3rd Grade Math Worksheets - Best Coloring Pages For Kids - Free Printable
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Step-by-step solution for: 3rd Grade Math Worksheets - Best Coloring Pages For Kids
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Show Answer Key & Explanations
Step-by-step solution for: 3rd Grade Math Worksheets - Best Coloring Pages For Kids
Let’s solve each addition problem step by step. We’ll add the numbers column by column, starting from the right (ones place), then tens, then hundreds. If a column adds up to 10 or more, we carry over to the next column.
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Problem 1: 478 + 347
- Ones: 8 + 7 = 15 → write 5, carry 1
- Tens: 7 + 4 + 1 (carry) = 12 → write 2, carry 1
- Hundreds: 4 + 3 + 1 = 8
→ 825
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Problem 2: 706 + 999
- Ones: 6 + 9 = 15 → write 5, carry 1
- Tens: 0 + 9 + 1 = 10 → write 0, carry 1
- Hundreds: 7 + 9 + 1 = 17 → write 7, carry 1 → thousands: 1
→ 1705
---
Problem 3: 231 + 239
- Ones: 1 + 9 = 10 → write 0, carry 1
- Tens: 3 + 3 + 1 = 7
- Hundreds: 2 + 2 = 4
→ 470
---
Problem 4: 568 + 103
- Ones: 8 + 3 = 11 → write 1, carry 1
- Tens: 6 + 0 + 1 = 7
- Hundreds: 5 + 1 = 6
→ 671
---
Problem 5: 349 + 109
- Ones: 9 + 9 = 18 → write 8, carry 1
- Tens: 4 + 0 + 1 = 5
- Hundreds: 3 + 1 = 4
→ 458
---
Problem 6: 498 + 123
- Ones: 8 + 3 = 11 → write 1, carry 1
- Tens: 9 + 2 + 1 = 12 → write 2, carry 1
- Hundreds: 4 + 1 + 1 = 6
→ 621
---
Problem 7: 780 + 129
- Ones: 0 + 9 = 9
- Tens: 8 + 2 = 10 → write 0, carry 1
- Hundreds: 7 + 1 + 1 = 9
→ 909
---
Problem 8: 494 + 555
- Ones: 4 + 5 = 9
- Tens: 9 + 5 = 14 → write 4, carry 1
- Hundreds: 4 + 5 + 1 = 10 → write 0, carry 1 → thousands: 1
→ 1049
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Problem 9: 375 + 197
- Ones: 5 + 7 = 12 → write 2, carry 1
- Tens: 7 + 9 + 1 = 17 → write 7, carry 1
- Hundreds: 3 + 1 + 1 = 5
→ 572
---
Problem 10: 800 + 271
- Ones: 0 + 1 = 1
- Tens: 0 + 7 = 7
- Hundreds: 8 + 2 = 10 → write 0, carry 1 → thousands: 1
→ 1071
---
Problem 11: 913 + 418
- Ones: 3 + 8 = 11 → write 1, carry 1
- Tens: 1 + 1 + 1 = 3
- Hundreds: 9 + 4 = 13 → write 3, carry 1 → thousands: 1
→ 1331
---
Problem 12: 419 + 233
- Ones: 9 + 3 = 12 → write 2, carry 1
- Tens: 1 + 3 + 1 = 5
- Hundreds: 4 + 2 = 6
→ 652
---
Problem 13: 789 + 854
- Ones: 9 + 4 = 13 → write 3, carry 1
- Tens: 8 + 5 + 1 = 14 → write 4, carry 1
- Hundreds: 7 + 8 + 1 = 16 → write 6, carry 1 → thousands: 1
→ 1643
---
Problem 14: 679 + 111
- Ones: 9 + 1 = 10 → write 0, carry 1
- Tens: 7 + 1 + 1 = 9
- Hundreds: 6 + 1 = 7
→ 790
---
Problem 15: 348 + 267
- Ones: 8 + 7 = 15 → write 5, carry 1
- Tens: 4 + 6 + 1 = 11 → write 1, carry 1
- Hundreds: 3 + 2 + 1 = 6
→ 615
---
Problem 16: 812 + 937
- Ones: 2 + 7 = 9
- Tens: 1 + 3 = 4
- Hundreds: 8 + 9 = 17 → write 7, carry 1 → thousands: 1
→ 1749
---
Problem 17: 872 + 931
- Ones: 2 + 1 = 3
- Tens: 7 + 3 = 10 → write 0, carry 1
- Hundreds: 8 + 9 + 1 = 18 → write 8, carry 1 → thousands: 1
→ 1803
---
Problem 18: 499 + 225
- Ones: 9 + 5 = 14 → write 4, carry 1
- Tens: 9 + 2 + 1 = 12 → write 2, carry 1
- Hundreds: 4 + 2 + 1 = 7
