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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 975 · 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, 98, 14, 90? (a) 70 (b) 98 (c) 14 (d) 90
  2. 2.Which number is the odd one out: 83, 17, 78, 29? (a) 83 (b) 17 (c) 78 (d) 29
  3. 3.Which number is the odd one out: 53, 28, 2, 79? (a) 53 (b) 28 (c) 2 (d) 79
  4. 4.Which number is the odd one out: 53, 31, 29, 34? (a) 53 (b) 31 (c) 29 (d) 34
  5. 5.Which number is the odd one out: 29, 38, 59, 89? (a) 29 (b) 38 (c) 59 (d) 89
  6. 6.Which number is the odd one out: 55, 89, 13, 97? (a) 55 (b) 89 (c) 13 (d) 97
  7. 7.Which number is the odd one out: 59, 68, 17, 83? (a) 59 (b) 68 (c) 17 (d) 83
  8. 8.Which number is the odd one out: 32, 16, 64, 59? (a) 32 (b) 16 (c) 64 (d) 59
  9. 9.Which number is the odd one out: 24, 72, 99, 27? (a) 24 (b) 72 (c) 99 (d) 27
  10. 10.Which number is the odd one out: 9, 99, 81, 94? (a) 9 (b) 99 (c) 81 (d) 94
  11. 11.Which number is the odd one out: 89, 43, 41, 8? (a) 89 (b) 43 (c) 41 (d) 8
  12. 12.Which number is the odd one out: 64, 74, 16, 4? (a) 64 (b) 74 (c) 16 (d) 4
  13. 13.Which number is the odd one out: 85, 65, 9, 15? (a) 85 (b) 65 (c) 9 (d) 15
  14. 14.Which number is the odd one out: 79, 8, 88, 32? (a) 79 (b) 8 (c) 88 (d) 32
  15. 15.Which number is the odd one out: 13, 19, 75, 43? (a) 13 (b) 19 (c) 75 (d) 43
  16. 16.Which number is the odd one out: 13, 53, 61, 48? (a) 13 (b) 53 (c) 61 (d) 48
  17. 17.Which number is the odd one out: 19, 39, 71, 61? (a) 19 (b) 39 (c) 71 (d) 61
  18. 18.Which number is the odd one out: 44, 62, 48, 96? (a) 44 (b) 62 (c) 48 (d) 96
  19. 19.Which number is the odd one out: 75, 41, 79, 59? (a) 75 (b) 41 (c) 79 (d) 59
  20. 20.Which number is the odd one out: 53, 50, 41, 73? (a) 53 (b) 50 (c) 41 (d) 73
  21. 21.Which number is the odd one out: 5, 90, 47, 41? (a) 5 (b) 90 (c) 47 (d) 41
  22. 22.Which number is the odd one out: 53, 57, 97, 41? (a) 53 (b) 57 (c) 97 (d) 41
  23. 23.Which number is the odd one out: 16, 2, 19, 61? (a) 16 (b) 2 (c) 19 (d) 61
  24. 24.Which number is the odd one out: 53, 4, 2, 29? (a) 53 (b) 4 (c) 2 (d) 29
  25. 25.Which number is the odd one out: 11, 31, 43, 46? (a) 11 (b) 31 (c) 43 (d) 46
  26. 26.Which number is the odd one out: 34, 73, 11, 43? (a) 34 (b) 73 (c) 11 (d) 43
  27. 27.Which number is the odd one out: 41, 53, 71, 69? (a) 41 (b) 53 (c) 71 (d) 69
  28. 28.Which number is the odd one out: 17, 48, 41, 29? (a) 17 (b) 48 (c) 41 (d) 29
  29. 29.Which number is the odd one out: 80, 40, 87, 20? (a) 80 (b) 40 (c) 87 (d) 20
  30. 30.Which number is the odd one out: 71, 80, 67, 31? (a) 71 (b) 80 (c) 67 (d) 31
  31. 31.Which number is the odd one out: 20, 38, 52, 45? (a) 20 (b) 38 (c) 52 (d) 45
  32. 32.Which number is the odd one out: 71, 41, 53, 57? (a) 71 (b) 41 (c) 53 (d) 57
  33. 33.Which number is the odd one out: 42, 16, 4, 64? (a) 42 (b) 16 (c) 4 (d) 64
  34. 34.Which number is the odd one out: 13, 73, 93, 43? (a) 13 (b) 73 (c) 93 (d) 43
  35. 35.Which number is the odd one out: 50, 44, 55, 85? (a) 50 (b) 44 (c) 55 (d) 85
  36. 36.Which number is the odd one out: 41, 10, 31, 71? (a) 41 (b) 10 (c) 31 (d) 71
  37. 37.Which number is the odd one out: 3, 54, 67, 2? (a) 3 (b) 54 (c) 67 (d) 2
  38. 38.Which number is the odd one out: 78, 66, 96, 32? (a) 78 (b) 66 (c) 96 (d) 32
  39. 39.Which number is the odd one out: 54, 72, 49, 96? (a) 54 (b) 72 (c) 49 (d) 96
  40. 40.Which number is the odd one out: 61, 47, 43, 54? (a) 61 (b) 47 (c) 43 (d) 54

Answer key

  1. 90
  2. 78
  3. 28
  4. 34
  5. 38
  6. 55
  7. 68
  8. 59
  9. 24
  10. 94
  11. 8
  12. 74
  13. 9
  14. 79
  15. 75
  16. 48
  17. 39
  18. 62
  19. 75
  20. 50
  21. 90
  22. 57
  23. 16
  24. 4
  25. 46
  26. 34
  27. 69
  28. 48
  29. 87
  30. 80
  31. 45
  32. 57
  33. 42
  34. 93
  35. 44
  36. 10
  37. 54
  38. 32
  39. 49
  40. 54

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