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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 624 · 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: 91, 17, 53, 47? (a) 91 (b) 17 (c) 53 (d) 47
  2. 2.Which number is the odd one out: 84, 5, 60, 98? (a) 84 (b) 5 (c) 60 (d) 98
  3. 3.Which number is the odd one out: 42, 14, 31, 78? (a) 42 (b) 14 (c) 31 (d) 78
  4. 4.Which number is the odd one out: 11, 47, 84, 3? (a) 11 (b) 47 (c) 84 (d) 3
  5. 5.Which number is the odd one out: 43, 64, 2, 89? (a) 43 (b) 64 (c) 2 (d) 89
  6. 6.Which number is the odd one out: 65, 64, 8, 16? (a) 65 (b) 64 (c) 8 (d) 16
  7. 7.Which number is the odd one out: 5, 2, 60, 13? (a) 5 (b) 2 (c) 60 (d) 13
  8. 8.Which number is the odd one out: 47, 37, 18, 17? (a) 47 (b) 37 (c) 18 (d) 17
  9. 9.Which number is the odd one out: 2, 12, 61, 73? (a) 2 (b) 12 (c) 61 (d) 73
  10. 10.Which number is the odd one out: 54, 63, 21, 42? (a) 54 (b) 63 (c) 21 (d) 42
  11. 11.Which number is the odd one out: 14, 46, 22, 7? (a) 14 (b) 46 (c) 22 (d) 7
  12. 12.Which number is the odd one out: 36, 81, 13, 37? (a) 36 (b) 81 (c) 13 (d) 37
  13. 13.Which number is the odd one out: 89, 79, 62, 59? (a) 89 (b) 79 (c) 62 (d) 59
  14. 14.Which number is the odd one out: 72, 46, 54, 24? (a) 72 (b) 46 (c) 54 (d) 24
  15. 15.Which number is the odd one out: 74, 73, 43, 13? (a) 74 (b) 73 (c) 43 (d) 13
  16. 16.Which number is the odd one out: 71, 94, 22, 82? (a) 71 (b) 94 (c) 22 (d) 82
  17. 17.Which number is the odd one out: 66, 47, 19, 43? (a) 66 (b) 47 (c) 19 (d) 43
  18. 18.Which number is the odd one out: 96, 53, 87, 61? (a) 96 (b) 53 (c) 87 (d) 61
  19. 19.Which number is the odd one out: 79, 13, 72, 53? (a) 79 (b) 13 (c) 72 (d) 53
  20. 20.Which number is the odd one out: 21, 66, 42, 41? (a) 21 (b) 66 (c) 42 (d) 41
  21. 21.Which number is the odd one out: 55, 85, 25, 9? (a) 55 (b) 85 (c) 25 (d) 9
  22. 22.Which number is the odd one out: 77, 91, 29, 7? (a) 77 (b) 91 (c) 29 (d) 7
  23. 23.Which number is the odd one out: 23, 98, 67, 31? (a) 23 (b) 98 (c) 67 (d) 31
  24. 24.Which number is the odd one out: 47, 71, 73, 8? (a) 47 (b) 71 (c) 73 (d) 8
  25. 25.Which number is the odd one out: 18, 90, 4, 30? (a) 18 (b) 90 (c) 4 (d) 30
  26. 26.Which number is the odd one out: 43, 26, 17, 13? (a) 43 (b) 26 (c) 17 (d) 13
  27. 27.Which number is the odd one out: 29, 53, 17, 92? (a) 29 (b) 53 (c) 17 (d) 92
  28. 28.Which number is the odd one out: 23, 26, 41, 13? (a) 23 (b) 26 (c) 41 (d) 13
  29. 29.Which number is the odd one out: 81, 59, 41, 71? (a) 81 (b) 59 (c) 41 (d) 71
  30. 30.Which number is the odd one out: 88, 48, 5, 96? (a) 88 (b) 48 (c) 5 (d) 96
  31. 31.Which number is the odd one out: 33, 37, 3, 79? (a) 33 (b) 37 (c) 3 (d) 79
  32. 32.Which number is the odd one out: 47, 41, 2, 68? (a) 47 (b) 41 (c) 2 (d) 68
  33. 33.Which number is the odd one out: 25, 48, 24, 40? (a) 25 (b) 48 (c) 24 (d) 40
  34. 34.Which number is the odd one out: 79, 17, 26, 13? (a) 79 (b) 17 (c) 26 (d) 13
  35. 35.Which number is the odd one out: 77, 48, 21, 91? (a) 77 (b) 48 (c) 21 (d) 91
  36. 36.Which number is the odd one out: 59, 17, 27, 97? (a) 59 (b) 17 (c) 27 (d) 97
  37. 37.Which number is the odd one out: 31, 37, 59, 21? (a) 31 (b) 37 (c) 59 (d) 21
  38. 38.Which number is the odd one out: 30, 20, 12, 52? (a) 30 (b) 20 (c) 12 (d) 52
  39. 39.Which number is the odd one out: 62, 67, 71, 37? (a) 62 (b) 67 (c) 71 (d) 37
  40. 40.Which number is the odd one out: 87, 78, 11, 43? (a) 87 (b) 78 (c) 11 (d) 43

Answer key

  1. 91
  2. 5
  3. 31
  4. 84
  5. 64
  6. 65
  7. 60
  8. 18
  9. 12
  10. 54
  11. 7
  12. 36
  13. 62
  14. 46
  15. 74
  16. 71
  17. 66
  18. 96
  19. 72
  20. 41
  21. 9
  22. 29
  23. 98
  24. 8
  25. 4
  26. 26
  27. 92
  28. 26
  29. 81
  30. 5
  31. 33
  32. 68
  33. 25
  34. 26
  35. 48
  36. 27
  37. 21
  38. 30
  39. 62
  40. 78

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