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Gasiti numarul lipsa

1. Avem sirul 1, 2, 3, 4, ?, 6. Ce numar lipseste?

2

3

4

5

6

2. Avem sirul 64, 32, 16, 8, ?, 2. Ce numar lipseste?

2

3

4

6

8

3. Avem sirul 1, 2, 4, 7, ?, 16. Ce numar lipseste?

7

8

9

10

11

4. Avem sirul 1, 10, 11, 20, ?, 30. Ce numar lipseste?

12

13

21

22

23

5. Avem sirul 1, 5, 32, 288, ?, 50069. Ce numar lipseste?

2021

1989

1212

3413

2012

6. Avem sirul 1, 5, 14, 30, ?, 91. Ce numar lipseste?

39

55

54

74

18

7. Avem sirul 1, 6, 4, 9, ?, 12. Ce numar lipseste?

3

5

7

9

11

8. Avem sirul 128, 64, 32, 16, ?, 4. Ce numar lipseste?

121

6

4

24

8

9. Avem sirul 1, 1, 2, 4, ?, 16. Ce numar lipseste?

5

8

6

3

12

10. Avem sirul 3, 10, 6, 13, ?, 16. Ce numar lipseste?

9

10

12

8

2