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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 919 · 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: 23, 39, 19, 24? (a) 23 (b) 39 (c) 19 (d) 24
  2. 2.Which number is the odd one out: 31, 59, 89, 55? (a) 31 (b) 59 (c) 89 (d) 55
  3. 3.Which number is the odd one out: 71, 41, 26, 17? (a) 71 (b) 41 (c) 26 (d) 17
  4. 4.Which number is the odd one out: 17, 59, 93, 3? (a) 17 (b) 59 (c) 93 (d) 3
  5. 5.Which number is the odd one out: 53, 88, 48, 24? (a) 53 (b) 88 (c) 48 (d) 24
  6. 6.Which number is the odd one out: 28, 11, 23, 89? (a) 28 (b) 11 (c) 23 (d) 89
  7. 7.Which number is the odd one out: 23, 67, 90, 17? (a) 23 (b) 67 (c) 90 (d) 17
  8. 8.Which number is the odd one out: 76, 52, 45, 44? (a) 76 (b) 52 (c) 45 (d) 44
  9. 9.Which number is the odd one out: 96, 18, 72, 75? (a) 96 (b) 18 (c) 72 (d) 75
  10. 10.Which number is the odd one out: 54, 5, 99, 18? (a) 54 (b) 5 (c) 99 (d) 18
  11. 11.Which number is the odd one out: 40, 13, 19, 97? (a) 40 (b) 13 (c) 19 (d) 97
  12. 12.Which number is the odd one out: 9, 49, 63, 91? (a) 9 (b) 49 (c) 63 (d) 91
  13. 13.Which number is the odd one out: 38, 88, 8, 32? (a) 38 (b) 88 (c) 8 (d) 32
  14. 14.Which number is the odd one out: 37, 89, 47, 4? (a) 37 (b) 89 (c) 47 (d) 4
  15. 15.Which number is the odd one out: 6, 50, 24, 96? (a) 6 (b) 50 (c) 24 (d) 96
  16. 16.Which number is the odd one out: 16, 43, 97, 37? (a) 16 (b) 43 (c) 97 (d) 37
  17. 17.Which number is the odd one out: 35, 65, 49, 95? (a) 35 (b) 65 (c) 49 (d) 95
  18. 18.Which number is the odd one out: 29, 17, 60, 89? (a) 29 (b) 17 (c) 60 (d) 89
  19. 19.Which number is the odd one out: 41, 57, 37, 89? (a) 41 (b) 57 (c) 37 (d) 89
  20. 20.Which number is the odd one out: 31, 49, 37, 7? (a) 31 (b) 49 (c) 37 (d) 7
  21. 21.Which number is the odd one out: 13, 70, 51, 3? (a) 13 (b) 70 (c) 51 (d) 3
  22. 22.Which number is the odd one out: 71, 11, 26, 41? (a) 71 (b) 11 (c) 26 (d) 41
  23. 23.Which number is the odd one out: 50, 10, 11, 58? (a) 50 (b) 10 (c) 11 (d) 58
  24. 24.Which number is the odd one out: 19, 79, 7, 70? (a) 19 (b) 79 (c) 7 (d) 70
  25. 25.Which number is the odd one out: 90, 17, 19, 13? (a) 90 (b) 17 (c) 19 (d) 13
  26. 26.Which number is the odd one out: 83, 19, 65, 23? (a) 83 (b) 19 (c) 65 (d) 23
  27. 27.Which number is the odd one out: 52, 35, 60, 84? (a) 52 (b) 35 (c) 60 (d) 84
  28. 28.Which number is the odd one out: 43, 35, 79, 89? (a) 43 (b) 35 (c) 79 (d) 89
  29. 29.Which number is the odd one out: 38, 82, 89, 62? (a) 38 (b) 82 (c) 89 (d) 62
  30. 30.Which number is the odd one out: 78, 52, 8, 96? (a) 78 (b) 52 (c) 8 (d) 96
  31. 31.Which number is the odd one out: 24, 97, 39, 31? (a) 24 (b) 97 (c) 39 (d) 31
  32. 32.Which number is the odd one out: 20, 83, 59, 43? (a) 20 (b) 83 (c) 59 (d) 43
  33. 33.Which number is the odd one out: 28, 42, 84, 58? (a) 28 (b) 42 (c) 84 (d) 58
  34. 34.Which number is the odd one out: 90, 17, 5, 19? (a) 90 (b) 17 (c) 5 (d) 19
  35. 35.Which number is the odd one out: 40, 31, 37, 53? (a) 40 (b) 31 (c) 37 (d) 53
  36. 36.Which number is the odd one out: 82, 41, 17, 61? (a) 82 (b) 41 (c) 17 (d) 61
  37. 37.Which number is the odd one out: 11, 41, 40, 2? (a) 11 (b) 41 (c) 40 (d) 2
  38. 38.Which number is the odd one out: 35, 50, 37, 70? (a) 35 (b) 50 (c) 37 (d) 70
  39. 39.Which number is the odd one out: 31, 67, 23, 62? (a) 31 (b) 67 (c) 23 (d) 62
  40. 40.Which number is the odd one out: 54, 31, 17, 23? (a) 54 (b) 31 (c) 17 (d) 23

Answer key

  1. 24
  2. 55
  3. 26
  4. 93
  5. 53
  6. 28
  7. 90
  8. 45
  9. 75
  10. 5
  11. 40
  12. 9
  13. 38
  14. 4
  15. 50
  16. 16
  17. 49
  18. 60
  19. 57
  20. 49
  21. 70
  22. 26
  23. 11
  24. 70
  25. 90
  26. 65
  27. 35
  28. 35
  29. 89
  30. 78
  31. 24
  32. 20
  33. 58
  34. 90
  35. 40
  36. 82
  37. 40
  38. 37
  39. 62
  40. 54

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