Comprehensive worksheet featuring a mix of three-digit addition and subtraction problems arranged in vertical columns.
Three-digit addition and subtraction worksheet with vertical math problems for elementary students.
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ID: #346979
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Show Answer Key & Explanations
Step-by-step solution for: Year 3 Math Worksheets to Print | 2nd grade math worksheets, Math ...
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Show Answer Key & Explanations
Step-by-step solution for: Year 3 Math Worksheets to Print | 2nd grade math worksheets, Math ...
Let’s go through each problem one by one, solving them carefully.
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Row 1:
1. 804 - 188
804 - 100 = 704
704 - 80 = 624
624 - 8 = 616
2. 851 - 195
851 - 200 = 651 → but we subtracted 5 too many, so add back 5 → 651 + 5 = 656
3. 939 + 336
900 + 300 = 1200
39 + 36 = 75
1200 + 75 = 1275
4. 740 + 797
740 + 800 = 1540 → minus 3 → 1540 - 3 = 1537
5. 242 + 119
242 + 100 = 342
342 + 19 = 361
6. 973 + 186
973 + 200 = 1173 → minus 14 → 1173 - 14 = 1159
7. 165 - 104
165 - 100 = 65
65 - 4 = 61
---
Row 2:
8. 419 - 385
419 - 300 = 119
119 - 85 = 34 → 34
9. 910 + 639
910 + 600 = 1510
1510 + 39 = 1549
10. 182 + 509
182 + 500 = 682
682 + 9 = 691
11. 629 - 220
629 - 200 = 429
429 - 20 = 409
12. 747 + 434
747 + 400 = 1147
1147 + 34 = 1181
13. 507 - 504
507 - 500 = 7
7 - 4 = 3
14. 468 - 164
468 - 100 = 368
368 - 64 = 304 → 304
---
Row 3:
15. 380 + 369
380 + 300 = 680
680 + 69 = 749
16. 676 + 380
676 + 300 = 976
976 + 80 = 1056
17. 470 - 366
470 - 300 = 170
170 - 66 = 104 → 104
18. 439 + 747
439 + 700 = 1139
1139 + 47 = 1186
19. 551 - 368
551 - 300 = 251
251 - 68 = 183 → 183
20. 100 + 502
100 + 500 = 600
600 + 2 = 602
21. 619 - 579
619 - 500 = 119
119 - 79 = 40 → 40
---
Row 4:
22. 774 + 234
774 + 200 = 974
974 + 34 = 1008
23. 998 - 805
998 - 800 = 198
198 - 5 = 193
24. 720 + 726
720 + 700 = 1420
1420 + 26 = 1446
25. 911 + 288
911 + 200 = 1111
1111 + 88 = 1199
26. 201 - 127
201 - 100 = 101
101 - 27 = 74 → 74
27. 379 + 802
379 + 800 = 1179
1179 + 2 = 1181
28. 640 + 353
640 + 300 = 940
940 + 53 = 993
---
Row 5:
29. 552 + 172
552 + 100 = 652
652 + 72 = 724
30. 519 + 258
519 + 200 = 719
719 + 58 = 777
31. 922 - 839
922 - 800 = 122
122 - 39 = 83 → 83
32. 473 + 647
473 + 600 = 1073
1073 + 47 = 1120
33. 380 - 280
380 - 200 = 180
180 - 80 = 100
34. 221 - 127
221 - 100 = 121
121 - 27 = 94 → 94
35. 535 + 491
535 + 400 = 935
935 + 91 = 1026
---
Row 6:
36. 541 + 306
541 + 300 = 841
841 + 6 = 847
37. 776 - 292
776 - 200 = 576
576 - 92 = 484 → 484
38. 154 + 468
154 + 400 = 554
554 + 68 = 622
39. 295 - 106
295 - 100 = 195
195 - 6 = 189
40. 931 - 230
931 - 200 = 731
731 - 30 = 701
41. 549 + 563
549 + 500 = 1049
1049 + 63 = 1112
42. 544 + 382
544 + 300 = 844
844 + 82 = 926
---
Row 7:
43. 401 + 553
401 + 500 = 901
901 + 53 = 954
44. 161 + 627
161 + 600 = 761
761 + 27 = 788
45. 229 - 199
229 - 200 = 29 → but we subtracted 1 too many, so add 1 → 29 + 1 = 30
46. 644 + 728
644 + 700 = 1344
1344 + 28 = 1372
47. 221 - 123
221 - 100 = 121
121 - 23 = 98 → 98
48. 446 + 550
446 + 500 = 946
946 + 50 = 996
