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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 667 · 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: 14, 70, 35, 41? (a) 14 (b) 70 (c) 35 (d) 41
  2. 2.Which number is the odd one out: 2, 73, 66, 31? (a) 2 (b) 73 (c) 66 (d) 31
  3. 3.Which number is the odd one out: 22, 61, 47, 83? (a) 22 (b) 61 (c) 47 (d) 83
  4. 4.Which number is the odd one out: 9, 81, 36, 72? (a) 9 (b) 81 (c) 36 (d) 72
  5. 5.Which number is the odd one out: 53, 71, 97, 8? (a) 53 (b) 71 (c) 97 (d) 8
  6. 6.Which number is the odd one out: 83, 62, 47, 43? (a) 83 (b) 62 (c) 47 (d) 43
  7. 7.Which number is the odd one out: 70, 48, 88, 96? (a) 70 (b) 48 (c) 88 (d) 96
  8. 8.Which number is the odd one out: 18, 39, 71, 13? (a) 18 (b) 39 (c) 71 (d) 13
  9. 9.Which number is the odd one out: 79, 47, 36, 97? (a) 79 (b) 47 (c) 36 (d) 97
  10. 10.Which number is the odd one out: 37, 83, 23, 38? (a) 37 (b) 83 (c) 23 (d) 38
  11. 11.Which number is the odd one out: 60, 30, 20, 41? (a) 60 (b) 30 (c) 20 (d) 41
  12. 12.Which number is the odd one out: 97, 19, 4, 71? (a) 97 (b) 19 (c) 4 (d) 71
  13. 13.Which number is the odd one out: 37, 7, 43, 35? (a) 37 (b) 7 (c) 43 (d) 35
  14. 14.Which number is the odd one out: 7, 53, 79, 21? (a) 7 (b) 53 (c) 79 (d) 21
  15. 15.Which number is the odd one out: 6, 90, 25, 18? (a) 6 (b) 90 (c) 25 (d) 18
  16. 16.Which number is the odd one out: 87, 17, 41, 61? (a) 87 (b) 17 (c) 41 (d) 61
  17. 17.Which number is the odd one out: 10, 31, 73, 67? (a) 10 (b) 31 (c) 73 (d) 67
  18. 18.Which number is the odd one out: 27, 23, 71, 89? (a) 27 (b) 23 (c) 71 (d) 89
  19. 19.Which number is the odd one out: 31, 40, 17, 2? (a) 31 (b) 40 (c) 17 (d) 2
  20. 20.Which number is the odd one out: 72, 89, 31, 2? (a) 72 (b) 89 (c) 31 (d) 2
  21. 21.Which number is the odd one out: 97, 17, 67, 42? (a) 97 (b) 17 (c) 67 (d) 42
  22. 22.Which number is the odd one out: 91, 17, 37, 73? (a) 91 (b) 17 (c) 37 (d) 73
  23. 23.Which number is the odd one out: 58, 17, 94, 2? (a) 58 (b) 17 (c) 94 (d) 2
  24. 24.Which number is the odd one out: 69, 57, 23, 39? (a) 69 (b) 57 (c) 23 (d) 39
  25. 25.Which number is the odd one out: 29, 83, 53, 26? (a) 29 (b) 83 (c) 53 (d) 26
  26. 26.Which number is the odd one out: 99, 87, 63, 77? (a) 99 (b) 87 (c) 63 (d) 77
  27. 27.Which number is the odd one out: 83, 96, 2, 79? (a) 83 (b) 96 (c) 2 (d) 79
  28. 28.Which number is the odd one out: 13, 77, 71, 42? (a) 13 (b) 77 (c) 71 (d) 42
  29. 29.Which number is the odd one out: 56, 48, 7, 96? (a) 56 (b) 48 (c) 7 (d) 96
  30. 30.Which number is the odd one out: 73, 69, 19, 89? (a) 73 (b) 69 (c) 19 (d) 89
  31. 31.Which number is the odd one out: 10, 88, 48, 24? (a) 10 (b) 88 (c) 48 (d) 24
  32. 32.Which number is the odd one out: 88, 31, 41, 83? (a) 88 (b) 31 (c) 41 (d) 83
  33. 33.Which number is the odd one out: 97, 59, 66, 19? (a) 97 (b) 59 (c) 66 (d) 19
  34. 34.Which number is the odd one out: 84, 68, 42, 52? (a) 84 (b) 68 (c) 42 (d) 52
  35. 35.Which number is the odd one out: 88, 17, 31, 11? (a) 88 (b) 17 (c) 31 (d) 11
  36. 36.Which number is the odd one out: 49, 56, 91, 16? (a) 49 (b) 56 (c) 91 (d) 16
  37. 37.Which number is the odd one out: 53, 97, 13, 95? (a) 53 (b) 97 (c) 13 (d) 95
  38. 38.Which number is the odd one out: 41, 52, 96, 48? (a) 41 (b) 52 (c) 96 (d) 48
  39. 39.Which number is the odd one out: 71, 83, 2, 24? (a) 71 (b) 83 (c) 2 (d) 24
  40. 40.Which number is the odd one out: 90, 37, 29, 89? (a) 90 (b) 37 (c) 29 (d) 89

Answer key

  1. 41
  2. 66
  3. 22
  4. 72
  5. 8
  6. 62
  7. 70
  8. 18
  9. 36
  10. 38
  11. 41
  12. 4
  13. 35
  14. 21
  15. 25
  16. 87
  17. 10
  18. 27
  19. 40
  20. 72
  21. 42
  22. 91
  23. 17
  24. 23
  25. 26
  26. 77
  27. 96
  28. 42
  29. 7
  30. 69
  31. 10
  32. 88
  33. 66
  34. 42
  35. 88
  36. 16
  37. 95
  38. 41
  39. 24
  40. 90

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