4 Digit Addition Worksheets | Free and Printable Resources - Free Printable
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Show Answer Key & Explanations
Step-by-step solution for: 4 Digit Addition Worksheets | Free and Printable Resources
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Show Answer Key & Explanations
Step-by-step solution for: 4 Digit Addition Worksheets | Free and Printable Resources
Let’s solve each addition problem step by step. We’ll add the two numbers in each column, starting from the rightmost digit (ones place) and moving left, carrying over if needed.
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Top Left Box:
1. 5756 + 2671
→ 6+1=7, 5+7=12 (write 2, carry 1), 7+6+1=14 (write 4, carry 1), 5+2+1=8 → 8427
2. 6506 + 8579
→ 6+9=15 (write 5, carry 1), 0+7+1=8, 5+5=10 (write 0, carry 1), 6+8+1=15 → 15085
3. 2805 + 8553
→ 5+3=8, 0+5=5, 8+5=13 (write 3, carry 1), 2+8+1=11 → 11358
4. 1532 + 6968
→ 2+8=10 (write 0, carry 1), 3+6+1=10 (write 0, carry 1), 5+9+1=15 (write 5, carry 1), 1+6+1=8 → 8500
5. 2185 + 8824
→ 5+4=9, 8+2=10 (write 0, carry 1), 1+8+1=10 (write 0, carry 1), 2+8+1=11 → 11009
---
Second Row – Top Left Box:
6. 3260 + 1842
→ 0+2=2, 6+4=10 (write 0, carry 1), 2+8+1=11 (write 1, carry 1), 3+1+1=5 → 5102
7. 2447 + 7286
→ 7+6=13 (write 3, carry 1), 4+8+1=13 (write 3, carry 1), 4+2+1=7, 2+7=9 → 9733
8. 8858 + 4339
→ 8+9=17 (write 7, carry 1), 5+3+1=9, 8+3=11 (write 1, carry 1), 8+4+1=13 → 13197
9. 9960 + 7175
→ 0+5=5, 6+7=13 (write 3, carry 1), 9+1+1=11 (write 1, carry 1), 9+7+1=17 → 17135
10. 4480 + 9482
→ 0+2=2, 8+8=16 (write 6, carry 1), 4+4+1=9, 4+9=13 → 13962
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Third Row – Top Left Box:
11. 9109 + 5709
→ 9+9=18 (write 8, carry 1), 0+0+1=1, 1+7=8, 9+5=14 → 14818
12. 1014 + 4073
→ 4+3=7, 1+7=8, 0+0=0, 1+4=5 → 5087
13. 3681 + 8131
→ 1+1=2, 8+3=11 (write 1, carry 1), 6+1+1=8, 3+8=11 → 11812
14. 1240 + 4845
→ 0+5=5, 4+4=8, 2+8=10 (write 0, carry 1), 1+4+1=6 → 6085
15. 3016 + 4814
→ 6+4=10 (write 0, carry 1), 1+1+1=3, 0+8=8, 3+4=7 → 7830
---
Top Right Box:
16. 3246 + 2649
→ 6+9=15 (write 5, carry 1), 4+4+1=9, 2+6=8, 3+2=5 → 5895
17. 4297 + 3995
→ 7+5=12 (write 2, carry 1), 9+9+1=19 (write 9, carry 1), 2+9+1=12 (write 2, carry 1), 4+3+1=8 → 8292
18. 3688 + 3097
→ 8+7=15 (write 5, carry 1), 8+9+1=18 (write 8, carry 1), 6+0+1=7, 3+3=6 → 6785
19. 8898 + 7711
→ 8+1=9, 9+1=10 (write 0, carry 1), 8+7+1=16 (write 6, carry 1), 8+7+1=16 → 16609
20. 1644 + 4825
→ 4+5=9, 4+2=6, 6+8=14 (write 4, carry 1), 1+4+1=6 → 6469
---
Second Row – Top Right Box:
21. 2342 + 9323
