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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 576 · 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: 85, 61, 73, 5? (a) 85 (b) 61 (c) 73 (d) 5
  2. 2.Which number is the odd one out: 78, 61, 19, 57? (a) 78 (b) 61 (c) 19 (d) 57
  3. 3.Which number is the odd one out: 23, 11, 6, 19? (a) 23 (b) 11 (c) 6 (d) 19
  4. 4.Which number is the odd one out: 66, 13, 53, 61? (a) 66 (b) 13 (c) 53 (d) 61
  5. 5.Which number is the odd one out: 90, 82, 35, 54? (a) 90 (b) 82 (c) 35 (d) 54
  6. 6.Which number is the odd one out: 80, 8, 51, 40? (a) 80 (b) 8 (c) 51 (d) 40
  7. 7.Which number is the odd one out: 90, 99, 5, 73? (a) 90 (b) 99 (c) 5 (d) 73
  8. 8.Which number is the odd one out: 34, 82, 58, 3? (a) 34 (b) 82 (c) 58 (d) 3
  9. 9.Which number is the odd one out: 63, 61, 19, 89? (a) 63 (b) 61 (c) 19 (d) 89
  10. 10.Which number is the odd one out: 92, 59, 41, 89? (a) 92 (b) 59 (c) 41 (d) 89
  11. 11.Which number is the odd one out: 86, 6, 78, 66? (a) 86 (b) 6 (c) 78 (d) 66
  12. 12.Which number is the odd one out: 25, 70, 49, 14? (a) 25 (b) 70 (c) 49 (d) 14
  13. 13.Which number is the odd one out: 9, 19, 47, 79? (a) 9 (b) 19 (c) 47 (d) 79
  14. 14.Which number is the odd one out: 20, 80, 84, 40? (a) 20 (b) 80 (c) 84 (d) 40
  15. 15.Which number is the odd one out: 83, 12, 67, 31? (a) 83 (b) 12 (c) 67 (d) 31
  16. 16.Which number is the odd one out: 12, 47, 51, 43? (a) 12 (b) 47 (c) 51 (d) 43
  17. 17.Which number is the odd one out: 10, 69, 87, 93? (a) 10 (b) 69 (c) 87 (d) 93
  18. 18.Which number is the odd one out: 92, 17, 13, 71? (a) 92 (b) 17 (c) 13 (d) 71
  19. 19.Which number is the odd one out: 19, 22, 11, 53? (a) 19 (b) 22 (c) 11 (d) 53
  20. 20.Which number is the odd one out: 54, 18, 47, 78? (a) 54 (b) 18 (c) 47 (d) 78
  21. 21.Which number is the odd one out: 97, 85, 31, 67? (a) 97 (b) 85 (c) 31 (d) 67
  22. 22.Which number is the odd one out: 41, 37, 91, 11? (a) 41 (b) 37 (c) 91 (d) 11
  23. 23.Which number is the odd one out: 79, 83, 68, 71? (a) 79 (b) 83 (c) 68 (d) 71
  24. 24.Which number is the odd one out: 48, 82, 32, 24? (a) 48 (b) 82 (c) 32 (d) 24
  25. 25.Which number is the odd one out: 43, 52, 11, 13? (a) 43 (b) 52 (c) 11 (d) 13
  26. 26.Which number is the odd one out: 29, 67, 20, 97? (a) 29 (b) 67 (c) 20 (d) 97
  27. 27.Which number is the odd one out: 25, 9, 90, 54? (a) 25 (b) 9 (c) 90 (d) 54
  28. 28.Which number is the odd one out: 54, 40, 72, 90? (a) 54 (b) 40 (c) 72 (d) 90
  29. 29.Which number is the odd one out: 47, 23, 89, 22? (a) 47 (b) 23 (c) 89 (d) 22
  30. 30.Which number is the odd one out: 3, 41, 45, 37? (a) 3 (b) 41 (c) 45 (d) 37
  31. 31.Which number is the odd one out: 46, 19, 61, 29? (a) 46 (b) 19 (c) 61 (d) 29
  32. 32.Which number is the odd one out: 3, 42, 23, 29? (a) 3 (b) 42 (c) 23 (d) 29
  33. 33.Which number is the odd one out: 6, 37, 41, 87? (a) 6 (b) 37 (c) 41 (d) 87
  34. 34.Which number is the odd one out: 24, 96, 60, 95? (a) 24 (b) 96 (c) 60 (d) 95
  35. 35.Which number is the odd one out: 59, 53, 96, 3? (a) 59 (b) 53 (c) 96 (d) 3
  36. 36.Which number is the odd one out: 67, 35, 89, 43? (a) 67 (b) 35 (c) 89 (d) 43
  37. 37.Which number is the odd one out: 26, 59, 17, 43? (a) 26 (b) 59 (c) 17 (d) 43
  38. 38.Which number is the odd one out: 41, 78, 97, 53? (a) 41 (b) 78 (c) 97 (d) 53
  39. 39.Which number is the odd one out: 73, 41, 93, 23? (a) 73 (b) 41 (c) 93 (d) 23
  40. 40.Which number is the odd one out: 84, 47, 67, 59? (a) 84 (b) 47 (c) 67 (d) 59

Answer key

  1. 85
  2. 78
  3. 6
  4. 66
  5. 35
  6. 51
  7. 90
  8. 3
  9. 63
  10. 92
  11. 86
  12. 25
  13. 9
  14. 84
  15. 12
  16. 12
  17. 10
  18. 92
  19. 22
  20. 47
  21. 85
  22. 91
  23. 68
  24. 82
  25. 52
  26. 20
  27. 25
  28. 40
  29. 22
  30. 45
  31. 46
  32. 42
  33. 6
  34. 95
  35. 96
  36. 35
  37. 26
  38. 78
  39. 93
  40. 84

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