Workbook Detail
Addition Addition Three Digit — Set 71
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"question": "332 + 335 = ___",
"answer": 667
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"operand1": 131,
"operand2": 231,
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"question": "131 + 231 = ___",
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"operand1": 231,
"operand2": 320,
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"question": "231 + 320 = ___",
"answer": 551
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{
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"operand1": 137,
"operand2": 841,
"operator": "+",
"question": "137 + 841 = ___",
"answer": 978
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{
"id": 9,
"operand1": 631,
"operand2": 202,
"operator": "+",
"question": "631 + 202 = ___",
"answer": 833
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"operand1": 124,
"operand2": 661,
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"question": "124 + 661 = ___",
"answer": 785
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{
"id": 11,
"operand1": 374,
"operand2": 103,
"operator": "+",
"question": "374 + 103 = ___",
"answer": 477
},
{
"id": 12,
"operand1": 251,
"operand2": 231,
"operator": "+",
"question": "251 + 231 = ___",
"answer": 482
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{
"id": 13,
"operand1": 251,
"operand2": 745,
"operator": "+",
"question": "251 + 745 = ___",
"answer": 996
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{
"id": 14,
"operand1": 360,
"operand2": 627,
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"question": "360 + 627 = ___",
"answer": 987
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{
"id": 15,
"operand1": 136,
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"question": "136 + 250 = ___",
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{
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"question": "602 + 316 = ___",
"answer": 918
},
{
"id": 17,
"operand1": 160,
"operand2": 830,
"operator": "+",
"question": "160 + 830 = ___",
"answer": 990
},
{
"id": 18,
"operand1": 433,
"operand2": 131,
"operator": "+",
"question": "433 + 131 = ___",
"answer": 564
},
{
"id": 19,
"operand1": 411,
"operand2": 506,
"operator": "+",
"question": "411 + 506 = ___",
"answer": 917
},
{
"id": 20,
"operand1": 133,
"operand2": 142,
"operator": "+",
"question": "133 + 142 = ___",
"answer": 275
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}Teaching Notes
474
+122
292
+105
625
+340
340
+410
332
+335
131
+231
231
+320
137
+841
631
+202
124
+661
374
+103
251
+231
251
+745
360
+627
136
+250
602
+316
160
+830
433
+131
411
+506
133
+142
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.