Решение примеров:
1. (624 - 4 = 620)
2. (624 - 20 = 604)
3. (624 - 600 = 24)
4. (475 + 2 = 477)
5. (475 + 20 = 495)
6. (475 + 200 = 675)
7. (362 - 2 = 360)
8. (362 - 60 = 302)
9. (362 - 300 = 62)
10. (553 + 4 = 557)
11. (553 + 40 = 593)
12. (553 + 400 = 953)