Workbook Detail
Addition Addition Three Digit — Set 14
210 + 684 = ___
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Answer: 894
- Operand1
- 210
- Operand2
- 684
- Operator
- +
153 + 225 = ___
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Answer: 378
- Operand1
- 153
- Operand2
- 225
- Operator
- +
512 + 255 = ___
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Answer: 767
- Operand1
- 512
- Operand2
- 255
- Operator
- +
410 + 282 = ___
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Answer: 692
- Operand1
- 410
- Operand2
- 282
- Operator
- +
103 + 430 = ___
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Answer: 533
- Operand1
- 103
- Operand2
- 430
- Operator
- +
721 + 256 = ___
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Answer: 977
- Operand1
- 721
- Operand2
- 256
- Operator
- +
736 + 251 = ___
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Answer: 987
- Operand1
- 736
- Operand2
- 251
- Operator
- +
713 + 106 = ___
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Answer: 819
- Operand1
- 713
- Operand2
- 106
- Operator
- +
210 + 325 = ___
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Answer: 535
- Operand1
- 210
- Operand2
- 325
- Operator
- +
640 + 137 = ___
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Answer: 777
- Operand1
- 640
- Operand2
- 137
- Operator
- +
200 + 228 = ___
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Answer: 428
- Operand1
- 200
- Operand2
- 228
- Operator
- +
212 + 456 = ___
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Answer: 668
- Operand1
- 212
- Operand2
- 456
- Operator
- +
261 + 210 = ___
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Answer: 471
- Operand1
- 261
- Operand2
- 210
- Operator
- +
305 + 252 = ___
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Answer: 557
- Operand1
- 305
- Operand2
- 252
- Operator
- +
342 + 453 = ___
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Answer: 795
- Operand1
- 342
- Operand2
- 453
- Operator
- +
330 + 411 = ___
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Answer: 741
- Operand1
- 330
- Operand2
- 411
- Operator
- +
525 + 320 = ___
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Answer: 845
- Operand1
- 525
- Operand2
- 320
- Operator
- +
144 + 542 = ___
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Answer: 686
- Operand1
- 144
- Operand2
- 542
- Operator
- +
300 + 231 = ___
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Answer: 531
- Operand1
- 300
- Operand2
- 231
- Operator
- +
443 + 545 = ___
Show answer
Answer: 988
- Operand1
- 443
- Operand2
- 545
- 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.