→ 724
---
Final Answer:
478 + 347 = 825
706 + 999 = 1705
231 + 239 = 470
568 + 103 = 671
349 + 109 = 458
498 + 123 = 621
780 + 129 = 909
494 + 555 = 1049
375 + 197 = 572
800 + 271 = 1071
913 + 418 = 1331
419 + 233 = 652
789 + 854 = 1643
679 + 111 = 790
348 + 267 = 615
812 + 937 = 1749
872 + 931 = 1803
499 + 225 = 724
---
Problem 1: 478 + 347
- Ones: 8 + 7 = 15 → write 5, carry 1
- Tens: 7 + 4 + 1 (carry) = 12 → write 2, carry 1
- Hundreds: 4 + 3 + 1 = 8
→ 825
---
Problem 2: 706 + 999
- Ones: 6 + 9 = 15 → write 5, carry 1
- Tens: 0 + 9 + 1 = 10 → write 0, carry 1
- Hundreds: 7 + 9 + 1 = 17 → write 7, carry 1 → thousands: 1
→ 1705
---
Problem 3: 231 + 239
- Ones: 1 + 9 = 10 → write 0, carry 1
- Tens: 3 + 3 + 1 = 7
- Hundreds: 2 + 2 = 4
→ 470
---
Problem 4: 568 + 103
- Ones: 8 + 3 = 11 → write 1, carry 1
- Tens: 6 + 0 + 1 = 7
- Hundreds: 5 + 1 = 6
→ 671
---
Problem 5: 349 + 109
- Ones: 9 + 9 = 18 → write 8, carry 1
- Tens: 4 + 0 + 1 = 5
- Hundreds: 3 + 1 = 4
→ 458
---
Problem 6: 498 + 123
- Ones: 8 + 3 = 11 → write 1, carry 1
- Tens: 9 + 2 + 1 = 12 → write 2, carry 1
- Hundreds: 4 + 1 + 1 = 6
→ 621
---
Problem 7: 780 + 129
- Ones: 0 + 9 = 9
- Tens: 8 + 2 = 10 → write 0, carry 1
- Hundreds: 7 + 1 + 1 = 9
→ 909
---
Problem 8: 494 + 555
- Ones: 4 + 5 = 9
- Tens: 9 + 5 = 14 → write 4, carry 1
- Hundreds: 4 + 5 + 1 = 10 → write 0, carry 1 → thousands: 1
→ 1049
---
Problem 9: 375 + 197
- Ones: 5 + 7 = 12 → write 2, carry 1
- Tens: 7 + 9 + 1 = 17 → write 7, carry 1
- Hundreds: 3 + 1 + 1 = 5
→ 572
---
Problem 10: 800 + 271
- Ones: 0 + 1 = 1
- Tens: 0 + 7 = 7
- Hundreds: 8 + 2 = 10 → write 0, carry 1 → thousands: 1
→ 1071
---
Problem 11: 913 + 418
- Ones: 3 + 8 = 11 → write 1, carry 1
- Tens: 1 + 1 + 1 = 3
- Hundreds: 9 + 4 = 13 → write 3, carry 1 → thousands: 1
→ 1331
---
Problem 12: 419 + 233
- Ones: 9 + 3 = 12 → write 2, carry 1
- Tens: 1 + 3 + 1 = 5
- Hundreds: 4 + 2 = 6
→ 652
---
Problem 13: 789 + 854
- Ones: 9 + 4 = 13 → write 3, carry 1
- Tens: 8 + 5 + 1 = 14 → write 4, carry 1
- Hundreds: 7 + 8 + 1 = 16 → write 6, carry 1 → thousands: 1
→ 1643
---
Problem 14: 679 + 111
- Ones: 9 + 1 = 10 → write 0, carry 1
- Tens: 7 + 1 + 1 = 9
- Hundreds: 6 + 1 = 7
→ 790
---
Problem 15: 348 + 267
- Ones: 8 + 7 = 15 → write 5, carry 1
- Tens: 4 + 6 + 1 = 11 → write 1, carry 1
- Hundreds: 3 + 2 + 1 = 6
→ 615
---
Problem 16: 812 + 937
- Ones: 2 + 7 = 9
- Tens: 1 + 3 = 4
- Hundreds: 8 + 9 = 17 → write 7, carry 1 → thousands: 1
→ 1749
---
Problem 17: 872 + 931
- Ones: 2 + 1 = 3
- Tens: 7 + 3 = 10 → write 0, carry 1
- Hundreds: 8 + 9 + 1 = 18 → write 8, carry 1 → thousands: 1
→ 1803
---
Problem 18: 499 + 225
- Ones: 9 + 5 = 14 → write 4, carry 1
- Tens: 9 + 2 + 1 = 12 → write 2, carry 1
- Hundreds: 4 + 2 + 1 = 7
→ 724
---
Final Answer:
478 + 347 = 825
706 + 999 = 1705
231 + 239 = 470
568 + 103 = 671
349 + 109 = 458
498 + 123 = 621
780 + 129 = 909
494 + 555 = 1049
375 + 197 = 572
800 + 271 = 1071
913 + 418 = 1331
419 + 233 = 652
789 + 854 = 1643
679 + 111 = 790
348 + 267 = 615
812 + 937 = 1749
872 + 931 = 1803
499 + 225 = 724
Parent Tip: Review the logic above to help your child master the concept of third grade math worksheets.
