Workbook Detail
Addition Addition Three Digit — Set 45
202 + 125 = ___
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Answer: 327
- Operand1
- 202
- Operand2
- 125
- Operator
- +
106 + 722 = ___
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Answer: 828
- Operand1
- 106
- Operand2
- 722
- Operator
- +
306 + 281 = ___
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Answer: 587
- Operand1
- 306
- Operand2
- 281
- Operator
- +
427 + 162 = ___
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Answer: 589
- Operand1
- 427
- Operand2
- 162
- Operator
- +
483 + 511 = ___
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Answer: 994
- Operand1
- 483
- Operand2
- 511
- Operator
- +
710 + 259 = ___
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Answer: 969
- Operand1
- 710
- Operand2
- 259
- Operator
- +
205 + 441 = ___
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Answer: 646
- Operand1
- 205
- Operand2
- 441
- Operator
- +
440 + 215 = ___
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Answer: 655
- Operand1
- 440
- Operand2
- 215
- Operator
- +
632 + 213 = ___
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Answer: 845
- Operand1
- 632
- Operand2
- 213
- Operator
- +
676 + 303 = ___
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Answer: 979
- Operand1
- 676
- Operand2
- 303
- Operator
- +
512 + 357 = ___
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Answer: 869
- Operand1
- 512
- Operand2
- 357
- Operator
- +
489 + 510 = ___
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Answer: 999
- Operand1
- 489
- Operand2
- 510
- Operator
- +
253 + 231 = ___
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Answer: 484
- Operand1
- 253
- Operand2
- 231
- Operator
- +
332 + 603 = ___
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Answer: 935
- Operand1
- 332
- Operand2
- 603
- Operator
- +
517 + 220 = ___
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Answer: 737
- Operand1
- 517
- Operand2
- 220
- Operator
- +
171 + 225 = ___
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Answer: 396
- Operand1
- 171
- Operand2
- 225
- Operator
- +
440 + 535 = ___
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Answer: 975
- Operand1
- 440
- Operand2
- 535
- Operator
- +
352 + 110 = ___
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Answer: 462
- Operand1
- 352
- Operand2
- 110
- Operator
- +
281 + 406 = ___
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Answer: 687
- Operand1
- 281
- Operand2
- 406
- Operator
- +
335 + 163 = ___
Show answer
Answer: 498
- Operand1
- 335
- Operand2
- 163
- 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.