Workbook Detail
Addition Addition Three Digit — Set 99
124 + 753 = ___
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Answer: 877
- Operand1
- 124
- Operand2
- 753
- Operator
- +
447 + 210 = ___
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Answer: 657
- Operand1
- 447
- Operand2
- 210
- Operator
- +
110 + 367 = ___
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Answer: 477
- Operand1
- 110
- Operand2
- 367
- Operator
- +
133 + 103 = ___
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Answer: 236
- Operand1
- 133
- Operand2
- 103
- Operator
- +
400 + 483 = ___
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Answer: 883
- Operand1
- 400
- Operand2
- 483
- Operator
- +
136 + 430 = ___
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Answer: 566
- Operand1
- 136
- Operand2
- 430
- Operator
- +
210 + 540 = ___
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Answer: 750
- Operand1
- 210
- Operand2
- 540
- Operator
- +
104 + 455 = ___
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Answer: 559
- Operand1
- 104
- Operand2
- 455
- Operator
- +
642 + 342 = ___
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Answer: 984
- Operand1
- 642
- Operand2
- 342
- Operator
- +
545 + 351 = ___
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Answer: 896
- Operand1
- 545
- Operand2
- 351
- Operator
- +
233 + 740 = ___
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Answer: 973
- Operand1
- 233
- Operand2
- 740
- Operator
- +
620 + 101 = ___
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Answer: 721
- Operand1
- 620
- Operand2
- 101
- Operator
- +
641 + 136 = ___
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Answer: 777
- Operand1
- 641
- Operand2
- 136
- Operator
- +
200 + 392 = ___
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Answer: 592
- Operand1
- 200
- Operand2
- 392
- Operator
- +
440 + 128 = ___
Show answer
Answer: 568
- Operand1
- 440
- Operand2
- 128
- Operator
- +
350 + 440 = ___
Show answer
Answer: 790
- Operand1
- 350
- Operand2
- 440
- 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.