Workbook Detail
Addition Addition Three Digit — Set 16
551 + 446 = ___
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Answer: 997
- Operand1
- 551
- Operand2
- 446
- Operator
- +
714 + 220 = ___
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Answer: 934
- Operand1
- 714
- Operand2
- 220
- Operator
- +
500 + 180 = ___
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Answer: 680
- Operand1
- 500
- Operand2
- 180
- Operator
- +
185 + 604 = ___
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Answer: 789
- Operand1
- 185
- Operand2
- 604
- Operator
- +
371 + 214 = ___
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Answer: 585
- Operand1
- 371
- Operand2
- 214
- Operator
- +
372 + 611 = ___
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Answer: 983
- Operand1
- 372
- Operand2
- 611
- Operator
- +
175 + 611 = ___
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Answer: 786
- Operand1
- 175
- Operand2
- 611
- Operator
- +
533 + 142 = ___
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Answer: 675
- Operand1
- 533
- Operand2
- 142
- Operator
- +
313 + 584 = ___
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Answer: 897
- Operand1
- 313
- Operand2
- 584
- Operator
- +
111 + 528 = ___
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Answer: 639
- Operand1
- 111
- Operand2
- 528
- Operator
- +
663 + 205 = ___
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Answer: 868
- Operand1
- 663
- Operand2
- 205
- Operator
- +
137 + 132 = ___
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Answer: 269
- Operand1
- 137
- Operand2
- 132
- Operator
- +
541 + 127 = ___
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Answer: 668
- Operand1
- 541
- Operand2
- 127
- Operator
- +
146 + 510 = ___
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Answer: 656
- Operand1
- 146
- Operand2
- 510
- Operator
- +
225 + 620 = ___
Show answer
Answer: 845
- Operand1
- 225
- Operand2
- 620
- Operator
- +
101 + 145 = ___
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Answer: 246
- Operand1
- 101
- Operand2
- 145
- Operator
- +
124 + 472 = ___
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Answer: 596
- Operand1
- 124
- Operand2
- 472
- Operator
- +
110 + 207 = ___
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Answer: 317
- Operand1
- 110
- Operand2
- 207
- Operator
- +
452 + 306 = ___
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Answer: 758
- Operand1
- 452
- Operand2
- 306
- Operator
- +
506 + 493 = ___
Show answer
Answer: 999
- Operand1
- 506
- Operand2
- 493
- 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.