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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 519 · 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, 71, 17, 83? (a) 70 (b) 71 (c) 17 (d) 83
  2. 2.Which number is the odd one out: 24, 80, 40, 84? (a) 24 (b) 80 (c) 40 (d) 84
  3. 3.Which number is the odd one out: 37, 19, 51, 36? (a) 37 (b) 19 (c) 51 (d) 36
  4. 4.Which number is the odd one out: 60, 24, 80, 17? (a) 60 (b) 24 (c) 80 (d) 17
  5. 5.Which number is the odd one out: 85, 93, 69, 50? (a) 85 (b) 93 (c) 69 (d) 50
  6. 6.Which number is the odd one out: 16, 64, 4, 95? (a) 16 (b) 64 (c) 4 (d) 95
  7. 7.Which number is the odd one out: 40, 20, 32, 21? (a) 40 (b) 20 (c) 32 (d) 21
  8. 8.Which number is the odd one out: 2, 56, 29, 23? (a) 2 (b) 56 (c) 29 (d) 23
  9. 9.Which number is the odd one out: 75, 65, 14, 15? (a) 75 (b) 65 (c) 14 (d) 15
  10. 10.Which number is the odd one out: 13, 11, 25, 19? (a) 13 (b) 11 (c) 25 (d) 19
  11. 11.Which number is the odd one out: 8, 4, 64, 51? (a) 8 (b) 4 (c) 64 (d) 51
  12. 12.Which number is the odd one out: 67, 15, 37, 3? (a) 67 (b) 15 (c) 37 (d) 3
  13. 13.Which number is the odd one out: 59, 3, 78, 47? (a) 59 (b) 3 (c) 78 (d) 47
  14. 14.Which number is the odd one out: 93, 2, 41, 51? (a) 93 (b) 2 (c) 41 (d) 51
  15. 15.Which number is the odd one out: 85, 43, 10, 73? (a) 85 (b) 43 (c) 10 (d) 73
  16. 16.Which number is the odd one out: 53, 29, 78, 2? (a) 53 (b) 29 (c) 78 (d) 2
  17. 17.Which number is the odd one out: 89, 97, 74, 79? (a) 89 (b) 97 (c) 74 (d) 79
  18. 18.Which number is the odd one out: 89, 37, 87, 53? (a) 89 (b) 37 (c) 87 (d) 53
  19. 19.Which number is the odd one out: 49, 83, 7, 29? (a) 49 (b) 83 (c) 7 (d) 29
  20. 20.Which number is the odd one out: 43, 37, 62, 2? (a) 43 (b) 37 (c) 62 (d) 2
  21. 21.Which number is the odd one out: 96, 24, 41, 12? (a) 96 (b) 24 (c) 41 (d) 12
  22. 22.Which number is the odd one out: 71, 62, 61, 23? (a) 71 (b) 62 (c) 61 (d) 23
  23. 23.Which number is the odd one out: 83, 4, 11, 71? (a) 83 (b) 4 (c) 11 (d) 71
  24. 24.Which number is the odd one out: 48, 6, 24, 95? (a) 48 (b) 6 (c) 24 (d) 95
  25. 25.Which number is the odd one out: 53, 59, 7, 14? (a) 53 (b) 59 (c) 7 (d) 14
  26. 26.Which number is the odd one out: 40, 88, 20, 79? (a) 40 (b) 88 (c) 20 (d) 79
  27. 27.Which number is the odd one out: 23, 79, 34, 73? (a) 23 (b) 79 (c) 34 (d) 73
  28. 28.Which number is the odd one out: 71, 86, 98, 14? (a) 71 (b) 86 (c) 98 (d) 14
  29. 29.Which number is the odd one out: 16, 4, 64, 18? (a) 16 (b) 4 (c) 64 (d) 18
  30. 30.Which number is the odd one out: 84, 24, 8, 88? (a) 84 (b) 24 (c) 8 (d) 88
  31. 31.Which number is the odd one out: 71, 61, 70, 31? (a) 71 (b) 61 (c) 70 (d) 31
  32. 32.Which number is the odd one out: 5, 23, 89, 15? (a) 5 (b) 23 (c) 89 (d) 15
  33. 33.Which number is the odd one out: 30, 67, 71, 29? (a) 30 (b) 67 (c) 71 (d) 29
  34. 34.Which number is the odd one out: 17, 40, 80, 38? (a) 17 (b) 40 (c) 80 (d) 38
  35. 35.Which number is the odd one out: 77, 14, 46, 58? (a) 77 (b) 14 (c) 46 (d) 58
  36. 36.Which number is the odd one out: 37, 34, 19, 17? (a) 37 (b) 34 (c) 19 (d) 17
  37. 37.Which number is the odd one out: 89, 73, 16, 17? (a) 89 (b) 73 (c) 16 (d) 17
  38. 38.Which number is the odd one out: 67, 63, 3, 71? (a) 67 (b) 63 (c) 3 (d) 71
  39. 39.Which number is the odd one out: 26, 89, 71, 37? (a) 26 (b) 89 (c) 71 (d) 37
  40. 40.Which number is the odd one out: 4, 16, 82, 64? (a) 4 (b) 16 (c) 82 (d) 64

Answer key

  1. 70
  2. 84
  3. 36
  4. 17
  5. 50
  6. 95
  7. 21
  8. 56
  9. 14
  10. 25
  11. 51
  12. 15
  13. 78
  14. 2
  15. 10
  16. 78
  17. 74
  18. 87
  19. 49
  20. 62
  21. 41
  22. 62
  23. 4
  24. 95
  25. 14
  26. 79
  27. 34
  28. 71
  29. 18
  30. 84
  31. 70
  32. 15
  33. 30
  34. 17
  35. 77
  36. 34
  37. 16
  38. 63
  39. 26
  40. 82

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