→ 2+3=5, 4+2=6, 3+3=6, 2+9=11 → 11665
22. 1083 + 3254
→ 3+4=7, 8+5=13 (write 3, carry 1), 0+2+1=3, 1+3=4 → 4337
23. 3216 + 2186
→ 6+6=12 (write 2, carry 1), 1+8+1=10 (write 0, carry 1), 2+1+1=4, 3+2=5 → 5402
24. 1492 + 1593
→ 2+3=5, 9+9=18 (write 8, carry 1), 4+5+1=10 (write 0, carry 1), 1+1+1=3 → 3085
25. 7758 + 1705
→ 8+5=13 (write 3, carry 1), 5+0+1=6, 7+7=14 (write 4, carry 1), 7+1+1=9 → 9463
---
Third Row – Top Right Box:
26. 5805 + 4210
→ 5+0=5, 0+1=1, 8+2=10 (write 0, carry 1), 5+4+1=10 → 10015
27. 5195 + 8491
→ 5+1=6, 9+9=18 (write 8, carry 1), 1+4+1=6, 5+8=13 → 13686
28. 4446 + 1455
→ 6+5=11 (write 1, carry 1), 4+5+1=10 (write 0, carry 1), 4+4+1=9, 4+1=5 → 5901
29. 2404 + 1233
→ 4+3=7, 0+3=3, 4+2=6, 2+1=3 → 3637
30. 4235 + 2117
→ 5+7=12 (write 2, carry 1), 3+1+1=5, 2+1=3, 4+2=6 → 6352
---
Bottom Left Box:
31. 4686 + 1429
→ 6+9=15 (write 5, carry 1), 8+2+1=11 (write 1, carry 1), 6+4+1=11 (write 1, carry 1), 4+1+1=6 → 6115
32. 7778 + 2772
→ 8+2=10 (write 0, carry 1), 7+7+1=15 (write 5, carry 1), 7+7+1=15 (write 5, carry 1), 7+2+1=10 → 10550
33. 4226 + 7181
→ 6+1=7, 2+8=10 (write 0, carry 1), 2+1+1=4, 4+7=11 → 11407
34. 7079 + 3097
→ 9+7=16 (write 6, carry 1), 7+9+1=17 (write 7, carry 1), 0+0+1=1, 7+3=10 → 10176
35. 8163 + 4554
→ 3+4=7, 6+5=11 (write 1, carry 1), 1+5+1=7, 8+4=12 → 12717
---
Second Row – Bottom Left Box:
36. 1738 + 2668
→ 8+8=16 (write 6, carry 1), 3+6+1=10 (write 0, carry 1), 7+6+1=14 (write 4, carry 1), 1+2+1=4 → 4406
37. 5325 + 9510
→ 5+0=5, 2+1=3, 3+5=8, 5+9=14 → 14835
38. 3265 + 1088
→ 5+8=13 (write 3, carry 1), 6+8+1=15 (write 5, carry 1), 2+0+1=3, 3+1=4 → 4353
39. 7119 + 1301
→ 9+1=10 (write 0, carry 1), 1+0+1=2, 1+3=4, 7+1=8 → 8420
40. 1392 + 9223
→ 2+3=5, 9+2=11 (write 1, carry 1), 3+2+1=6, 1+9=10 → 10615
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Third Row – Bottom Left Box:
41. 1897 + 1904
→ 7+4=11 (write 1, carry 1), 9+0+1=10 (write 0, carry 1), 8+9+1=18 (write 8, carry 1), 1+1+1=3 → 3801
42. 4361 + 1064
→ 1+4=5, 6+6=12 (write 2, carry 1), 3+0+1=4, 4+1=5 → 5425
43. 6237 + 1102
→ 7+2=9, 3+0=3, 2+1=3, 6+1=7 → 7339
44. 6251 + 9239
→ 1+9=10 (write 0, carry 1), 5+3+1=9, 2+2=4, 6+9=15 → 15490
45. 1717 + 2304
→ 7+4=11 (write 1, carry 1), 1+0+1=2, 7+3=10 (write 0, carry 1), 1+2+1=4 → 4021
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Bottom Right Box:
46. 4926 + 9023
→ 6+3=9, 2+2=4, 9+0=9, 4+9=13 → 13949
47. 3261 + 7925
→ 1+5=6, 6+2=8, 2+9=11 (write 1, carry 1), 3+7+1=11 → 11186
48. 1423 + 8225
→ 3+5=8, 2+2=4, 4+2=6, 1+8=9 → 9648
49. 5074 + 4521
→ 4+1=5, 7+2=9, 0+5=5, 5+4=9 → 9595
50. 3895 + 1352
