Grade 3 Number Decomposition Worksheet
A worksheet for 3rd graders focusing on decomposing numbers into hundreds, tens, and ones, and understanding expanded form.
Includes
Standards
Number Decomposition Practice
Name:
Date:
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Read each question carefully and follow the instructions. Show your work where necessary.
Decompose each number into its hundreds, tens, and ones.
1. 345 = hundreds + tens + ones
2. 709 = hundreds + tens + ones
3. 120 = hundreds + tens + ones
4. 58 = hundreds + tens + ones
Write each number in expanded form.
5. 673
6. 92
7. 201
8. Which of the following is the expanded form of 482?
400 + 8 + 2
400 + 80 + 2
4 + 8 + 2
40 + 80 + 2
9. What number is represented by 5 hundreds + 3 tens + 6 ones?
536
563
5306
53
Read each statement and mark if it is True or False.
10. The number 250 can be decomposed as 2 hundreds, 5 tens, and 0 ones.
True
False
11. In the number 814, the digit '1' represents 100.
True
False
Match the number with its correct decomposition.
12. 65
a. 9 hundreds + 0 tens + 8 ones
13. 908
b. 6 tens + 5 ones
14. 370
c. 3 hundreds + 7 tens + 0 ones
15. Sarah has 2 hundreds, 4 tens, and 7 ones. What number does Sarah have?
16. A number has 6 in the tens place, 3 in the hundreds place, and 1 in the ones place. What is the number?