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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 271 · 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, 5, 15, 3? (a) 17 (b) 5 (c) 15 (d) 3
  2. 2.Which number is the odd one out: 66, 61, 67, 29? (a) 66 (b) 61 (c) 67 (d) 29
  3. 3.Which number is the odd one out: 39, 2, 71, 51? (a) 39 (b) 2 (c) 71 (d) 51
  4. 4.Which number is the odd one out: 32, 17, 41, 89? (a) 32 (b) 17 (c) 41 (d) 89
  5. 5.Which number is the odd one out: 78, 5, 48, 96? (a) 78 (b) 5 (c) 48 (d) 96
  6. 6.Which number is the odd one out: 14, 24, 84, 96? (a) 14 (b) 24 (c) 84 (d) 96
  7. 7.Which number is the odd one out: 20, 78, 6, 12? (a) 20 (b) 78 (c) 6 (d) 12
  8. 8.Which number is the odd one out: 45, 25, 36, 65? (a) 45 (b) 25 (c) 36 (d) 65
  9. 9.Which number is the odd one out: 23, 73, 59, 84? (a) 23 (b) 73 (c) 59 (d) 84
  10. 10.Which number is the odd one out: 17, 21, 41, 89? (a) 17 (b) 21 (c) 41 (d) 89
  11. 11.Which number is the odd one out: 16, 10, 88, 64? (a) 16 (b) 10 (c) 88 (d) 64
  12. 12.Which number is the odd one out: 35, 98, 83, 70? (a) 35 (b) 98 (c) 83 (d) 70
  13. 13.Which number is the odd one out: 51, 47, 79, 41? (a) 51 (b) 47 (c) 79 (d) 41
  14. 14.Which number is the odd one out: 61, 95, 20, 53? (a) 61 (b) 95 (c) 20 (d) 53
  15. 15.Which number is the odd one out: 19, 23, 86, 31? (a) 19 (b) 23 (c) 86 (d) 31
  16. 16.Which number is the odd one out: 13, 88, 67, 41? (a) 13 (b) 88 (c) 67 (d) 41
  17. 17.Which number is the odd one out: 3, 47, 54, 13? (a) 3 (b) 47 (c) 54 (d) 13
  18. 18.Which number is the odd one out: 7, 49, 61, 19? (a) 7 (b) 49 (c) 61 (d) 19
  19. 19.Which number is the odd one out: 31, 36, 2, 61? (a) 31 (b) 36 (c) 2 (d) 61
  20. 20.Which number is the odd one out: 71, 73, 97, 65? (a) 71 (b) 73 (c) 97 (d) 65
  21. 21.Which number is the odd one out: 13, 10, 31, 73? (a) 13 (b) 10 (c) 31 (d) 73
  22. 22.Which number is the odd one out: 11, 61, 83, 99? (a) 11 (b) 61 (c) 83 (d) 99
  23. 23.Which number is the odd one out: 11, 13, 45, 71? (a) 11 (b) 13 (c) 45 (d) 71
  24. 24.Which number is the odd one out: 37, 59, 74, 61? (a) 37 (b) 59 (c) 74 (d) 61
  25. 25.Which number is the odd one out: 19, 45, 3, 5? (a) 19 (b) 45 (c) 3 (d) 5
  26. 26.Which number is the odd one out: 93, 48, 71, 11? (a) 93 (b) 48 (c) 71 (d) 11
  27. 27.Which number is the odd one out: 71, 13, 44, 73? (a) 71 (b) 13 (c) 44 (d) 73
  28. 28.Which number is the odd one out: 73, 47, 69, 89? (a) 73 (b) 47 (c) 69 (d) 89
  29. 29.Which number is the odd one out: 3, 2, 72, 13? (a) 3 (b) 2 (c) 72 (d) 13
  30. 30.Which number is the odd one out: 32, 29, 31, 47? (a) 32 (b) 29 (c) 31 (d) 47
  31. 31.Which number is the odd one out: 39, 97, 72, 47? (a) 39 (b) 97 (c) 72 (d) 47
  32. 32.Which number is the odd one out: 32, 88, 49, 8? (a) 32 (b) 88 (c) 49 (d) 8
  33. 33.Which number is the odd one out: 86, 67, 53, 31? (a) 86 (b) 67 (c) 53 (d) 31
  34. 34.Which number is the odd one out: 77, 70, 19, 23? (a) 77 (b) 70 (c) 19 (d) 23
  35. 35.Which number is the odd one out: 83, 93, 17, 71? (a) 83 (b) 93 (c) 17 (d) 71
  36. 36.Which number is the odd one out: 96, 95, 75, 50? (a) 96 (b) 95 (c) 75 (d) 50
  37. 37.Which number is the odd one out: 31, 11, 47, 2? (a) 31 (b) 11 (c) 47 (d) 2
  38. 38.Which number is the odd one out: 78, 99, 48, 72? (a) 78 (b) 99 (c) 48 (d) 72
  39. 39.Which number is the odd one out: 96, 77, 48, 56? (a) 96 (b) 77 (c) 48 (d) 56
  40. 40.Which number is the odd one out: 31, 73, 10, 47? (a) 31 (b) 73 (c) 10 (d) 47

Answer key

  1. 15
  2. 66
  3. 2
  4. 32
  5. 5
  6. 14
  7. 20
  8. 36
  9. 84
  10. 21
  11. 10
  12. 83
  13. 51
  14. 20
  15. 86
  16. 88
  17. 54
  18. 49
  19. 36
  20. 65
  21. 10
  22. 99
  23. 45
  24. 74
  25. 45
  26. 48
  27. 44
  28. 69
  29. 72
  30. 32
  31. 72
  32. 49
  33. 86
  34. 70
  35. 93
  36. 96
  37. 2
  38. 99
  39. 77
  40. 10

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