Workbook Detail
Addition Addition Three Digit — Set 64
511 + 312 = ___
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Answer: 823
- Operand1
- 511
- Operand2
- 312
- Operator
- +
223 + 400 = ___
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Answer: 623
- Operand1
- 223
- Operand2
- 400
- Operator
- +
361 + 327 = ___
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Answer: 688
- Operand1
- 361
- Operand2
- 327
- Operator
- +
360 + 510 = ___
Show answer
Answer: 870
- Operand1
- 360
- Operand2
- 510
- Operator
- +
330 + 204 = ___
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Answer: 534
- Operand1
- 330
- Operand2
- 204
- Operator
- +
243 + 446 = ___
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Answer: 689
- Operand1
- 243
- Operand2
- 446
- Operator
- +
236 + 440 = ___
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Answer: 676
- Operand1
- 236
- Operand2
- 440
- Operator
- +
616 + 263 = ___
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Answer: 879
- Operand1
- 616
- Operand2
- 263
- Operator
- +
121 + 218 = ___
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Answer: 339
- Operand1
- 121
- Operand2
- 218
- Operator
- +
531 + 437 = ___
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Answer: 968
- Operand1
- 531
- Operand2
- 437
- Operator
- +
142 + 606 = ___
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Answer: 748
- Operand1
- 142
- Operand2
- 606
- Operator
- +
141 + 407 = ___
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Answer: 548
- Operand1
- 141
- Operand2
- 407
- Operator
- +
107 + 642 = ___
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Answer: 749
- Operand1
- 107
- Operand2
- 642
- Operator
- +
202 + 463 = ___
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Answer: 665
- Operand1
- 202
- Operand2
- 463
- Operator
- +
240 + 451 = ___
Show answer
Answer: 691
- Operand1
- 240
- Operand2
- 451
- Operator
- +
206 + 561 = ___
Show answer
Answer: 767
- Operand1
- 206
- Operand2
- 561
- Operator
- +
108 + 550 = ___
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Answer: 658
- Operand1
- 108
- Operand2
- 550
- Operator
- +
521 + 275 = ___
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Answer: 796
- Operand1
- 521
- Operand2
- 275
- Operator
- +
337 + 140 = ___
Show answer
Answer: 477
- Operand1
- 337
- Operand2
- 140
- Operator
- +
621 + 235 = ___
Show answer
Answer: 856
- Operand1
- 621
- Operand2
- 235
- 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.