Workbook Detail
Addition Addition Three Digit — Set 77
563 + 135 = ___
Show answer
Answer: 698
- Operand1
- 563
- Operand2
- 135
- Operator
- +
320 + 459 = ___
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Answer: 779
- Operand1
- 320
- Operand2
- 459
- Operator
- +
521 + 404 = ___
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Answer: 925
- Operand1
- 521
- Operand2
- 404
- Operator
- +
211 + 255 = ___
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Answer: 466
- Operand1
- 211
- Operand2
- 255
- Operator
- +
222 + 726 = ___
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Answer: 948
- Operand1
- 222
- Operand2
- 726
- Operator
- +
200 + 405 = ___
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Answer: 605
- Operand1
- 200
- Operand2
- 405
- Operator
- +
545 + 341 = ___
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Answer: 886
- Operand1
- 545
- Operand2
- 341
- Operator
- +
600 + 244 = ___
Show answer
Answer: 844
- Operand1
- 600
- Operand2
- 244
- Operator
- +
662 + 102 = ___
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Answer: 764
- Operand1
- 662
- Operand2
- 102
- Operator
- +
770 + 207 = ___
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Answer: 977
- Operand1
- 770
- Operand2
- 207
- Operator
- +
301 + 483 = ___
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Answer: 784
- Operand1
- 301
- Operand2
- 483
- Operator
- +
110 + 385 = ___
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Answer: 495
- Operand1
- 110
- Operand2
- 385
- Operator
- +
141 + 247 = ___
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Answer: 388
- Operand1
- 141
- Operand2
- 247
- Operator
- +
742 + 122 = ___
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Answer: 864
- Operand1
- 742
- Operand2
- 122
- Operator
- +
614 + 310 = ___
Show answer
Answer: 924
- Operand1
- 614
- Operand2
- 310
- Operator
- +
370 + 515 = ___
Show answer
Answer: 885
- Operand1
- 370
- Operand2
- 515
- Operator
- +
600 + 273 = ___
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Answer: 873
- Operand1
- 600
- Operand2
- 273
- Operator
- +
517 + 462 = ___
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Answer: 979
- Operand1
- 517
- Operand2
- 462
- Operator
- +
318 + 620 = ___
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Answer: 938
- Operand1
- 318
- Operand2
- 620
- Operator
- +
149 + 200 = ___
Show answer
Answer: 349
- Operand1
- 149
- Operand2
- 200
- 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.