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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 726 · 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: 31, 41, 68, 13? (a) 31 (b) 41 (c) 68 (d) 13
  2. 2.Which number is the odd one out: 11, 67, 72, 53? (a) 11 (b) 67 (c) 72 (d) 53
  3. 3.Which number is the odd one out: 56, 29, 79, 97? (a) 56 (b) 29 (c) 79 (d) 97
  4. 4.Which number is the odd one out: 56, 83, 17, 23? (a) 56 (b) 83 (c) 17 (d) 23
  5. 5.Which number is the odd one out: 37, 89, 96, 39? (a) 37 (b) 89 (c) 96 (d) 39
  6. 6.Which number is the odd one out: 29, 94, 22, 46? (a) 29 (b) 94 (c) 22 (d) 46
  7. 7.Which number is the odd one out: 19, 94, 53, 79? (a) 19 (b) 94 (c) 53 (d) 79
  8. 8.Which number is the odd one out: 88, 34, 59, 8? (a) 88 (b) 34 (c) 59 (d) 8
  9. 9.Which number is the odd one out: 97, 67, 95, 19? (a) 97 (b) 67 (c) 95 (d) 19
  10. 10.Which number is the odd one out: 9, 7, 99, 81? (a) 9 (b) 7 (c) 99 (d) 81
  11. 11.Which number is the odd one out: 89, 49, 79, 61? (a) 89 (b) 49 (c) 79 (d) 61
  12. 12.Which number is the odd one out: 94, 34, 22, 51? (a) 94 (b) 34 (c) 22 (d) 51
  13. 13.Which number is the odd one out: 53, 65, 5, 76? (a) 53 (b) 65 (c) 5 (d) 76
  14. 14.Which number is the odd one out: 88, 48, 70, 96? (a) 88 (b) 48 (c) 70 (d) 96
  15. 15.Which number is the odd one out: 91, 11, 77, 7? (a) 91 (b) 11 (c) 77 (d) 7
  16. 16.Which number is the odd one out: 67, 4, 11, 79? (a) 67 (b) 4 (c) 11 (d) 79
  17. 17.Which number is the odd one out: 61, 31, 25, 29? (a) 61 (b) 31 (c) 25 (d) 29
  18. 18.Which number is the odd one out: 47, 53, 20, 17? (a) 47 (b) 53 (c) 20 (d) 17
  19. 19.Which number is the odd one out: 29, 83, 4, 73? (a) 29 (b) 83 (c) 4 (d) 73
  20. 20.Which number is the odd one out: 39, 84, 12, 91? (a) 39 (b) 84 (c) 12 (d) 91
  21. 21.Which number is the odd one out: 12, 13, 89, 11? (a) 12 (b) 13 (c) 89 (d) 11
  22. 22.Which number is the odd one out: 57, 5, 75, 93? (a) 57 (b) 5 (c) 75 (d) 93
  23. 23.Which number is the odd one out: 19, 11, 29, 52? (a) 19 (b) 11 (c) 29 (d) 52
  24. 24.Which number is the odd one out: 99, 57, 27, 98? (a) 99 (b) 57 (c) 27 (d) 98
  25. 25.Which number is the odd one out: 78, 66, 34, 13? (a) 78 (b) 66 (c) 34 (d) 13
  26. 26.Which number is the odd one out: 17, 53, 54, 89? (a) 17 (b) 53 (c) 54 (d) 89
  27. 27.Which number is the odd one out: 41, 61, 71, 46? (a) 41 (b) 61 (c) 71 (d) 46
  28. 28.Which number is the odd one out: 9, 23, 43, 61? (a) 9 (b) 23 (c) 43 (d) 61
  29. 29.Which number is the odd one out: 66, 61, 51, 59? (a) 66 (b) 61 (c) 51 (d) 59
  30. 30.Which number is the odd one out: 11, 67, 86, 79? (a) 11 (b) 67 (c) 86 (d) 79
  31. 31.Which number is the odd one out: 90, 73, 41, 47? (a) 90 (b) 73 (c) 41 (d) 47
  32. 32.Which number is the odd one out: 32, 10, 12, 96? (a) 32 (b) 10 (c) 12 (d) 96
  33. 33.Which number is the odd one out: 14, 17, 31, 73? (a) 14 (b) 17 (c) 31 (d) 73
  34. 34.Which number is the odd one out: 13, 96, 97, 3? (a) 13 (b) 96 (c) 97 (d) 3
  35. 35.Which number is the odd one out: 97, 19, 67, 46? (a) 97 (b) 19 (c) 67 (d) 46
  36. 36.Which number is the odd one out: 94, 32, 4, 64? (a) 94 (b) 32 (c) 4 (d) 64
  37. 37.Which number is the odd one out: 76, 31, 97, 41? (a) 76 (b) 31 (c) 97 (d) 41
  38. 38.Which number is the odd one out: 19, 36, 29, 31? (a) 19 (b) 36 (c) 29 (d) 31
  39. 39.Which number is the odd one out: 19, 73, 32, 11? (a) 19 (b) 73 (c) 32 (d) 11
  40. 40.Which number is the odd one out: 31, 22, 29, 61? (a) 31 (b) 22 (c) 29 (d) 61

Answer key

  1. 68
  2. 72
  3. 56
  4. 56
  5. 96
  6. 29
  7. 94
  8. 59
  9. 95
  10. 7
  11. 49
  12. 51
  13. 76
  14. 70
  15. 11
  16. 4
  17. 25
  18. 20
  19. 4
  20. 91
  21. 12
  22. 5
  23. 52
  24. 98
  25. 13
  26. 54
  27. 46
  28. 9
  29. 66
  30. 86
  31. 90
  32. 10
  33. 14
  34. 96
  35. 46
  36. 94
  37. 76
  38. 36
  39. 32
  40. 22

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