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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 251 · 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: 16, 8, 97, 64? (a) 16 (b) 8 (c) 97 (d) 64
  2. 2.Which number is the odd one out: 37, 13, 29, 32? (a) 37 (b) 13 (c) 29 (d) 32
  3. 3.Which number is the odd one out: 31, 15, 97, 11? (a) 31 (b) 15 (c) 97 (d) 11
  4. 4.Which number is the odd one out: 4, 49, 92, 74? (a) 4 (b) 49 (c) 92 (d) 74
  5. 5.Which number is the odd one out: 36, 59, 3, 73? (a) 36 (b) 59 (c) 3 (d) 73
  6. 6.Which number is the odd one out: 48, 8, 60, 25? (a) 48 (b) 8 (c) 60 (d) 25
  7. 7.Which number is the odd one out: 41, 13, 76, 53? (a) 41 (b) 13 (c) 76 (d) 53
  8. 8.Which number is the odd one out: 19, 77, 73, 7? (a) 19 (b) 77 (c) 73 (d) 7
  9. 9.Which number is the odd one out: 79, 47, 71, 48? (a) 79 (b) 47 (c) 71 (d) 48
  10. 10.Which number is the odd one out: 85, 87, 95, 55? (a) 85 (b) 87 (c) 95 (d) 55
  11. 11.Which number is the odd one out: 89, 23, 12, 2? (a) 89 (b) 23 (c) 12 (d) 2
  12. 12.Which number is the odd one out: 71, 22, 29, 19? (a) 71 (b) 22 (c) 29 (d) 19
  13. 13.Which number is the odd one out: 78, 5, 66, 58? (a) 78 (b) 5 (c) 66 (d) 58
  14. 14.Which number is the odd one out: 43, 11, 62, 73? (a) 43 (b) 11 (c) 62 (d) 73
  15. 15.Which number is the odd one out: 15, 23, 65, 75? (a) 15 (b) 23 (c) 65 (d) 75
  16. 16.Which number is the odd one out: 61, 3, 83, 48? (a) 61 (b) 3 (c) 83 (d) 48
  17. 17.Which number is the odd one out: 55, 47, 41, 89? (a) 55 (b) 47 (c) 41 (d) 89
  18. 18.Which number is the odd one out: 41, 60, 85, 61? (a) 41 (b) 60 (c) 85 (d) 61
  19. 19.Which number is the odd one out: 49, 70, 98, 25? (a) 49 (b) 70 (c) 98 (d) 25
  20. 20.Which number is the odd one out: 13, 41, 59, 6? (a) 13 (b) 41 (c) 59 (d) 6
  21. 21.Which number is the odd one out: 88, 39, 8, 76? (a) 88 (b) 39 (c) 8 (d) 76
  22. 22.Which number is the odd one out: 48, 53, 71, 73? (a) 48 (b) 53 (c) 71 (d) 73
  23. 23.Which number is the odd one out: 91, 98, 77, 80? (a) 91 (b) 98 (c) 77 (d) 80
  24. 24.Which number is the odd one out: 71, 73, 68, 61? (a) 71 (b) 73 (c) 68 (d) 61
  25. 25.Which number is the odd one out: 73, 59, 53, 18? (a) 73 (b) 59 (c) 53 (d) 18
  26. 26.Which number is the odd one out: 8, 96, 61, 48? (a) 8 (b) 96 (c) 61 (d) 48
  27. 27.Which number is the odd one out: 7, 37, 61, 70? (a) 7 (b) 37 (c) 61 (d) 70
  28. 28.Which number is the odd one out: 32, 70, 35, 77? (a) 32 (b) 70 (c) 35 (d) 77
  29. 29.Which number is the odd one out: 83, 79, 28, 13? (a) 83 (b) 79 (c) 28 (d) 13
  30. 30.Which number is the odd one out: 19, 3, 90, 43? (a) 19 (b) 3 (c) 90 (d) 43
  31. 31.Which number is the odd one out: 10, 89, 71, 43? (a) 10 (b) 89 (c) 71 (d) 43
  32. 32.Which number is the odd one out: 2, 4, 64, 16? (a) 2 (b) 4 (c) 64 (d) 16
  33. 33.Which number is the odd one out: 55, 65, 20, 56? (a) 55 (b) 65 (c) 20 (d) 56
  34. 34.Which number is the odd one out: 83, 69, 23, 96? (a) 83 (b) 69 (c) 23 (d) 96
  35. 35.Which number is the odd one out: 37, 94, 79, 53? (a) 37 (b) 94 (c) 79 (d) 53
  36. 36.Which number is the odd one out: 14, 75, 21, 98? (a) 14 (b) 75 (c) 21 (d) 98
  37. 37.Which number is the odd one out: 31, 44, 11, 79? (a) 31 (b) 44 (c) 11 (d) 79
  38. 38.Which number is the odd one out: 18, 17, 54, 86? (a) 18 (b) 17 (c) 54 (d) 86
  39. 39.Which number is the odd one out: 15, 81, 55, 95? (a) 15 (b) 81 (c) 55 (d) 95
  40. 40.Which number is the odd one out: 21, 7, 43, 71? (a) 21 (b) 7 (c) 43 (d) 71

Answer key

  1. 97
  2. 32
  3. 15
  4. 49
  5. 36
  6. 25
  7. 76
  8. 77
  9. 48
  10. 87
  11. 12
  12. 22
  13. 5
  14. 62
  15. 23
  16. 48
  17. 55
  18. 60
  19. 25
  20. 6
  21. 39
  22. 48
  23. 80
  24. 68
  25. 18
  26. 61
  27. 70
  28. 32
  29. 28
  30. 90
  31. 10
  32. 2
  33. 56
  34. 96
  35. 94
  36. 75
  37. 44
  38. 17
  39. 81
  40. 21

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