Printable worksheet designed to help 5th graders practice adding and subtracting large numbers.

I'll solve each addition and subtraction problem step by step, then verify my answers.

Row 1:

1. 12356 - 1432
- 6 - 2 = 4
- 5 - 3 = 2
- 3 - 4: Need to borrow, so 13 - 4 = 9
- 1 (after borrowing) - 1 = 0
- 2 - 0 = 2
- 1 - 0 = 1
Answer: 10924

2. 2123 + 1241
- 3 + 1 = 4
- 2 + 4 = 6
- 1 + 2 = 3
- 2 + 1 = 3
Answer: 3364

3. 1604 - 350
- 4 - 0 = 4
- 0 - 5: Need to borrow, so 10 - 5 = 5
- 5 (after borrowing) - 3 = 2
- 1 - 0 = 1
Answer: 1254

4. 19032 - 1098
- 2 - 8: Need to borrow, so 12 - 8 = 4
- 2 (after borrowing) - 9: Need to borrow, so 12 - 9 = 3
- 9 (after borrowing) - 0 = 9
- 8 (after borrowing) - 1 = 7
- 1 - 0 = 1
Answer: 17934

Row 2:

5. 21091 - 1533
- 1 - 3: Need to borrow, so 11 - 3 = 8
- 8 (after borrowing) - 3 = 5
- 0 - 5: Need to borrow, so 10 - 5 = 5
- 0 (after borrowing) - 1: Need to borrow, so 10 - 1 = 9
- 1 (after borrowing) - 0 = 1
Answer: 19558

6. 1034 + 1390
- 4 + 0 = 4
- 3 + 9 = 12 (write 2, carry 1)
- 0 + 3 + 1 = 4
- 1 + 1 = 2
Answer: 2424

7. 1195 - 585
- 5 - 5 = 0
- 9 - 8 = 1
- 1 - 5: Need to borrow, so 11 - 5 = 6
- 0 (after borrowing) - 0 = 0
Answer: 610

8. 2120 + 1690
- 0 + 0 = 0
- 2 + 9 = 11 (write 1, carry 1)
- 1 + 6 + 1 = 8
- 2 + 1 = 3
Answer: 3810

Row 3:

9. 14391 + 2316
- 1 + 6 = 7
- 9 + 1 = 10 (write 0, carry 1)
- 3 + 3 + 1 = 7
- 4 + 2 = 6
- 1 + 0 = 1
Answer: 16707

10. 3614 - 131
- 4 - 1 = 3
- 1 - 3: Need to borrow, so 11 - 3 = 8
- 5 (after borrowing) - 1 = 4
- 3 - 0 = 3
Answer: 3483

11. 1430 + 451
- 0 + 1 = 1
- 3 + 5 = 8
- 4 + 4 = 8
- 1 + 0 = 1
Answer: 1881

12. 4643 - 355
- 3 - 5: Need to borrow, so 13 - 5 = 8
- 3 (after borrowing) - 5: Need to borrow, so 13 - 5 = 8
- 5 (after borrowing) - 3 = 2
- 4 - 0 = 4
Answer: 4288

Row 4:

13. 2202 + 1914
- 2 + 4 = 6
- 0 + 1 = 1
- 2 + 9 = 11 (write 1, carry 1)
- 2 + 1 + 1 = 4
Answer: 4116

14. 2675 - 32
- 5 - 2 = 3
- 7 - 3 = 4
- 6 - 0 = 6
- 2 - 0 = 2
Answer: 2643

15. 2791 + 2453
- 1 + 3 = 4
- 9 + 5 = 14 (write 4, carry 1)
- 7 + 4 + 1 = 12 (write 2, carry 1)
- 2 + 2 + 1 = 5
Answer: 5244

16. 2919 + 2210
- 9 + 0 = 9
- 1 + 1 = 2
- 9 + 2 = 11 (write 1, carry 1)
- 2 + 2 + 1 = 5
Answer: 5129

Let me double-check a few calculations to make sure they're correct:

- 12356 - 1432: 12356 - 1432 = 10924 ✓
- 2123 + 1241: 2123 + 1241 = 3364 ✓
- 1604 - 350: 1604 - 350 = 1254 ✓
- 19032 - 1098: 19032 - 1098 = 17934 ✓
- 21091 - 1533: 21091 - 1533 = 19558 ✓
- 1034 + 1390: 1034 + 1390 = 2424 ✓
- 1195 - 585: 1195 - 585 = 610 ✓
- 2120 + 1690: 2120 + 1690 = 3810 ✓
- 14391 + 2316: 14391 + 2316 = 16707 ✓
- 3614 - 131: 3614 - 131 = 3483 ✓
- 1430 + 451: 1430 + 451 = 1881 ✓
- 4643 - 355: 4643 - 355 = 4288 ✓
- 2202 + 1914: 2202 + 1914 = 4116 ✓
- 2675 - 32: 2675 - 32 = 2643 ✓
- 2791 + 2453: 2791 + 2453 = 5244 ✓
- 2919 + 2210: 2919 + 2210 = 5129 ✓

All calculations verified!

Final Answer:
1. 10924
2. 3364
3. 1254
4. 17934
5. 19558
6. 2424
7. 610
8. 3810
9. 16707
10. 3483
11. 1881
12. 4288
13. 4116
14. 2643
15. 5244
16. 5129