Workbook Detail
Addition Addition Three Digit — Set 50
122 + 232 = ___
Show answer
Answer: 354
- Operand1
- 122
- Operand2
- 232
- Operator
- +
121 + 158 = ___
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Answer: 279
- Operand1
- 121
- Operand2
- 158
- Operator
- +
515 + 103 = ___
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Answer: 618
- Operand1
- 515
- Operand2
- 103
- Operator
- +
320 + 106 = ___
Show answer
Answer: 426
- Operand1
- 320
- Operand2
- 106
- Operator
- +
521 + 155 = ___
Show answer
Answer: 676
- Operand1
- 521
- Operand2
- 155
- Operator
- +
451 + 547 = ___
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Answer: 998
- Operand1
- 451
- Operand2
- 547
- Operator
- +
373 + 404 = ___
Show answer
Answer: 777
- Operand1
- 373
- Operand2
- 404
- Operator
- +
220 + 125 = ___
Show answer
Answer: 345
- Operand1
- 220
- Operand2
- 125
- Operator
- +
711 + 147 = ___
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Answer: 858
- Operand1
- 711
- Operand2
- 147
- Operator
- +
468 + 500 = ___
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Answer: 968
- Operand1
- 468
- Operand2
- 500
- Operator
- +
540 + 301 = ___
Show answer
Answer: 841
- Operand1
- 540
- Operand2
- 301
- Operator
- +
411 + 102 = ___
Show answer
Answer: 513
- Operand1
- 411
- Operand2
- 102
- Operator
- +
114 + 565 = ___
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Answer: 679
- Operand1
- 114
- Operand2
- 565
- Operator
- +
430 + 107 = ___
Show answer
Answer: 537
- Operand1
- 430
- Operand2
- 107
- Operator
- +
750 + 148 = ___
Show answer
Answer: 898
- Operand1
- 750
- Operand2
- 148
- Operator
- +
420 + 568 = ___
Show answer
Answer: 988
- Operand1
- 420
- Operand2
- 568
- Operator
- +
223 + 712 = ___
Show answer
Answer: 935
- Operand1
- 223
- Operand2
- 712
- Operator
- +
526 + 473 = ___
Show answer
Answer: 999
- Operand1
- 526
- Operand2
- 473
- Operator
- +
392 + 206 = ___
Show answer
Answer: 598
- Operand1
- 392
- Operand2
- 206
- Operator
- +
527 + 362 = ___
Show answer
Answer: 889
- Operand1
- 527
- Operand2
- 362
- 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.