49. 871 - 147
871 - 100 = 771
771 - 47 = 724 → 724
---
Final Answer:
616, 656, 1275, 1537, 361, 1159, 61, 34, 1549, 691, 409, 1181, 3, 304, 749, 1056, 104, 1186, 183, 602, 40, 1008, 193, 1446, 1199, 74, 1181, 993, 724, 777, 83, 1120, 100, 94, 1026, 847, 484, 622, 189, 701, 1112, 926, 954, 788, 30, 1372, 98, 996, 724
---
Row 1:
1. 804 - 188
804 - 100 = 704
704 - 80 = 624
624 - 8 = 616
2. 851 - 195
851 - 200 = 651 → but we subtracted 5 too many, so add back 5 → 651 + 5 = 656
3. 939 + 336
900 + 300 = 1200
39 + 36 = 75
1200 + 75 = 1275
4. 740 + 797
740 + 800 = 1540 → minus 3 → 1540 - 3 = 1537
5. 242 + 119
242 + 100 = 342
342 + 19 = 361
6. 973 + 186
973 + 200 = 1173 → minus 14 → 1173 - 14 = 1159
7. 165 - 104
165 - 100 = 65
65 - 4 = 61
---
Row 2:
8. 419 - 385
419 - 300 = 119
119 - 85 = 34 → 34
9. 910 + 639
910 + 600 = 1510
1510 + 39 = 1549
10. 182 + 509
182 + 500 = 682
682 + 9 = 691
11. 629 - 220
629 - 200 = 429
429 - 20 = 409
12. 747 + 434
747 + 400 = 1147
1147 + 34 = 1181
13. 507 - 504
507 - 500 = 7
7 - 4 = 3
14. 468 - 164
468 - 100 = 368
368 - 64 = 304 → 304
---
Row 3:
15. 380 + 369
380 + 300 = 680
680 + 69 = 749
16. 676 + 380
676 + 300 = 976
976 + 80 = 1056
17. 470 - 366
470 - 300 = 170
170 - 66 = 104 → 104
18. 439 + 747
439 + 700 = 1139
1139 + 47 = 1186
19. 551 - 368
551 - 300 = 251
251 - 68 = 183 → 183
20. 100 + 502
100 + 500 = 600
600 + 2 = 602
21. 619 - 579
619 - 500 = 119
119 - 79 = 40 → 40
---
Row 4:
22. 774 + 234
774 + 200 = 974
974 + 34 = 1008
23. 998 - 805
998 - 800 = 198
198 - 5 = 193
24. 720 + 726
720 + 700 = 1420
1420 + 26 = 1446
25. 911 + 288
911 + 200 = 1111
1111 + 88 = 1199
26. 201 - 127
201 - 100 = 101
101 - 27 = 74 → 74
27. 379 + 802
379 + 800 = 1179
1179 + 2 = 1181
28. 640 + 353
640 + 300 = 940
940 + 53 = 993
---
Row 5:
29. 552 + 172
552 + 100 = 652
652 + 72 = 724
30. 519 + 258
519 + 200 = 719
719 + 58 = 777
31. 922 - 839
922 - 800 = 122
122 - 39 = 83 → 83
32. 473 + 647
473 + 600 = 1073
1073 + 47 = 1120
33. 380 - 280
380 - 200 = 180
180 - 80 = 100
34. 221 - 127
221 - 100 = 121
121 - 27 = 94 → 94
35. 535 + 491
535 + 400 = 935
935 + 91 = 1026
---
Row 6:
36. 541 + 306
541 + 300 = 841
841 + 6 = 847
37. 776 - 292
776 - 200 = 576
576 - 92 = 484 → 484
38. 154 + 468
154 + 400 = 554
554 + 68 = 622
39. 295 - 106
295 - 100 = 195
195 - 6 = 189
40. 931 - 230
931 - 200 = 731
731 - 30 = 701
41. 549 + 563
549 + 500 = 1049
1049 + 63 = 1112
42. 544 + 382
544 + 300 = 844
844 + 82 = 926
---
Row 7:
43. 401 + 553
401 + 500 = 901
901 + 53 = 954
44. 161 + 627
161 + 600 = 761
761 + 27 = 788
45. 229 - 199
229 - 200 = 29 → but we subtracted 1 too many, so add 1 → 29 + 1 = 30
46. 644 + 728
644 + 700 = 1344
1344 + 28 = 1372
47. 221 - 123
221 - 100 = 121
121 - 23 = 98 → 98
48. 446 + 550
446 + 500 = 946
946 + 50 = 996
49. 871 - 147
871 - 100 = 771
771 - 47 = 724 → 724
---
Final Answer:
616, 656, 1275, 1537, 361, 1159, 61, 34, 1549, 691, 409, 1181, 3, 304, 749, 1056, 104, 1186, 183, 602, 40, 1008, 193, 1446, 1199, 74, 1181, 993, 724, 777, 83, 1120, 100, 94, 1026, 847, 484, 622, 189, 701, 1112, 926, 954, 788, 30, 1372, 98, 996, 724
Parent Tip: Review the logic above to help your child master the concept of 3rd grade addition and subtraction worksheet.
