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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 178 · 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: 17, 19, 73, 58? (a) 17 (b) 19 (c) 73 (d) 58
  2. 2.Which number is the odd one out: 60, 5, 12, 92? (a) 60 (b) 5 (c) 12 (d) 92
  3. 3.Which number is the odd one out: 20, 76, 45, 26? (a) 20 (b) 76 (c) 45 (d) 26
  4. 4.Which number is the odd one out: 30, 8, 24, 80? (a) 30 (b) 8 (c) 24 (d) 80
  5. 5.Which number is the odd one out: 27, 73, 19, 53? (a) 27 (b) 73 (c) 19 (d) 53
  6. 6.Which number is the odd one out: 18, 97, 59, 17? (a) 18 (b) 97 (c) 59 (d) 17
  7. 7.Which number is the odd one out: 14, 28, 40, 98? (a) 14 (b) 28 (c) 40 (d) 98
  8. 8.Which number is the odd one out: 13, 64, 19, 47? (a) 13 (b) 64 (c) 19 (d) 47
  9. 9.Which number is the odd one out: 23, 83, 89, 8? (a) 23 (b) 83 (c) 89 (d) 8
  10. 10.Which number is the odd one out: 89, 43, 2, 90? (a) 89 (b) 43 (c) 2 (d) 90
  11. 11.Which number is the odd one out: 20, 92, 22, 15? (a) 20 (b) 92 (c) 22 (d) 15
  12. 12.Which number is the odd one out: 11, 88, 4, 16? (a) 11 (b) 88 (c) 4 (d) 16
  13. 13.Which number is the odd one out: 54, 37, 27, 18? (a) 54 (b) 37 (c) 27 (d) 18
  14. 14.Which number is the odd one out: 37, 90, 45, 18? (a) 37 (b) 90 (c) 45 (d) 18
  15. 15.Which number is the odd one out: 99, 91, 27, 63? (a) 99 (b) 91 (c) 27 (d) 63
  16. 16.Which number is the odd one out: 47, 19, 14, 23? (a) 47 (b) 19 (c) 14 (d) 23
  17. 17.Which number is the odd one out: 79, 43, 45, 23? (a) 79 (b) 43 (c) 45 (d) 23
  18. 18.Which number is the odd one out: 15, 5, 23, 61? (a) 15 (b) 5 (c) 23 (d) 61
  19. 19.Which number is the odd one out: 85, 83, 79, 61? (a) 85 (b) 83 (c) 79 (d) 61
  20. 20.Which number is the odd one out: 39, 3, 97, 51? (a) 39 (b) 3 (c) 97 (d) 51
  21. 21.Which number is the odd one out: 80, 98, 20, 88? (a) 80 (b) 98 (c) 20 (d) 88
  22. 22.Which number is the odd one out: 31, 29, 46, 97? (a) 31 (b) 29 (c) 46 (d) 97
  23. 23.Which number is the odd one out: 17, 29, 18, 41? (a) 17 (b) 29 (c) 18 (d) 41
  24. 24.Which number is the odd one out: 21, 3, 41, 23? (a) 21 (b) 3 (c) 41 (d) 23
  25. 25.Which number is the odd one out: 29, 73, 6, 13? (a) 29 (b) 73 (c) 6 (d) 13
  26. 26.Which number is the odd one out: 41, 16, 2, 11? (a) 41 (b) 16 (c) 2 (d) 11
  27. 27.Which number is the odd one out: 4, 64, 16, 89? (a) 4 (b) 64 (c) 16 (d) 89
  28. 28.Which number is the odd one out: 61, 28, 23, 97? (a) 61 (b) 28 (c) 23 (d) 97
  29. 29.Which number is the odd one out: 58, 34, 38, 27? (a) 58 (b) 34 (c) 38 (d) 27
  30. 30.Which number is the odd one out: 59, 20, 71, 2? (a) 59 (b) 20 (c) 71 (d) 2
  31. 31.Which number is the odd one out: 62, 53, 22, 74? (a) 62 (b) 53 (c) 22 (d) 74
  32. 32.Which number is the odd one out: 31, 27, 67, 29? (a) 31 (b) 27 (c) 67 (d) 29
  33. 33.Which number is the odd one out: 17, 60, 67, 11? (a) 17 (b) 60 (c) 67 (d) 11
  34. 34.Which number is the odd one out: 29, 18, 37, 43? (a) 29 (b) 18 (c) 37 (d) 43
  35. 35.Which number is the odd one out: 62, 23, 53, 97? (a) 62 (b) 23 (c) 53 (d) 97
  36. 36.Which number is the odd one out: 2, 16, 17, 19? (a) 2 (b) 16 (c) 17 (d) 19
  37. 37.Which number is the odd one out: 64, 4, 89, 16? (a) 64 (b) 4 (c) 89 (d) 16
  38. 38.Which number is the odd one out: 72, 89, 59, 43? (a) 72 (b) 89 (c) 59 (d) 43
  39. 39.Which number is the odd one out: 70, 7, 19, 5? (a) 70 (b) 7 (c) 19 (d) 5
  40. 40.Which number is the odd one out: 90, 45, 18, 83? (a) 90 (b) 45 (c) 18 (d) 83

Answer key

  1. 58
  2. 5
  3. 45
  4. 30
  5. 27
  6. 18
  7. 40
  8. 64
  9. 8
  10. 90
  11. 15
  12. 11
  13. 37
  14. 37
  15. 91
  16. 14
  17. 45
  18. 15
  19. 85
  20. 97
  21. 98
  22. 46
  23. 18
  24. 21
  25. 6
  26. 16
  27. 89
  28. 28
  29. 27
  30. 20
  31. 53
  32. 27
  33. 60
  34. 18
  35. 62
  36. 16
  37. 89
  38. 72
  39. 70
  40. 83

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