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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 320 · 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: 74, 23, 71, 37? (a) 74 (b) 23 (c) 71 (d) 37
  2. 2.Which number is the odd one out: 89, 31, 3, 21? (a) 89 (b) 31 (c) 3 (d) 21
  3. 3.Which number is the odd one out: 23, 71, 18, 11? (a) 23 (b) 71 (c) 18 (d) 11
  4. 4.Which number is the odd one out: 84, 89, 17, 73? (a) 84 (b) 89 (c) 17 (d) 73
  5. 5.Which number is the odd one out: 11, 59, 61, 54? (a) 11 (b) 59 (c) 61 (d) 54
  6. 6.Which number is the odd one out: 83, 23, 73, 46? (a) 83 (b) 23 (c) 73 (d) 46
  7. 7.Which number is the odd one out: 16, 8, 45, 64? (a) 16 (b) 8 (c) 45 (d) 64
  8. 8.Which number is the odd one out: 92, 79, 31, 89? (a) 92 (b) 79 (c) 31 (d) 89
  9. 9.Which number is the odd one out: 88, 82, 32, 53? (a) 88 (b) 82 (c) 32 (d) 53
  10. 10.Which number is the odd one out: 2, 70, 37, 17? (a) 2 (b) 70 (c) 37 (d) 17
  11. 11.Which number is the odd one out: 89, 61, 37, 68? (a) 89 (b) 61 (c) 37 (d) 68
  12. 12.Which number is the odd one out: 77, 63, 9, 49? (a) 77 (b) 63 (c) 9 (d) 49
  13. 13.Which number is the odd one out: 29, 37, 47, 26? (a) 29 (b) 37 (c) 47 (d) 26
  14. 14.Which number is the odd one out: 92, 13, 17, 97? (a) 92 (b) 13 (c) 17 (d) 97
  15. 15.Which number is the odd one out: 31, 13, 6, 37? (a) 31 (b) 13 (c) 6 (d) 37
  16. 16.Which number is the odd one out: 89, 55, 23, 83? (a) 89 (b) 55 (c) 23 (d) 83
  17. 17.Which number is the odd one out: 47, 54, 11, 67? (a) 47 (b) 54 (c) 11 (d) 67
  18. 18.Which number is the odd one out: 41, 26, 31, 2? (a) 41 (b) 26 (c) 31 (d) 2
  19. 19.Which number is the odd one out: 19, 66, 43, 97? (a) 19 (b) 66 (c) 43 (d) 97
  20. 20.Which number is the odd one out: 64, 17, 4, 16? (a) 64 (b) 17 (c) 4 (d) 16
  21. 21.Which number is the odd one out: 85, 10, 46, 55? (a) 85 (b) 10 (c) 46 (d) 55
  22. 22.Which number is the odd one out: 73, 47, 61, 40? (a) 73 (b) 47 (c) 61 (d) 40
  23. 23.Which number is the odd one out: 47, 97, 59, 56? (a) 47 (b) 97 (c) 59 (d) 56
  24. 24.Which number is the odd one out: 59, 53, 73, 57? (a) 59 (b) 53 (c) 73 (d) 57
  25. 25.Which number is the odd one out: 30, 19, 78, 10? (a) 30 (b) 19 (c) 78 (d) 10
  26. 26.Which number is the odd one out: 77, 37, 17, 89? (a) 77 (b) 37 (c) 17 (d) 89
  27. 27.Which number is the odd one out: 29, 11, 45, 47? (a) 29 (b) 11 (c) 45 (d) 47
  28. 28.Which number is the odd one out: 72, 19, 79, 53? (a) 72 (b) 19 (c) 79 (d) 53
  29. 29.Which number is the odd one out: 53, 40, 61, 11? (a) 53 (b) 40 (c) 61 (d) 11
  30. 30.Which number is the odd one out: 32, 17, 13, 37? (a) 32 (b) 17 (c) 13 (d) 37
  31. 31.Which number is the odd one out: 73, 5, 95, 55? (a) 73 (b) 5 (c) 95 (d) 55
  32. 32.Which number is the odd one out: 17, 83, 36, 97? (a) 17 (b) 83 (c) 36 (d) 97
  33. 33.Which number is the odd one out: 46, 71, 23, 43? (a) 46 (b) 71 (c) 23 (d) 43
  34. 34.Which number is the odd one out: 17, 81, 41, 13? (a) 17 (b) 81 (c) 41 (d) 13
  35. 35.Which number is the odd one out: 55, 60, 66, 12? (a) 55 (b) 60 (c) 66 (d) 12
  36. 36.Which number is the odd one out: 41, 2, 86, 53? (a) 41 (b) 2 (c) 86 (d) 53
  37. 37.Which number is the odd one out: 23, 83, 57, 43? (a) 23 (b) 83 (c) 57 (d) 43
  38. 38.Which number is the odd one out: 40, 88, 82, 35? (a) 40 (b) 88 (c) 82 (d) 35
  39. 39.Which number is the odd one out: 32, 67, 88, 8? (a) 32 (b) 67 (c) 88 (d) 8
  40. 40.Which number is the odd one out: 73, 43, 19, 24? (a) 73 (b) 43 (c) 19 (d) 24

Answer key

  1. 74
  2. 21
  3. 18
  4. 84
  5. 54
  6. 46
  7. 45
  8. 92
  9. 53
  10. 70
  11. 68
  12. 9
  13. 26
  14. 92
  15. 6
  16. 55
  17. 54
  18. 26
  19. 66
  20. 17
  21. 46
  22. 40
  23. 56
  24. 57
  25. 19
  26. 77
  27. 45
  28. 72
  29. 40
  30. 32
  31. 73
  32. 36
  33. 46
  34. 81
  35. 55
  36. 86
  37. 57
  38. 35
  39. 67
  40. 24

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