Workbook Detail
Addition Addition Three Digit — Set 33
442 + 142 = ___
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Answer: 584
- Operand1
- 442
- Operand2
- 142
- Operator
- +
151 + 444 = ___
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Answer: 595
- Operand1
- 151
- Operand2
- 444
- Operator
- +
715 + 142 = ___
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Answer: 857
- Operand1
- 715
- Operand2
- 142
- Operator
- +
141 + 854 = ___
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Answer: 995
- Operand1
- 141
- Operand2
- 854
- Operator
- +
330 + 117 = ___
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Answer: 447
- Operand1
- 330
- Operand2
- 117
- Operator
- +
620 + 336 = ___
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Answer: 956
- Operand1
- 620
- Operand2
- 336
- Operator
- +
107 + 800 = ___
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Answer: 907
- Operand1
- 107
- Operand2
- 800
- Operator
- +
821 + 157 = ___
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Answer: 978
- Operand1
- 821
- Operand2
- 157
- Operator
- +
121 + 166 = ___
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Answer: 287
- Operand1
- 121
- Operand2
- 166
- Operator
- +
121 + 644 = ___
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Answer: 765
- Operand1
- 121
- Operand2
- 644
- Operator
- +
264 + 235 = ___
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Answer: 499
- Operand1
- 264
- Operand2
- 235
- Operator
- +
322 + 612 = ___
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Answer: 934
- Operand1
- 322
- Operand2
- 612
- Operator
- +
480 + 118 = ___
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Answer: 598
- Operand1
- 480
- Operand2
- 118
- Operator
- +
383 + 511 = ___
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Answer: 894
- Operand1
- 383
- Operand2
- 511
- Operator
- +
102 + 100 = ___
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Answer: 202
- Operand1
- 102
- Operand2
- 100
- Operator
- +
343 + 335 = ___
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Answer: 678
- Operand1
- 343
- Operand2
- 335
- Operator
- +
267 + 321 = ___
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Answer: 588
- Operand1
- 267
- Operand2
- 321
- Operator
- +
152 + 624 = ___
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Answer: 776
- Operand1
- 152
- Operand2
- 624
- Operator
- +
130 + 310 = ___
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Answer: 440
- Operand1
- 130
- Operand2
- 310
- Operator
- +
354 + 543 = ___
Show answer
Answer: 897
- Operand1
- 354
- Operand2
- 543
- 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.