Workbook Detail
Addition Addition Three Digit — Set 15
323 + 630 = ___
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Answer: 953
- Operand1
- 323
- Operand2
- 630
- Operator
- +
611 + 315 = ___
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Answer: 926
- Operand1
- 611
- Operand2
- 315
- Operator
- +
462 + 233 = ___
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Answer: 695
- Operand1
- 462
- Operand2
- 233
- Operator
- +
348 + 611 = ___
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Answer: 959
- Operand1
- 348
- Operand2
- 611
- Operator
- +
215 + 623 = ___
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Answer: 838
- Operand1
- 215
- Operand2
- 623
- Operator
- +
849 + 150 = ___
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Answer: 999
- Operand1
- 849
- Operand2
- 150
- Operator
- +
131 + 653 = ___
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Answer: 784
- Operand1
- 131
- Operand2
- 653
- Operator
- +
640 + 232 = ___
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Answer: 872
- Operand1
- 640
- Operand2
- 232
- Operator
- +
712 + 264 = ___
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Answer: 976
- Operand1
- 712
- Operand2
- 264
- Operator
- +
222 + 506 = ___
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Answer: 728
- Operand1
- 222
- Operand2
- 506
- Operator
- +
538 + 161 = ___
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Answer: 699
- Operand1
- 538
- Operand2
- 161
- Operator
- +
203 + 396 = ___
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Answer: 599
- Operand1
- 203
- Operand2
- 396
- Operator
- +
506 + 281 = ___
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Answer: 787
- Operand1
- 506
- Operand2
- 281
- Operator
- +
153 + 305 = ___
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Answer: 458
- Operand1
- 153
- Operand2
- 305
- Operator
- +
250 + 534 = ___
Show answer
Answer: 784
- Operand1
- 250
- Operand2
- 534
- Operator
- +
Teaching Notes
Download this free addition three digit math worksheet. Uniquely generated with an answer key — great for homework, practice, or assessment.
Features
- Printable PDF format
- Answer key included
- Multiple difficulty levels
- Classroom and home friendly
How to Use These Worksheets
- Select a three digit set.
- Print or use on-screen.
- Check answers and practice again.
Tips
- Start with easier sets and move up gradually.
- Practice in short sessions (10–15 minutes).
- Review mistakes and redo similar problems.
Frequently Asked Questions
How do I use this Addition Three Digit Math Worksheet worksheet?
Print the worksheet and complete the problems. Each set number generates a unique arrangement. Use the same set number for all students in a class for consistent assessment.
Is there an answer key?
Yes — every worksheet includes a complete answer key. Print it separately or view it on screen.