→ 5+2=7, 9+5=14 (write 4, carry 1), 8+3+1=12 (write 2, carry 1), 3+1+1=5 → 5247
---
Second Row – Bottom Right Box:
51. 7175 + 9280
→ 5+0=5, 7+8=15 (write 5, carry 1), 1+2+1=4, 7+9=16 → 16455
52. 7952 + 7468
→ 2+8=10 (write 0, carry 1), 5+6+1=12 (write 2, carry 1), 9+4+1=14 (write 4, carry 1), 7+7+1=15 → 15420
53. 7743 + 4237
→ 3+7=10 (write 0, carry 1), 4+3+1=8, 7+2=9, 7+4=11 → 11980
54. 6901 + 8694
→ 1+4=5, 0+9=9, 9+6=15 (write 5, carry 1), 6+8+1=15 → 15595
55. 4355 + 4688
→ 5+8=13 (write 3, carry 1), 5+8+1=14 (write 4, carry 1), 3+6+1=10 (write 0, carry 1), 4+4+1=9 → 9043
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Third Row – Bottom Right Box:
56. 5721 + 4929
→ 1+9=10 (write 0, carry 1), 2+2+1=5, 7+9=16 (write 6, carry 1), 5+4+1=10 → 10650
57. 5880 + 9445
→ 0+5=5, 8+4=12 (write 2, carry 1), 8+4+1=13 (write 3, carry 1), 5+9+1=15 → 15325
58. 7068 + 9717
→ 8+7=15 (write 5, carry 1), 6+1+1=8, 0+7=7, 7+9=16 → 16785
59. 1573 + 3028
→ 3+8=11 (write 1, carry 1), 7+2+1=10 (write 0, carry 1), 5+0+1=6, 1+3=4 → 4601
60. 3539 + 9841
→ 9+1=10 (write 0, carry 1), 3+4+1=8, 5+8=13 (write 3, carry 1), 3+9+1=13 → 13380
---
Final Answer:
Here are all the answers in order as they appear on the worksheet:
Top Left Box:
8427, 15085, 11358, 8500, 11009
5102, 9733, 13197, 17135, 13962
14818, 5087, 11812, 6085, 7830
Top Right Box:
5895, 8292, 6785, 16609, 6469
11665, 4337, 5402, 3085, 9463
10015, 13686, 5901, 3637, 6352
Bottom Left Box:
6115, 10550, 11407, 10176, 12717
4406, 14835, 4353, 8420, 10615
3801, 5425, 7339, 15490, 4021
Bottom Right Box:
13949, 11186, 9648, 9595, 5247
16455, 15420, 11980, 15595, 9043
10650, 15325, 16785, 4601, 13380
---
Top Left Box:
1. 5756 + 2671
→ 6+1=7, 5+7=12 (write 2, carry 1), 7+6+1=14 (write 4, carry 1), 5+2+1=8 → 8427
2. 6506 + 8579
→ 6+9=15 (write 5, carry 1), 0+7+1=8, 5+5=10 (write 0, carry 1), 6+8+1=15 → 15085
3. 2805 + 8553
→ 5+3=8, 0+5=5, 8+5=13 (write 3, carry 1), 2+8+1=11 → 11358
4. 1532 + 6968
→ 2+8=10 (write 0, carry 1), 3+6+1=10 (write 0, carry 1), 5+9+1=15 (write 5, carry 1), 1+6+1=8 → 8500
5. 2185 + 8824
→ 5+4=9, 8+2=10 (write 0, carry 1), 1+8+1=10 (write 0, carry 1), 2+8+1=11 → 11009
---
Second Row – Top Left Box:
6. 3260 + 1842
→ 0+2=2, 6+4=10 (write 0, carry 1), 2+8+1=11 (write 1, carry 1), 3+1+1=5 → 5102
7. 2447 + 7286
→ 7+6=13 (write 3, carry 1), 4+8+1=13 (write 3, carry 1), 4+2+1=7, 2+7=9 → 9733
8. 8858 + 4339
→ 8+9=17 (write 7, carry 1), 5+3+1=9, 8+3=11 (write 1, carry 1), 8+4+1=13 → 13197
9. 9960 + 7175
→ 0+5=5, 6+7=13 (write 3, carry 1), 9+1+1=11 (write 1, carry 1), 9+7+1=17 → 17135
10. 4480 + 9482
