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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 224 · 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: 68, 59, 43, 89? (a) 68 (b) 59 (c) 43 (d) 89
  2. 2.Which number is the odd one out: 30, 90, 99, 66? (a) 30 (b) 90 (c) 99 (d) 66
  3. 3.Which number is the odd one out: 31, 37, 13, 70? (a) 31 (b) 37 (c) 13 (d) 70
  4. 4.Which number is the odd one out: 36, 15, 75, 45? (a) 36 (b) 15 (c) 75 (d) 45
  5. 5.Which number is the odd one out: 29, 23, 59, 40? (a) 29 (b) 23 (c) 59 (d) 40
  6. 6.Which number is the odd one out: 18, 54, 27, 35? (a) 18 (b) 54 (c) 27 (d) 35
  7. 7.Which number is the odd one out: 73, 31, 48, 3? (a) 73 (b) 31 (c) 48 (d) 3
  8. 8.Which number is the odd one out: 29, 97, 26, 2? (a) 29 (b) 97 (c) 26 (d) 2
  9. 9.Which number is the odd one out: 39, 4, 79, 3? (a) 39 (b) 4 (c) 79 (d) 3
  10. 10.Which number is the odd one out: 91, 41, 19, 37? (a) 91 (b) 41 (c) 19 (d) 37
  11. 11.Which number is the odd one out: 19, 24, 59, 2? (a) 19 (b) 24 (c) 59 (d) 2
  12. 12.Which number is the odd one out: 89, 46, 47, 67? (a) 89 (b) 46 (c) 47 (d) 67
  13. 13.Which number is the odd one out: 23, 93, 67, 17? (a) 23 (b) 93 (c) 67 (d) 17
  14. 14.Which number is the odd one out: 13, 84, 71, 11? (a) 13 (b) 84 (c) 71 (d) 11
  15. 15.Which number is the odd one out: 40, 80, 88, 17? (a) 40 (b) 80 (c) 88 (d) 17
  16. 16.Which number is the odd one out: 54, 29, 2, 31? (a) 54 (b) 29 (c) 2 (d) 31
  17. 17.Which number is the odd one out: 73, 56, 47, 97? (a) 73 (b) 56 (c) 47 (d) 97
  18. 18.Which number is the odd one out: 97, 11, 89, 77? (a) 97 (b) 11 (c) 89 (d) 77
  19. 19.Which number is the odd one out: 51, 57, 50, 39? (a) 51 (b) 57 (c) 50 (d) 39
  20. 20.Which number is the odd one out: 61, 19, 34, 17? (a) 61 (b) 19 (c) 34 (d) 17
  21. 21.Which number is the odd one out: 41, 79, 56, 61? (a) 41 (b) 79 (c) 56 (d) 61
  22. 22.Which number is the odd one out: 92, 45, 62, 68? (a) 92 (b) 45 (c) 62 (d) 68
  23. 23.Which number is the odd one out: 18, 5, 6, 90? (a) 18 (b) 5 (c) 6 (d) 90
  24. 24.Which number is the odd one out: 96, 68, 19, 24? (a) 96 (b) 68 (c) 19 (d) 24
  25. 25.Which number is the odd one out: 81, 3, 89, 43? (a) 81 (b) 3 (c) 89 (d) 43
  26. 26.Which number is the odd one out: 28, 7, 92, 68? (a) 28 (b) 7 (c) 92 (d) 68
  27. 27.Which number is the odd one out: 18, 73, 67, 53? (a) 18 (b) 73 (c) 67 (d) 53
  28. 28.Which number is the odd one out: 5, 95, 59, 47? (a) 5 (b) 95 (c) 59 (d) 47
  29. 29.Which number is the odd one out: 88, 37, 61, 41? (a) 88 (b) 37 (c) 61 (d) 41
  30. 30.Which number is the odd one out: 26, 20, 12, 60? (a) 26 (b) 20 (c) 12 (d) 60
  31. 31.Which number is the odd one out: 71, 16, 41, 17? (a) 71 (b) 16 (c) 41 (d) 17
  32. 32.Which number is the odd one out: 30, 97, 17, 61? (a) 30 (b) 97 (c) 17 (d) 61
  33. 33.Which number is the odd one out: 78, 88, 76, 24? (a) 78 (b) 88 (c) 76 (d) 24
  34. 34.Which number is the odd one out: 90, 23, 89, 27? (a) 90 (b) 23 (c) 89 (d) 27
  35. 35.Which number is the odd one out: 29, 2, 86, 17? (a) 29 (b) 2 (c) 86 (d) 17
  36. 36.Which number is the odd one out: 64, 79, 73, 19? (a) 64 (b) 79 (c) 73 (d) 19
  37. 37.Which number is the odd one out: 8, 24, 96, 59? (a) 8 (b) 24 (c) 96 (d) 59
  38. 38.Which number is the odd one out: 89, 58, 61, 73? (a) 89 (b) 58 (c) 61 (d) 73
  39. 39.Which number is the odd one out: 37, 5, 45, 11? (a) 37 (b) 5 (c) 45 (d) 11
  40. 40.Which number is the odd one out: 29, 67, 41, 74? (a) 29 (b) 67 (c) 41 (d) 74

Answer key

  1. 68
  2. 99
  3. 70
  4. 36
  5. 40
  6. 35
  7. 48
  8. 26
  9. 4
  10. 91
  11. 24
  12. 46
  13. 93
  14. 84
  15. 17
  16. 54
  17. 56
  18. 77
  19. 50
  20. 34
  21. 56
  22. 45
  23. 5
  24. 19
  25. 81
  26. 7
  27. 18
  28. 95
  29. 88
  30. 26
  31. 16
  32. 30
  33. 78
  34. 90
  35. 86
  36. 64
  37. 59
  38. 58
  39. 45
  40. 74

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