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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 125 · 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, 46, 43, 11? (a) 13 (b) 46 (c) 43 (d) 11
  2. 2.Which number is the odd one out: 50, 53, 89, 79? (a) 50 (b) 53 (c) 89 (d) 79
  3. 3.Which number is the odd one out: 74, 23, 13, 31? (a) 74 (b) 23 (c) 13 (d) 31
  4. 4.Which number is the odd one out: 17, 94, 71, 53? (a) 17 (b) 94 (c) 71 (d) 53
  5. 5.Which number is the odd one out: 59, 53, 26, 79? (a) 59 (b) 53 (c) 26 (d) 79
  6. 6.Which number is the odd one out: 41, 29, 52, 97? (a) 41 (b) 29 (c) 52 (d) 97
  7. 7.Which number is the odd one out: 19, 99, 47, 11? (a) 19 (b) 99 (c) 47 (d) 11
  8. 8.Which number is the odd one out: 25, 97, 67, 41? (a) 25 (b) 97 (c) 67 (d) 41
  9. 9.Which number is the odd one out: 65, 11, 43, 71? (a) 65 (b) 11 (c) 43 (d) 71
  10. 10.Which number is the odd one out: 33, 53, 23, 97? (a) 33 (b) 53 (c) 23 (d) 97
  11. 11.Which number is the odd one out: 3, 17, 63, 47? (a) 3 (b) 17 (c) 63 (d) 47
  12. 12.Which number is the odd one out: 86, 69, 44, 92? (a) 86 (b) 69 (c) 44 (d) 92
  13. 13.Which number is the odd one out: 47, 9, 11, 13? (a) 47 (b) 9 (c) 11 (d) 13
  14. 14.Which number is the odd one out: 16, 64, 40, 75? (a) 16 (b) 64 (c) 40 (d) 75
  15. 15.Which number is the odd one out: 23, 76, 67, 71? (a) 23 (b) 76 (c) 67 (d) 71
  16. 16.Which number is the odd one out: 64, 16, 8, 54? (a) 64 (b) 16 (c) 8 (d) 54
  17. 17.Which number is the odd one out: 21, 96, 48, 84? (a) 21 (b) 96 (c) 48 (d) 84
  18. 18.Which number is the odd one out: 17, 53, 40, 31? (a) 17 (b) 53 (c) 40 (d) 31
  19. 19.Which number is the odd one out: 32, 88, 80, 25? (a) 32 (b) 88 (c) 80 (d) 25
  20. 20.Which number is the odd one out: 61, 29, 59, 76? (a) 61 (b) 29 (c) 59 (d) 76
  21. 21.Which number is the odd one out: 83, 33, 13, 30? (a) 83 (b) 33 (c) 13 (d) 30
  22. 22.Which number is the odd one out: 71, 70, 14, 35? (a) 71 (b) 70 (c) 14 (d) 35
  23. 23.Which number is the odd one out: 66, 14, 77, 91? (a) 66 (b) 14 (c) 77 (d) 91
  24. 24.Which number is the odd one out: 71, 19, 34, 17? (a) 71 (b) 19 (c) 34 (d) 17
  25. 25.Which number is the odd one out: 47, 6, 17, 37? (a) 47 (b) 6 (c) 17 (d) 37
  26. 26.Which number is the odd one out: 91, 42, 11, 31? (a) 91 (b) 42 (c) 11 (d) 31
  27. 27.Which number is the odd one out: 75, 17, 37, 5? (a) 75 (b) 17 (c) 37 (d) 5
  28. 28.Which number is the odd one out: 24, 36, 8, 16? (a) 24 (b) 36 (c) 8 (d) 16
  29. 29.Which number is the odd one out: 67, 19, 70, 95? (a) 67 (b) 19 (c) 70 (d) 95
  30. 30.Which number is the odd one out: 7, 73, 97, 63? (a) 7 (b) 73 (c) 97 (d) 63
  31. 31.Which number is the odd one out: 23, 67, 38, 11? (a) 23 (b) 67 (c) 38 (d) 11
  32. 32.Which number is the odd one out: 66, 2, 47, 19? (a) 66 (b) 2 (c) 47 (d) 19
  33. 33.Which number is the odd one out: 60, 43, 59, 47? (a) 60 (b) 43 (c) 59 (d) 47
  34. 34.Which number is the odd one out: 61, 10, 11, 23? (a) 61 (b) 10 (c) 11 (d) 23
  35. 35.Which number is the odd one out: 88, 13, 48, 24? (a) 88 (b) 13 (c) 48 (d) 24
  36. 36.Which number is the odd one out: 37, 8, 71, 23? (a) 37 (b) 8 (c) 71 (d) 23
  37. 37.Which number is the odd one out: 11, 53, 67, 18? (a) 11 (b) 53 (c) 67 (d) 18
  38. 38.Which number is the odd one out: 6, 9, 18, 81? (a) 6 (b) 9 (c) 18 (d) 81
  39. 39.Which number is the odd one out: 2, 31, 56, 73? (a) 2 (b) 31 (c) 56 (d) 73
  40. 40.Which number is the odd one out: 18, 13, 11, 17? (a) 18 (b) 13 (c) 11 (d) 17

Answer key

  1. 46
  2. 50
  3. 74
  4. 94
  5. 26
  6. 52
  7. 99
  8. 25
  9. 65
  10. 33
  11. 63
  12. 69
  13. 9
  14. 75
  15. 76
  16. 54
  17. 21
  18. 40
  19. 25
  20. 76
  21. 30
  22. 71
  23. 66
  24. 34
  25. 6
  26. 42
  27. 75
  28. 36
  29. 70
  30. 63
  31. 38
  32. 66
  33. 60
  34. 10
  35. 13
  36. 8
  37. 18
  38. 6
  39. 56
  40. 18

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