Number Series

1 / 74

Look at this series: F2, __, D8, C16, B32, ... What number should fill the blank?

2 / 74

7 9 66 12 14 66 17

3 / 74

9 11 33 13 15 33 17

4 / 74

8 11 21 15 18 21 22

5 / 74

Look at this series: 8, 43, 11, 41, __, 39, 17, ... What number should fill in the blank?

6 / 74

6 20 8 14 10 8 12

7 / 74

21 25 18 29 33 18

8 / 74

40 40 31 31 22 22 13

9 / 74

17 17 34 20 20 31 23

10 / 74

14 14 26 26 38 38 50

11 / 74

Look at this series: 72, 76, 73, 77, 74, __, 75, ... What number should fill the blank?

12 / 74

Look at this series: 14, 28, 20, 40, 32, 64, ... What number should come next?

13 / 74

Look at this series: 5.2, 4.8, 4.4, 4, ... What number should come next?

14 / 74

16 26 56 36 46 68 56

15 / 74

Look at this series: 22, 21, 23, 22, 24, 23, ... What number should come next?

16 / 74

Look at this series: V, VIII, XI, XIV, __, XX, ... What number should fill the blank?

17 / 74

3 8 10 15 17 22 24

18 / 74

3 5 35 10 12 35 17

19 / 74

Look at this series: J14, L16, __, P20, R22, ... What number should fill the blank?

20 / 74

44 41 38 35 32 29 26

21 / 74

75 65 85 55 45 85 35

22 / 74

13 29 15 26 17 23 19

23 / 74

61 57 50 61 43 36 61

24 / 74

17 32 19 29 21 26 23

25 / 74

Look at this series: 21, 9, 21, 11, 21, 13, 21, ... What number should come next?

26 / 74

2 44 4 41 6 38 8

27 / 74

8 12 9 13 10 14 11

28 / 74

Look at this series: 5.2, 4.8, 4.4, 4, ... What number should come next?

29 / 74

Look at this series: 70, 71, 76, __, 81, 86, 70, 91, ... What number should fill the blank?

30 / 74

Look at this series: U32, V29, __, X23, Y20, ... What number should fill the blank?

31 / 74

28 25 5 21 18 5 14

32 / 74

36 31 29 24 22 17 15

33 / 74

Look at this series: 58, 52, 46, 40, 34, ... What number should come next

34 / 74

Look at this series: 1.5, 2.3, 3.1, 3.9, ... What number should come next?

35 / 74

17 14 14 11 11 8 8

36 / 74

Look at this series: (1/9), (1/3), 1, ____ , 9, ... What number should fill the blank?

37 / 74

Look at this series: 2, 6, 18, 54, ... What number should come next?

38 / 74

4 8 22 12 16 22 20 24

39 / 74

Look at this series: 4, 7, 25, 10, __, 20, 16, 19, ... What number should fill the blank?

40 / 74

Look at this series: 31, 29, 24, 22, 17, ... What number should come next?

41 / 74

Look at this series: 0.15, 0.3, ____, 1.2, 2.4, ... What number should fill the blank?

42 / 74

Look at this series: 36, 34, 30, 28, 24, ... What number should come next?

43 / 74

20 20 17 17 14 14 11

44 / 74

Look at this series: 8, 22, 8, 28, 8, ... What number should come next?

45 / 74

3 8 13 18 23 28 33

46 / 74

Look at this series: 15, __, 27, 27, 39, 39, ... What number should fill the blank?

47 / 74

42 40 38 35 33 31 28

48 / 74

9 12 11 14 13 16 15

49 / 74

Look at this series: 80, 10, 70, 15, 60, ... What number should come next?

50 / 74

9 16 23 30 37 44 51

51 / 74

Look at this series: 58, 52, 46, 40, 34, ... What number should come next?

52 / 74

1 10 7 20 13 30 19

53 / 74

11 16 21 26 31 36 41

54 / 74

2 3 4 5 6 4 8

55 / 74

34 30 26 22 18 14 10

56 / 74

Look at this series: 2, 4, 6, 8, 10, ... What number should come next?

57 / 74

10 20 25 35 40 50 55

58 / 74

2 8 14 20 26 32 38

59 / 74

10 34 12 31 14 28 16

60 / 74

Look at this series: 2, 1, (1/2), (1/4), ... What number should come next?

61 / 74

11 14 14 17 17 20 20

62 / 74

4 7 26 10 13 20 16

63 / 74

6 10 14 18 22 26 30

64 / 74

84 78 72 66 60 54 48

65 / 74

Look at this series: 201, 202, 204, 207, ... What number should come next?

66 / 74

32 29 26 23 20 17 14

67 / 74

Look at this series: 544, 509, 474, 439, ... What number should come next?

68 / 74

Look at this series: XXIV, XX, __, XII, VIII, ... What number should fill the blank?

69 / 74

32 31 32 29 32 27 32

70 / 74

Look at this series: 7, 10, 8, 11, 9, 12, ... What number should come next?

71 / 74

Look at this series: 664, 332, 340, 170, ____, 89, ... What number should fill the blank?

72 / 74

Look at this series: 22, 21, 23, 22, 24, 23, ... What number should come next?

73 / 74

Look at this series: 83, 73, 93, 63, __, 93, 43, ... What number should fill the blank?

74 / 74

Look at this series: VI, 10, V, 11, __, 12, III, ... What number should fill the blank?

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