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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 297 · 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: 13, 47, 12, 53? (a) 13 (b) 47 (c) 12 (d) 53
  2. 2.Which number is the odd one out: 29, 49, 7, 31? (a) 29 (b) 49 (c) 7 (d) 31
  3. 3.Which number is the odd one out: 7, 84, 12, 87? (a) 7 (b) 84 (c) 12 (d) 87
  4. 4.Which number is the odd one out: 59, 11, 23, 85? (a) 59 (b) 11 (c) 23 (d) 85
  5. 5.Which number is the odd one out: 61, 16, 73, 67? (a) 61 (b) 16 (c) 73 (d) 67
  6. 6.Which number is the odd one out: 73, 43, 53, 52? (a) 73 (b) 43 (c) 53 (d) 52
  7. 7.Which number is the odd one out: 16, 97, 11, 71? (a) 16 (b) 97 (c) 11 (d) 71
  8. 8.Which number is the odd one out: 67, 61, 29, 75? (a) 67 (b) 61 (c) 29 (d) 75
  9. 9.Which number is the odd one out: 29, 12, 31, 2? (a) 29 (b) 12 (c) 31 (d) 2
  10. 10.Which number is the odd one out: 72, 73, 79, 89? (a) 72 (b) 73 (c) 79 (d) 89
  11. 11.Which number is the odd one out: 5, 67, 10, 17? (a) 5 (b) 67 (c) 10 (d) 17
  12. 12.Which number is the odd one out: 5, 37, 10, 79? (a) 5 (b) 37 (c) 10 (d) 79
  13. 13.Which number is the odd one out: 53, 8, 23, 73? (a) 53 (b) 8 (c) 23 (d) 73
  14. 14.Which number is the odd one out: 15, 85, 93, 95? (a) 15 (b) 85 (c) 93 (d) 95
  15. 15.Which number is the odd one out: 75, 23, 29, 97? (a) 75 (b) 23 (c) 29 (d) 97
  16. 16.Which number is the odd one out: 88, 59, 8, 32? (a) 88 (b) 59 (c) 8 (d) 32
  17. 17.Which number is the odd one out: 53, 97, 64, 79? (a) 53 (b) 97 (c) 64 (d) 79
  18. 18.Which number is the odd one out: 44, 52, 97, 34? (a) 44 (b) 52 (c) 97 (d) 34
  19. 19.Which number is the odd one out: 24, 85, 50, 96? (a) 24 (b) 85 (c) 50 (d) 96
  20. 20.Which number is the odd one out: 9, 16, 64, 45? (a) 9 (b) 16 (c) 64 (d) 45
  21. 21.Which number is the odd one out: 50, 47, 43, 61? (a) 50 (b) 47 (c) 43 (d) 61
  22. 22.Which number is the odd one out: 99, 83, 79, 23? (a) 99 (b) 83 (c) 79 (d) 23
  23. 23.Which number is the odd one out: 96, 7, 24, 39? (a) 96 (b) 7 (c) 24 (d) 39
  24. 24.Which number is the odd one out: 41, 40, 73, 2? (a) 41 (b) 40 (c) 73 (d) 2
  25. 25.Which number is the odd one out: 19, 67, 3, 27? (a) 19 (b) 67 (c) 3 (d) 27
  26. 26.Which number is the odd one out: 9, 36, 24, 81? (a) 9 (b) 36 (c) 24 (d) 81
  27. 27.Which number is the odd one out: 67, 23, 6, 2? (a) 67 (b) 23 (c) 6 (d) 2
  28. 28.Which number is the odd one out: 18, 32, 72, 54? (a) 18 (b) 32 (c) 72 (d) 54
  29. 29.Which number is the odd one out: 79, 34, 59, 29? (a) 79 (b) 34 (c) 59 (d) 29
  30. 30.Which number is the odd one out: 79, 28, 29, 71? (a) 79 (b) 28 (c) 29 (d) 71
  31. 31.Which number is the odd one out: 4, 89, 17, 61? (a) 4 (b) 89 (c) 17 (d) 61
  32. 32.Which number is the odd one out: 29, 36, 79, 43? (a) 29 (b) 36 (c) 79 (d) 43
  33. 33.Which number is the odd one out: 33, 91, 93, 21? (a) 33 (b) 91 (c) 93 (d) 21
  34. 34.Which number is the odd one out: 67, 31, 61, 84? (a) 67 (b) 31 (c) 61 (d) 84
  35. 35.Which number is the odd one out: 19, 25, 31, 5? (a) 19 (b) 25 (c) 31 (d) 5
  36. 36.Which number is the odd one out: 38, 11, 37, 79? (a) 38 (b) 11 (c) 37 (d) 79
  37. 37.Which number is the odd one out: 59, 97, 79, 30? (a) 59 (b) 97 (c) 79 (d) 30
  38. 38.Which number is the odd one out: 24, 2, 71, 67? (a) 24 (b) 2 (c) 71 (d) 67
  39. 39.Which number is the odd one out: 13, 19, 96, 83? (a) 13 (b) 19 (c) 96 (d) 83
  40. 40.Which number is the odd one out: 53, 17, 59, 55? (a) 53 (b) 17 (c) 59 (d) 55

Answer key

  1. 12
  2. 49
  3. 7
  4. 85
  5. 16
  6. 52
  7. 16
  8. 75
  9. 12
  10. 72
  11. 10
  12. 10
  13. 8
  14. 93
  15. 75
  16. 59
  17. 64
  18. 97
  19. 85
  20. 45
  21. 50
  22. 99
  23. 7
  24. 40
  25. 27
  26. 24
  27. 6
  28. 32
  29. 34
  30. 28
  31. 4
  32. 36
  33. 91
  34. 84
  35. 25
  36. 38
  37. 30
  38. 24
  39. 96
  40. 55

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