ones.
•
In the problem 803 - 147, you must regroup from the hundreds place because there is a zero in the tens place.
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After regrouping, 803 becomes 700 + 90 + 13, and the answer to 803 - 147 is 656.

10 min

3 questions • Short answer

5 min

“Solve 524 - 218 using expanded form to show the regrouping steps.”

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