Math practice worksheet with addition and subtraction exercises for elementary students.

I'll solve each subtraction and addition problem step by step, checking my work carefully.

Let me work through all the problems:

First row (subtraction):
1. 356 - 134 = 222
2. 683 - 256 = 427
3. 492 - 175 = 317
4. 715 - 261 = 454
5. 640 - 154 = 486

Second row (addition):
6. 364 + 182 = 546
7. 467 + 248 = 715
8. 438 + 175 = 613
9. 614 + 269 = 883
10. 373 + 568 = 941

Third row (subtraction):
11. 713 - 153 = 560
12. 950 - 291 = 659
13. 840 - 262 = 578

Fourth row (addition):
14. 647 + 276 = 923
15. 598 + 242 = 840
16. 469 + 362 = 831

Fifth row (subtraction):
17. 601 - 220 = 381
18. 724 - 177 = 547
19. 835 - 305 = 530

Let me verify a few calculations to make sure they're correct:

- 356 - 134: 6-4=2, 5-3=2, 3-1=2 → 222 ✓
- 683 - 256: 13-6=7, 7-5=2, 6-2=4 → 427 ✓
- 640 - 154: 10-4=6, 13-5=8, 5-1=4 → 486 ✓
- 364 + 182: 4+2=6, 6+8=14 (carry 1), 3+1+1=5 → 546 ✓
- 467 + 248: 7+8=15 (carry 1), 6+4+1=11 (carry 1), 4+2+1=7 → 715 ✓
- 950 - 291: 10-1=9, 14-9=5, 8-2=6 → 659 ✓

All calculations check out!

Final Answer:
Row 1: 222, 427, 317, 454, 486
Row 2: 546, 715, 613, 883, 941
Row 3: 560, 659, 578
Row 4: 923, 840, 831
Row 5: 381, 547, 530