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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 547 · 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, 59, 54, 89? (a) 23 (b) 59 (c) 54 (d) 89
  2. 2.Which number is the odd one out: 28, 8, 85, 56? (a) 28 (b) 8 (c) 85 (d) 56
  3. 3.Which number is the odd one out: 62, 76, 68, 37? (a) 62 (b) 76 (c) 68 (d) 37
  4. 4.Which number is the odd one out: 73, 37, 47, 4? (a) 73 (b) 37 (c) 47 (d) 4
  5. 5.Which number is the odd one out: 44, 60, 90, 54? (a) 44 (b) 60 (c) 90 (d) 54
  6. 6.Which number is the odd one out: 78, 6, 94, 35? (a) 78 (b) 6 (c) 94 (d) 35
  7. 7.Which number is the odd one out: 73, 20, 12, 30? (a) 73 (b) 20 (c) 12 (d) 30
  8. 8.Which number is the odd one out: 89, 19, 23, 93? (a) 89 (b) 19 (c) 23 (d) 93
  9. 9.Which number is the odd one out: 40, 97, 67, 83? (a) 40 (b) 97 (c) 67 (d) 83
  10. 10.Which number is the odd one out: 61, 89, 71, 66? (a) 61 (b) 89 (c) 71 (d) 66
  11. 11.Which number is the odd one out: 52, 68, 26, 91? (a) 52 (b) 68 (c) 26 (d) 91
  12. 12.Which number is the odd one out: 64, 37, 67, 79? (a) 64 (b) 37 (c) 67 (d) 79
  13. 13.Which number is the odd one out: 16, 64, 7, 56? (a) 16 (b) 64 (c) 7 (d) 56
  14. 14.Which number is the odd one out: 41, 29, 67, 42? (a) 41 (b) 29 (c) 67 (d) 42
  15. 15.Which number is the odd one out: 79, 59, 70, 7? (a) 79 (b) 59 (c) 70 (d) 7
  16. 16.Which number is the odd one out: 54, 31, 11, 61? (a) 54 (b) 31 (c) 11 (d) 61
  17. 17.Which number is the odd one out: 96, 20, 48, 40? (a) 96 (b) 20 (c) 48 (d) 40
  18. 18.Which number is the odd one out: 59, 5, 83, 95? (a) 59 (b) 5 (c) 83 (d) 95
  19. 19.Which number is the odd one out: 43, 29, 53, 28? (a) 43 (b) 29 (c) 53 (d) 28
  20. 20.Which number is the odd one out: 53, 58, 23, 43? (a) 53 (b) 58 (c) 23 (d) 43
  21. 21.Which number is the odd one out: 13, 2, 14, 53? (a) 13 (b) 2 (c) 14 (d) 53
  22. 22.Which number is the odd one out: 49, 64, 21, 16? (a) 49 (b) 64 (c) 21 (d) 16
  23. 23.Which number is the odd one out: 66, 67, 89, 53? (a) 66 (b) 67 (c) 89 (d) 53
  24. 24.Which number is the odd one out: 17, 5, 40, 80? (a) 17 (b) 5 (c) 40 (d) 80
  25. 25.Which number is the odd one out: 31, 37, 59, 82? (a) 31 (b) 37 (c) 59 (d) 82
  26. 26.Which number is the odd one out: 60, 35, 42, 77? (a) 60 (b) 35 (c) 42 (d) 77
  27. 27.Which number is the odd one out: 67, 53, 3, 48? (a) 67 (b) 53 (c) 3 (d) 48
  28. 28.Which number is the odd one out: 13, 47, 48, 11? (a) 13 (b) 47 (c) 48 (d) 11
  29. 29.Which number is the odd one out: 3, 9, 13, 23? (a) 3 (b) 9 (c) 13 (d) 23
  30. 30.Which number is the odd one out: 27, 24, 96, 48? (a) 27 (b) 24 (c) 96 (d) 48
  31. 31.Which number is the odd one out: 56, 89, 71, 23? (a) 56 (b) 89 (c) 71 (d) 23
  32. 32.Which number is the odd one out: 74, 43, 73, 61? (a) 74 (b) 43 (c) 73 (d) 61
  33. 33.Which number is the odd one out: 48, 19, 88, 24? (a) 48 (b) 19 (c) 88 (d) 24
  34. 34.Which number is the odd one out: 80, 40, 88, 99? (a) 80 (b) 40 (c) 88 (d) 99
  35. 35.Which number is the odd one out: 63, 64, 9, 16? (a) 63 (b) 64 (c) 9 (d) 16
  36. 36.Which number is the odd one out: 17, 9, 43, 37? (a) 17 (b) 9 (c) 43 (d) 37
  37. 37.Which number is the odd one out: 27, 64, 32, 16? (a) 27 (b) 64 (c) 32 (d) 16
  38. 38.Which number is the odd one out: 97, 31, 32, 83? (a) 97 (b) 31 (c) 32 (d) 83
  39. 39.Which number is the odd one out: 47, 84, 41, 89? (a) 47 (b) 84 (c) 41 (d) 89
  40. 40.Which number is the odd one out: 17, 2, 40, 47? (a) 17 (b) 2 (c) 40 (d) 47

Answer key

  1. 54
  2. 85
  3. 37
  4. 4
  5. 44
  6. 35
  7. 73
  8. 93
  9. 40
  10. 66
  11. 91
  12. 64
  13. 7
  14. 42
  15. 70
  16. 54
  17. 20
  18. 95
  19. 28
  20. 58
  21. 14
  22. 21
  23. 66
  24. 17
  25. 82
  26. 60
  27. 48
  28. 48
  29. 9
  30. 27
  31. 56
  32. 74
  33. 19
  34. 99
  35. 63
  36. 9
  37. 27
  38. 32
  39. 84
  40. 40

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