Expanded Form (3-Digit) Worksheets for 2nd Grade
Write a three-digit number in expanded form, or find the number from its parts. 15 free printable worksheets, each with an answer key.
Save to PinterestFree Expanded Form (3-Digit) Worksheets
Click a worksheet to open the PDF, or grab the matching answer key. Every sheet prints on one page.
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Worksheet #15
Expanded Form (3-Digit): what children learn
Expanded form writes a number as the sum of the value of each digit, such as 300 + 40 + 7. It shows children that every digit is worth more than its face value.
Expanded Form (3-Digit): worked example
528 = 500 + __ + 8 20
The tens digit of 528 is 2, so its value is 20. 500 + 20 + 8 = 528.
Expanded Form (3-Digit): a common mistake to watch for
Kids often write the digit alone (2) in the tens spot instead of its value (20).
Expanded Form (3-Digit): how to help at home or in class
Write the digits of a number on three index cards, such as 6, 2, and 9, then add zeros so the cards read 600, 20, and 9. Stack them so the zeros hide and the cards combine into 629, then pull them apart again. Your child sees why 629 equals 600 + 20 + 9. Ready for number names when your child also handles a zero in the middle, as in 408 = 400 + 8.
What is on these Expanded Form (3-Digit) worksheets
This set has 15 different worksheets for 2nd grade, with 16 questions on each and a matching answer key for every sheet. The instruction printed on each worksheet is: “Write the number or the missing part of the expanded form.”
Example questions like the ones on these worksheets, with their answers:
- 918 = 900 + __ + 810
- 400 + 80 + 7 =487
- 828 = 800 + __ + 820
- 739 = __ + 30 + 9700
- 896 = __ + 90 + 6800
- 700 + 50 + 8 =758
- 700 + 30 + 8 =738
- 751 = 700 + __ + 150
Every answer on every sheet is checked by a separate program before the worksheet is published. How we check answers