→ 0+2=2, 8+8=16 (write 6, carry 1), 4+4+1=9, 4+9=13 → 13962
---
Third Row – Top Left Box:
11. 9109 + 5709
→ 9+9=18 (write 8, carry 1), 0+0+1=1, 1+7=8, 9+5=14 → 14818
12. 1014 + 4073
→ 4+3=7, 1+7=8, 0+0=0, 1+4=5 → 5087
13. 3681 + 8131
→ 1+1=2, 8+3=11 (write 1, carry 1), 6+1+1=8, 3+8=11 → 11812
14. 1240 + 4845
→ 0+5=5, 4+4=8, 2+8=10 (write 0, carry 1), 1+4+1=6 → 6085
15. 3016 + 4814
→ 6+4=10 (write 0, carry 1), 1+1+1=3, 0+8=8, 3+4=7 → 7830
---
Top Right Box:
16. 3246 + 2649
→ 6+9=15 (write 5, carry 1), 4+4+1=9, 2+6=8, 3+2=5 → 5895
17. 4297 + 3995
→ 7+5=12 (write 2, carry 1), 9+9+1=19 (write 9, carry 1), 2+9+1=12 (write 2, carry 1), 4+3+1=8 → 8292
18. 3688 + 3097
→ 8+7=15 (write 5, carry 1), 8+9+1=18 (write 8, carry 1), 6+0+1=7, 3+3=6 → 6785
19. 8898 + 7711
→ 8+1=9, 9+1=10 (write 0, carry 1), 8+7+1=16 (write 6, carry 1), 8+7+1=16 → 16609
20. 1644 + 4825
→ 4+5=9, 4+2=6, 6+8=14 (write 4, carry 1), 1+4+1=6 → 6469
---
Second Row – Top Right Box:
21. 2342 + 9323
→ 2+3=5, 4+2=6, 3+3=6, 2+9=11 → 11665
22. 1083 + 3254
→ 3+4=7, 8+5=13 (write 3, carry 1), 0+2+1=3, 1+3=4 → 4337
23. 3216 + 2186
→ 6+6=12 (write 2, carry 1), 1+8+1=10 (write 0, carry 1), 2+1+1=4, 3+2=5 → 5402
24. 1492 + 1593
→ 2+3=5, 9+9=18 (write 8, carry 1), 4+5+1=10 (write 0, carry 1), 1+1+1=3 → 3085
25. 7758 + 1705
→ 8+5=13 (write 3, carry 1), 5+0+1=6, 7+7=14 (write 4, carry 1), 7+1+1=9 → 9463
---
Third Row – Top Right Box:
26. 5805 + 4210
→ 5+0=5, 0+1=1, 8+2=10 (write 0, carry 1), 5+4+1=10 → 10015
27. 5195 + 8491
→ 5+1=6, 9+9=18 (write 8, carry 1), 1+4+1=6, 5+8=13 → 13686
28. 4446 + 1455
→ 6+5=11 (write 1, carry 1), 4+5+1=10 (write 0, carry 1), 4+4+1=9, 4+1=5 → 5901
29. 2404 + 1233
→ 4+3=7, 0+3=3, 4+2=6, 2+1=3 → 3637
30. 4235 + 2117
→ 5+7=12 (write 2, carry 1), 3+1+1=5, 2+1=3, 4+2=6 → 6352
---
Bottom Left Box:
31. 4686 + 1429
→ 6+9=15 (write 5, carry 1), 8+2+1=11 (write 1, carry 1), 6+4+1=11 (write 1, carry 1), 4+1+1=6 → 6115
32. 7778 + 2772
→ 8+2=10 (write 0, carry 1), 7+7+1=15 (write 5, carry 1), 7+7+1=15 (write 5, carry 1), 7+2+1=10 → 10550
33. 4226 + 7181
→ 6+1=7, 2+8=10 (write 0, carry 1), 2+1+1=4, 4+7=11 → 11407
34. 7079 + 3097
→ 9+7=16 (write 6, carry 1), 7+9+1=17 (write 7, carry 1), 0+0+1=1, 7+3=10 → 10176
35. 8163 + 4554
→ 3+4=7, 6+5=11 (write 1, carry 1), 1+5+1=7, 8+4=12 → 12717
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Second Row – Bottom Left Box:
36. 1738 + 2668
→ 8+8=16 (write 6, carry 1), 3+6+1=10 (write 0, carry 1), 7+6+1=14 (write 4, carry 1), 1+2+1=4 → 4406
37. 5325 + 9510
→ 5+0=5, 2+1=3, 3+5=8, 5+9=14 → 14835
38. 3265 + 1088
→ 5+8=13 (write 3, carry 1), 6+8+1=15 (write 5, carry 1), 2+0+1=3, 3+1=4 → 4353
