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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 173 · 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: 58, 27, 21, 63? (a) 58 (b) 27 (c) 21 (d) 63
  2. 2.Which number is the odd one out: 2, 17, 37, 14? (a) 2 (b) 17 (c) 37 (d) 14
  3. 3.Which number is the odd one out: 91, 83, 23, 11? (a) 91 (b) 83 (c) 23 (d) 11
  4. 4.Which number is the odd one out: 30, 32, 48, 80? (a) 30 (b) 32 (c) 48 (d) 80
  5. 5.Which number is the odd one out: 35, 55, 88, 70? (a) 35 (b) 55 (c) 88 (d) 70
  6. 6.Which number is the odd one out: 70, 31, 5, 19? (a) 70 (b) 31 (c) 5 (d) 19
  7. 7.Which number is the odd one out: 13, 9, 43, 61? (a) 13 (b) 9 (c) 43 (d) 61
  8. 8.Which number is the odd one out: 46, 38, 23, 26? (a) 46 (b) 38 (c) 23 (d) 26
  9. 9.Which number is the odd one out: 64, 16, 25, 4? (a) 64 (b) 16 (c) 25 (d) 4
  10. 10.Which number is the odd one out: 60, 73, 41, 53? (a) 60 (b) 73 (c) 41 (d) 53
  11. 11.Which number is the odd one out: 99, 72, 48, 27? (a) 99 (b) 72 (c) 48 (d) 27
  12. 12.Which number is the odd one out: 83, 88, 53, 11? (a) 83 (b) 88 (c) 53 (d) 11
  13. 13.Which number is the odd one out: 2, 43, 24, 37? (a) 2 (b) 43 (c) 24 (d) 37
  14. 14.Which number is the odd one out: 27, 67, 53, 3? (a) 27 (b) 67 (c) 53 (d) 3
  15. 15.Which number is the odd one out: 72, 17, 61, 3? (a) 72 (b) 17 (c) 61 (d) 3
  16. 16.Which number is the odd one out: 81, 43, 17, 67? (a) 81 (b) 43 (c) 17 (d) 67
  17. 17.Which number is the odd one out: 79, 61, 6, 53? (a) 79 (b) 61 (c) 6 (d) 53
  18. 18.Which number is the odd one out: 81, 99, 13, 9? (a) 81 (b) 99 (c) 13 (d) 9
  19. 19.Which number is the odd one out: 2, 3, 97, 66? (a) 2 (b) 3 (c) 97 (d) 66
  20. 20.Which number is the odd one out: 59, 46, 17, 97? (a) 59 (b) 46 (c) 17 (d) 97
  21. 21.Which number is the odd one out: 47, 17, 94, 2? (a) 47 (b) 17 (c) 94 (d) 2
  22. 22.Which number is the odd one out: 83, 24, 29, 43? (a) 83 (b) 24 (c) 29 (d) 43
  23. 23.Which number is the odd one out: 23, 29, 5, 70? (a) 23 (b) 29 (c) 5 (d) 70
  24. 24.Which number is the odd one out: 17, 83, 53, 32? (a) 17 (b) 83 (c) 53 (d) 32
  25. 25.Which number is the odd one out: 35, 53, 5, 41? (a) 35 (b) 53 (c) 5 (d) 41
  26. 26.Which number is the odd one out: 39, 2, 65, 15? (a) 39 (b) 2 (c) 65 (d) 15
  27. 27.Which number is the odd one out: 49, 16, 35, 64? (a) 49 (b) 16 (c) 35 (d) 64
  28. 28.Which number is the odd one out: 50, 4, 30, 60? (a) 50 (b) 4 (c) 30 (d) 60
  29. 29.Which number is the odd one out: 36, 99, 84, 9? (a) 36 (b) 99 (c) 84 (d) 9
  30. 30.Which number is the odd one out: 21, 72, 91, 28? (a) 21 (b) 72 (c) 91 (d) 28
  31. 31.Which number is the odd one out: 27, 81, 16, 64? (a) 27 (b) 81 (c) 16 (d) 64
  32. 32.Which number is the odd one out: 19, 62, 17, 2? (a) 19 (b) 62 (c) 17 (d) 2
  33. 33.Which number is the odd one out: 24, 23, 33, 29? (a) 24 (b) 23 (c) 33 (d) 29
  34. 34.Which number is the odd one out: 71, 97, 23, 86? (a) 71 (b) 97 (c) 23 (d) 86
  35. 35.Which number is the odd one out: 18, 24, 41, 72? (a) 18 (b) 24 (c) 41 (d) 72
  36. 36.Which number is the odd one out: 77, 56, 52, 8? (a) 77 (b) 56 (c) 52 (d) 8
  37. 37.Which number is the odd one out: 97, 83, 90, 53? (a) 97 (b) 83 (c) 90 (d) 53
  38. 38.Which number is the odd one out: 47, 61, 16, 11? (a) 47 (b) 61 (c) 16 (d) 11
  39. 39.Which number is the odd one out: 64, 16, 93, 76? (a) 64 (b) 16 (c) 93 (d) 76
  40. 40.Which number is the odd one out: 73, 8, 41, 43? (a) 73 (b) 8 (c) 41 (d) 43

Answer key

  1. 58
  2. 14
  3. 91
  4. 30
  5. 88
  6. 70
  7. 9
  8. 23
  9. 25
  10. 60
  11. 48
  12. 88
  13. 24
  14. 27
  15. 72
  16. 81
  17. 6
  18. 13
  19. 66
  20. 46
  21. 94
  22. 24
  23. 70
  24. 32
  25. 35
  26. 2
  27. 35
  28. 4
  29. 84
  30. 72
  31. 27
  32. 62
  33. 24
  34. 86
  35. 41
  36. 77
  37. 90
  38. 16
  39. 93
  40. 8

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