Solve the addition problems:

Решение:

1. \( 215 + 418 = 633 \)
2. \( 415 + 604 = 1019 \)
3. \( 328 + 110 = 438 \)
4. \( 864 + 128 = 992 \)
5. \( 309 + 298 = 607 \)
6. \( 297 + 160 = 457 \)
7. \( 249 + 539 = 788 \)
8. \( 910 + 107 = 1017 \)
9. \( 371 + 205 = 576 \)
10. \( 285 + 620 = 905 \)
11. \( 139 + 950 = 1089 \)
12. \( 348 + 932 = 1280 \)
13. \( 529 + 502 = 1031 \)
14. \( 193 + 294 = 487 \)
15. \( 843 + 103 = 946 \)
16. \( 710 + 164 = 874 \)
17. \( 503 + 204 = 707 \)
18. \( 639 + 106 = 745 \)
19. \( 490 + 103 = 593 \)
20. \( 492 + 203 = 695 \)

Ответ: 633, 1019, 438, 992, 607, 457, 788, 1017, 576, 905, 1089, 1280, 1031, 487, 946, 874, 707, 745, 593, 695.