Workbook Detail
Addition Addition Three Digit — Set 90
105 + 581 = ___
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Answer: 686
- Operand1
- 105
- Operand2
- 581
- Operator
- +
322 + 642 = ___
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Answer: 964
- Operand1
- 322
- Operand2
- 642
- Operator
- +
102 + 114 = ___
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Answer: 216
- Operand1
- 102
- Operand2
- 114
- Operator
- +
603 + 372 = ___
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Answer: 975
- Operand1
- 603
- Operand2
- 372
- Operator
- +
503 + 170 = ___
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Answer: 673
- Operand1
- 503
- Operand2
- 170
- Operator
- +
311 + 108 = ___
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Answer: 419
- Operand1
- 311
- Operand2
- 108
- Operator
- +
406 + 112 = ___
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Answer: 518
- Operand1
- 406
- Operand2
- 112
- Operator
- +
731 + 263 = ___
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Answer: 994
- Operand1
- 731
- Operand2
- 263
- Operator
- +
107 + 100 = ___
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Answer: 207
- Operand1
- 107
- Operand2
- 100
- Operator
- +
306 + 122 = ___
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Answer: 428
- Operand1
- 306
- Operand2
- 122
- Operator
- +
100 + 676 = ___
Show answer
Answer: 776
- Operand1
- 100
- Operand2
- 676
- Operator
- +
160 + 732 = ___
Show answer
Answer: 892
- Operand1
- 160
- Operand2
- 732
- Operator
- +
517 + 230 = ___
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Answer: 747
- Operand1
- 517
- Operand2
- 230
- Operator
- +
360 + 525 = ___
Show answer
Answer: 885
- Operand1
- 360
- Operand2
- 525
- Operator
- +
372 + 110 = ___
Show answer
Answer: 482
- Operand1
- 372
- Operand2
- 110
- Operator
- +
100 + 553 = ___
Show answer
Answer: 653
- Operand1
- 100
- Operand2
- 553
- Operator
- +
100 + 732 = ___
Show answer
Answer: 832
- Operand1
- 100
- Operand2
- 732
- Operator
- +
270 + 100 = ___
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Answer: 370
- Operand1
- 270
- Operand2
- 100
- Operator
- +
420 + 449 = ___
Show answer
Answer: 869
- Operand1
- 420
- Operand2
- 449
- Operator
- +
132 + 426 = ___
Show answer
Answer: 558
- Operand1
- 132
- Operand2
- 426
- 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.