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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 405 · 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: 70, 55, 61, 79? (a) 70 (b) 55 (c) 61 (d) 79
  2. 2.Which number is the odd one out: 29, 89, 79, 90? (a) 29 (b) 89 (c) 79 (d) 90
  3. 3.Which number is the odd one out: 93, 19, 89, 84? (a) 93 (b) 19 (c) 89 (d) 84
  4. 4.Which number is the odd one out: 19, 20, 41, 31? (a) 19 (b) 20 (c) 41 (d) 31
  5. 5.Which number is the odd one out: 2, 67, 73, 26? (a) 2 (b) 67 (c) 73 (d) 26
  6. 6.Which number is the odd one out: 80, 88, 18, 20? (a) 80 (b) 88 (c) 18 (d) 20
  7. 7.Which number is the odd one out: 8, 36, 32, 16? (a) 8 (b) 36 (c) 32 (d) 16
  8. 8.Which number is the odd one out: 32, 78, 40, 80? (a) 32 (b) 78 (c) 40 (d) 80
  9. 9.Which number is the odd one out: 22, 67, 76, 44? (a) 22 (b) 67 (c) 76 (d) 44
  10. 10.Which number is the odd one out: 96, 74, 8, 24? (a) 96 (b) 74 (c) 8 (d) 24
  11. 11.Which number is the odd one out: 98, 59, 79, 71? (a) 98 (b) 59 (c) 79 (d) 71
  12. 12.Which number is the odd one out: 6, 78, 66, 4? (a) 6 (b) 78 (c) 66 (d) 4
  13. 13.Which number is the odd one out: 84, 89, 41, 17? (a) 84 (b) 89 (c) 41 (d) 17
  14. 14.Which number is the odd one out: 67, 2, 42, 29? (a) 67 (b) 2 (c) 42 (d) 29
  15. 15.Which number is the odd one out: 79, 59, 71, 14? (a) 79 (b) 59 (c) 71 (d) 14
  16. 16.Which number is the odd one out: 96, 12, 31, 24? (a) 96 (b) 12 (c) 31 (d) 24
  17. 17.Which number is the odd one out: 59, 23, 6, 51? (a) 59 (b) 23 (c) 6 (d) 51
  18. 18.Which number is the odd one out: 54, 16, 18, 72? (a) 54 (b) 16 (c) 18 (d) 72
  19. 19.Which number is the odd one out: 59, 31, 14, 73? (a) 59 (b) 31 (c) 14 (d) 73
  20. 20.Which number is the odd one out: 16, 67, 32, 64? (a) 16 (b) 67 (c) 32 (d) 64
  21. 21.Which number is the odd one out: 2, 67, 6, 47? (a) 2 (b) 67 (c) 6 (d) 47
  22. 22.Which number is the odd one out: 29, 5, 17, 80? (a) 29 (b) 5 (c) 17 (d) 80
  23. 23.Which number is the odd one out: 11, 47, 48, 43? (a) 11 (b) 47 (c) 48 (d) 43
  24. 24.Which number is the odd one out: 39, 67, 13, 43? (a) 39 (b) 67 (c) 13 (d) 43
  25. 25.Which number is the odd one out: 33, 87, 93, 41? (a) 33 (b) 87 (c) 93 (d) 41
  26. 26.Which number is the odd one out: 62, 22, 94, 83? (a) 62 (b) 22 (c) 94 (d) 83
  27. 27.Which number is the odd one out: 96, 72, 54, 53? (a) 96 (b) 72 (c) 54 (d) 53
  28. 28.Which number is the odd one out: 11, 64, 23, 17? (a) 11 (b) 64 (c) 23 (d) 17
  29. 29.Which number is the odd one out: 60, 55, 48, 8? (a) 60 (b) 55 (c) 48 (d) 8
  30. 30.Which number is the odd one out: 25, 73, 47, 13? (a) 25 (b) 73 (c) 47 (d) 13
  31. 31.Which number is the odd one out: 73, 39, 67, 90? (a) 73 (b) 39 (c) 67 (d) 90
  32. 32.Which number is the odd one out: 57, 31, 53, 11? (a) 57 (b) 31 (c) 53 (d) 11
  33. 33.Which number is the odd one out: 70, 64, 16, 56? (a) 70 (b) 64 (c) 16 (d) 56
  34. 34.Which number is the odd one out: 22, 7, 56, 32? (a) 22 (b) 7 (c) 56 (d) 32
  35. 35.Which number is the odd one out: 79, 2, 89, 13? (a) 79 (b) 2 (c) 89 (d) 13
  36. 36.Which number is the odd one out: 88, 18, 72, 52? (a) 88 (b) 18 (c) 72 (d) 52
  37. 37.Which number is the odd one out: 97, 9, 81, 3? (a) 97 (b) 9 (c) 81 (d) 3
  38. 38.Which number is the odd one out: 17, 28, 89, 59? (a) 17 (b) 28 (c) 89 (d) 59
  39. 39.Which number is the odd one out: 53, 19, 71, 21? (a) 53 (b) 19 (c) 71 (d) 21
  40. 40.Which number is the odd one out: 41, 56, 13, 71? (a) 41 (b) 56 (c) 13 (d) 71

Answer key

  1. 70
  2. 90
  3. 84
  4. 20
  5. 26
  6. 18
  7. 36
  8. 78
  9. 67
  10. 74
  11. 98
  12. 4
  13. 84
  14. 42
  15. 14
  16. 31
  17. 6
  18. 16
  19. 14
  20. 67
  21. 6
  22. 80
  23. 48
  24. 39
  25. 41
  26. 83
  27. 53
  28. 64
  29. 55
  30. 25
  31. 90
  32. 57
  33. 70
  34. 7
  35. 2
  36. 18
  37. 97
  38. 28
  39. 21
  40. 56

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