39. 7119 + 1301
→ 9+1=10 (write 0, carry 1), 1+0+1=2, 1+3=4, 7+1=8 → 8420
40. 1392 + 9223
→ 2+3=5, 9+2=11 (write 1, carry 1), 3+2+1=6, 1+9=10 → 10615
---
Third Row – Bottom Left Box:
41. 1897 + 1904
→ 7+4=11 (write 1, carry 1), 9+0+1=10 (write 0, carry 1), 8+9+1=18 (write 8, carry 1), 1+1+1=3 → 3801
42. 4361 + 1064
→ 1+4=5, 6+6=12 (write 2, carry 1), 3+0+1=4, 4+1=5 → 5425
43. 6237 + 1102
→ 7+2=9, 3+0=3, 2+1=3, 6+1=7 → 7339
44. 6251 + 9239
→ 1+9=10 (write 0, carry 1), 5+3+1=9, 2+2=4, 6+9=15 → 15490
45. 1717 + 2304
→ 7+4=11 (write 1, carry 1), 1+0+1=2, 7+3=10 (write 0, carry 1), 1+2+1=4 → 4021
---
Bottom Right Box:
46. 4926 + 9023
→ 6+3=9, 2+2=4, 9+0=9, 4+9=13 → 13949
47. 3261 + 7925
→ 1+5=6, 6+2=8, 2+9=11 (write 1, carry 1), 3+7+1=11 → 11186
48. 1423 + 8225
→ 3+5=8, 2+2=4, 4+2=6, 1+8=9 → 9648
49. 5074 + 4521
→ 4+1=5, 7+2=9, 0+5=5, 5+4=9 → 9595
50. 3895 + 1352
→ 5+2=7, 9+5=14 (write 4, carry 1), 8+3+1=12 (write 2, carry 1), 3+1+1=5 → 5247
---
Second Row – Bottom Right Box:
51. 7175 + 9280
→ 5+0=5, 7+8=15 (write 5, carry 1), 1+2+1=4, 7+9=16 → 16455
52. 7952 + 7468
→ 2+8=10 (write 0, carry 1), 5+6+1=12 (write 2, carry 1), 9+4+1=14 (write 4, carry 1), 7+7+1=15 → 15420
53. 7743 + 4237
→ 3+7=10 (write 0, carry 1), 4+3+1=8, 7+2=9, 7+4=11 → 11980
54. 6901 + 8694
→ 1+4=5, 0+9=9, 9+6=15 (write 5, carry 1), 6+8+1=15 → 15595
55. 4355 + 4688
→ 5+8=13 (write 3, carry 1), 5+8+1=14 (write 4, carry 1), 3+6+1=10 (write 0, carry 1), 4+4+1=9 → 9043
---
Third Row – Bottom Right Box:
56. 5721 + 4929
→ 1+9=10 (write 0, carry 1), 2+2+1=5, 7+9=16 (write 6, carry 1), 5+4+1=10 → 10650
57. 5880 + 9445
→ 0+5=5, 8+4=12 (write 2, carry 1), 8+4+1=13 (write 3, carry 1), 5+9+1=15 → 15325
58. 7068 + 9717
→ 8+7=15 (write 5, carry 1), 6+1+1=8, 0+7=7, 7+9=16 → 16785
59. 1573 + 3028
→ 3+8=11 (write 1, carry 1), 7+2+1=10 (write 0, carry 1), 5+0+1=6, 1+3=4 → 4601
60. 3539 + 9841
→ 9+1=10 (write 0, carry 1), 3+4+1=8, 5+8=13 (write 3, carry 1), 3+9+1=13 → 13380
---
Final Answer:
Here are all the answers in order as they appear on the worksheet:
Top Left Box:
8427, 15085, 11358, 8500, 11009
5102, 9733, 13197, 17135, 13962
14818, 5087, 11812, 6085, 7830
Top Right Box:
5895, 8292, 6785, 16609, 6469
11665, 4337, 5402, 3085, 9463
10015, 13686, 5901, 3637, 6352
Bottom Left Box:
6115, 10550, 11407, 10176, 12717
4406, 14835, 4353, 8420, 10615
3801, 5425, 7339, 15490, 4021
Bottom Right Box:
13949, 11186, 9648, 9595, 5247
16455, 15420, 11980, 15595, 9043
10650, 15325, 16785, 4601, 13380
Parent Tip: Review the logic above to help your child master the concept of addition worksheet 4th.
