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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 575 · 40 questions
TalentJR

How to think it through (Test every number): Check each number for a property: even/odd, prime (only two factors), square (4, 9, 16 …), or a multiple of 3, 4, 5 … 9. Find the property that three numbers share and one does not. Make sure no other property points at a different number — then that one is the odd one out.

NameDateTime takenScore ___ / 40
  1. 1.Which number is the odd one out: 48, 20, 96, 12? (a) 48 (b) 20 (c) 96 (d) 12
  2. 2.Which number is the odd one out: 78, 30, 6, 55? (a) 78 (b) 30 (c) 6 (d) 55
  3. 3.Which number is the odd one out: 17, 11, 62, 53? (a) 17 (b) 11 (c) 62 (d) 53
  4. 4.Which number is the odd one out: 45, 64, 16, 8? (a) 45 (b) 64 (c) 16 (d) 8
  5. 5.Which number is the odd one out: 77, 12, 91, 98? (a) 77 (b) 12 (c) 91 (d) 98
  6. 6.Which number is the odd one out: 3, 53, 51, 11? (a) 3 (b) 53 (c) 51 (d) 11
  7. 7.Which number is the odd one out: 3, 61, 62, 39? (a) 3 (b) 61 (c) 62 (d) 39
  8. 8.Which number is the odd one out: 19, 90, 29, 97? (a) 19 (b) 90 (c) 29 (d) 97
  9. 9.Which number is the odd one out: 71, 2, 96, 19? (a) 71 (b) 2 (c) 96 (d) 19
  10. 10.Which number is the odd one out: 10, 55, 5, 2? (a) 10 (b) 55 (c) 5 (d) 2
  11. 11.Which number is the odd one out: 72, 11, 37, 43? (a) 72 (b) 11 (c) 37 (d) 43
  12. 12.Which number is the odd one out: 12, 30, 60, 26? (a) 12 (b) 30 (c) 60 (d) 26
  13. 13.Which number is the odd one out: 15, 62, 93, 85? (a) 15 (b) 62 (c) 93 (d) 85
  14. 14.Which number is the odd one out: 8, 96, 5, 24? (a) 8 (b) 96 (c) 5 (d) 24
  15. 15.Which number is the odd one out: 7, 47, 35, 19? (a) 7 (b) 47 (c) 35 (d) 19
  16. 16.Which number is the odd one out: 7, 3, 42, 37? (a) 7 (b) 3 (c) 42 (d) 37
  17. 17.Which number is the odd one out: 56, 96, 42, 6? (a) 56 (b) 96 (c) 42 (d) 6
  18. 18.Which number is the odd one out: 31, 13, 53, 48? (a) 31 (b) 13 (c) 53 (d) 48
  19. 19.Which number is the odd one out: 52, 96, 24, 13? (a) 52 (b) 96 (c) 24 (d) 13
  20. 20.Which number is the odd one out: 41, 37, 89, 4? (a) 41 (b) 37 (c) 89 (d) 4
  21. 21.Which number is the odd one out: 59, 29, 87, 19? (a) 59 (b) 29 (c) 87 (d) 19
  22. 22.Which number is the odd one out: 69, 93, 33, 50? (a) 69 (b) 93 (c) 33 (d) 50
  23. 23.Which number is the odd one out: 2, 34, 67, 11? (a) 2 (b) 34 (c) 67 (d) 11
  24. 24.Which number is the odd one out: 29, 99, 43, 11? (a) 29 (b) 99 (c) 43 (d) 11
  25. 25.Which number is the odd one out: 96, 78, 51, 48? (a) 96 (b) 78 (c) 51 (d) 48
  26. 26.Which number is the odd one out: 28, 47, 13, 31? (a) 28 (b) 47 (c) 13 (d) 31
  27. 27.Which number is the odd one out: 8, 14, 77, 91? (a) 8 (b) 14 (c) 77 (d) 91
  28. 28.Which number is the odd one out: 90, 31, 54, 45? (a) 90 (b) 31 (c) 54 (d) 45
  29. 29.Which number is the odd one out: 11, 46, 89, 61? (a) 11 (b) 46 (c) 89 (d) 61
  30. 30.Which number is the odd one out: 53, 42, 17, 59? (a) 53 (b) 42 (c) 17 (d) 59
  31. 31.Which number is the odd one out: 87, 37, 61, 83? (a) 87 (b) 37 (c) 61 (d) 83
  32. 32.Which number is the odd one out: 64, 8, 16, 38? (a) 64 (b) 8 (c) 16 (d) 38
  33. 33.Which number is the odd one out: 41, 11, 3, 84? (a) 41 (b) 11 (c) 3 (d) 84
  34. 34.Which number is the odd one out: 23, 47, 63, 31? (a) 23 (b) 47 (c) 63 (d) 31
  35. 35.Which number is the odd one out: 89, 79, 29, 10? (a) 89 (b) 79 (c) 29 (d) 10
  36. 36.Which number is the odd one out: 40, 80, 8, 38? (a) 40 (b) 80 (c) 8 (d) 38
  37. 37.Which number is the odd one out: 48, 12, 96, 31? (a) 48 (b) 12 (c) 96 (d) 31
  38. 38.Which number is the odd one out: 62, 41, 11, 89? (a) 62 (b) 41 (c) 11 (d) 89
  39. 39.Which number is the odd one out: 73, 37, 79, 98? (a) 73 (b) 37 (c) 79 (d) 98
  40. 40.Which number is the odd one out: 32, 24, 60, 35? (a) 32 (b) 24 (c) 60 (d) 35

Answer key

  1. 20
  2. 55
  3. 62
  4. 45
  5. 12
  6. 51
  7. 62
  8. 90
  9. 96
  10. 2
  11. 72
  12. 26
  13. 62
  14. 5
  15. 35
  16. 42
  17. 56
  18. 48
  19. 13
  20. 4
  21. 87
  22. 50
  23. 34
  24. 99
  25. 51
  26. 28
  27. 8
  28. 31
  29. 46
  30. 42
  31. 87
  32. 38
  33. 84
  34. 63
  35. 10
  36. 38
  37. 31
  38. 62
  39. 98
  40. 35

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