4 + 11 = ? 14 - ? = 4 7 + ? = 16 ? - 9 = 11 ? - 5 = 13 + 12 = 17 7 + ? = 16 ? = 14 10 + ? = 15 18 - 10 = ? 19 - ? = 6 13 - ? = 3 19 - ? = 4 19 - 6 = ? 17 - ? = 5 ? + 6 = 18 9 + ? = 20 18 + ? = 20 ? - 4 = 10 16 - ? = 13 14 - ? = 1 18 - ? = 15 18 - ? = 9 20 - ? = 7 12 + ? = 17 19 - ? = 8 6 + ? = 18 16 - ? = 12 ? + 17 = 19 16 - ? = 11 5 + ? = 20 ? - 4 = 15 19 + ? = 20 ? + 4 = 18 5 + ? = 16 20 - ? = 3 7 + ? = 19 14 + ? = 20 14 + ? = 19 19 - ? = 2 18 - ? = 10 10 + ? = 20

Решение:

Заполним пропуски в примерах.

1. \( 4 + 11 = 15 \)
2. \( 14 - 10 = 4 \)
3. \( 7 + 9 = 16 \)
4. \( 20 - 9 = 11 \)
5. \( 18 - 5 = 13 \)
6. \( 5 + 12 = 17 \)
7. \( 7 + 9 = 16 \)
8. \( 14 - 0 = 14 \)
9. \( 10 + 5 = 15 \)
10. \( 18 - 10 = 8 \)
11. \( 19 - 13 = 6 \)
12. \( 13 - 10 = 3 \)
13. \( 19 - 15 = 4 \)
14. \( 19 - 6 = 13 \)
15. \( 17 - 12 = 5 \)
16. \( 12 + 6 = 18 \)
17. \( 9 + 11 = 20 \)
18. \( 18 + 2 = 20 \)
19. \( 14 - 4 = 10 \)
20. \( 16 - 3 = 13 \)
21. \( 14 - 13 = 1 \)
22. \( 18 - 3 = 15 \)
23. \( 18 - 9 = 9 \)
24. \( 20 - 13 = 7 \)
25. \( 12 + 5 = 17 \)
26. \( 19 - 11 = 8 \)
27. \( 6 + 12 = 18 \)
28. \( 16 - 4 = 12 \)
29. \( 2 + 17 = 19 \)
30. \( 16 - 5 = 11 \)
31. \( 5 + 15 = 20 \)
32. \( 19 - 4 = 15 \)
33. \( 19 + 1 = 20 \)
34. \( 14 + 4 = 18 \)
35. \( 5 + 11 = 16 \)
36. \( 20 - 17 = 3 \)
37. \( 7 + 12 = 19 \)
38. \( 14 + 6 = 20 \)
39. \( 14 + 5 = 19 \)
40. \( 19 - 17 = 2 \)
41. \( 18 - 8 = 10 \)
42. \( 10 + 10 = 20 \)

Ответ: 15, 10, 9, 20, 18, 5, 9, 0, 5, 8, 13, 10, 15, 13, 12, 12, 11, 2, 14, 16, 14, 3, 9, 13, 5, 8, 12, 2, 5, 15, 19, 1, 14, 5, 17, 7, 6, 5, 17, 2, 8, 10.