Solve the following addition problems by filling in the missing numbers.

Решение:

Нужно найти пропущенное число в каждом примере. Для этого нужно из результата вычесть известное слагаемое.

1. \( 50 + \boxed{15} = 65 \)
2. \( 11 + \boxed{79} = 90 \)
3. \( 26 + \boxed{52} = 78 \)
4. \( 52 + \boxed{15} = 67 \)
5. \( 22 + \boxed{16} = 38 \)
6. \( 51 + \boxed{27} = 78 \)
7. \( 25 + \boxed{11} = 36 \)
8. \( 29 + \boxed{16} = 45 \)
9. \( 66 + \boxed{18} = 84 \)
10. \( 47 + \boxed{13} = 60 \)
11. \( 28 + \boxed{14} = 42 \)
12. \( 33 + \boxed{13} = 46 \)
13. \( 71 + \boxed{24} = 95 \)
14. \( 56 + \boxed{34} = 90 \)
15. \( 47 + \boxed{26} = 73 \)
16. \( 16 + \boxed{38} = 54 \)
17. \( 43 + \boxed{10} = 53 \)
18. \( 17 + \boxed{58} = 75 \)
19. \( 33 + \boxed{13} = 46 \)
20. \( 79 + \boxed{20} = 99 \)
21. \( 48 + \boxed{36} = 84 \)
22. \( 41 + \boxed{19} = 60 \)
23. \( 28 + \boxed{15} = 43 \)
24. \( 35 + \boxed{15} = 50 \)
25. \( 66 + \boxed{19} = 85 \)
26. \( 54 + \boxed{37} = 91 \)
27. \( 46 + \boxed{40} = 86 \)
28. \( 62 + \boxed{16} = 78 \)

Ответ: 15, 79, 52, 15, 16, 27, 11, 16, 18, 13, 14, 13, 24, 34, 26, 38, 10, 58, 13, 20, 36, 19, 15, 15, 19, 37, 40, 16.