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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 170 · 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: 95, 28, 35, 50? (a) 95 (b) 28 (c) 35 (d) 50
  2. 2.Which number is the odd one out: 31, 81, 3, 13? (a) 31 (b) 81 (c) 3 (d) 13
  3. 3.Which number is the odd one out: 52, 68, 79, 92? (a) 52 (b) 68 (c) 79 (d) 92
  4. 4.Which number is the odd one out: 59, 61, 60, 37? (a) 59 (b) 61 (c) 60 (d) 37
  5. 5.Which number is the odd one out: 16, 64, 8, 7? (a) 16 (b) 64 (c) 8 (d) 7
  6. 6.Which number is the odd one out: 76, 29, 23, 37? (a) 76 (b) 29 (c) 23 (d) 37
  7. 7.Which number is the odd one out: 67, 30, 73, 29? (a) 67 (b) 30 (c) 73 (d) 29
  8. 8.Which number is the odd one out: 20, 92, 95, 74? (a) 20 (b) 92 (c) 95 (d) 74
  9. 9.Which number is the odd one out: 89, 18, 79, 53? (a) 89 (b) 18 (c) 79 (d) 53
  10. 10.Which number is the odd one out: 71, 78, 43, 31? (a) 71 (b) 78 (c) 43 (d) 31
  11. 11.Which number is the odd one out: 80, 8, 40, 52? (a) 80 (b) 8 (c) 40 (d) 52
  12. 12.Which number is the odd one out: 15, 61, 13, 23? (a) 15 (b) 61 (c) 13 (d) 23
  13. 13.Which number is the odd one out: 83, 29, 23, 74? (a) 83 (b) 29 (c) 23 (d) 74
  14. 14.Which number is the odd one out: 11, 89, 19, 63? (a) 11 (b) 89 (c) 19 (d) 63
  15. 15.Which number is the odd one out: 47, 83, 91, 23? (a) 47 (b) 83 (c) 91 (d) 23
  16. 16.Which number is the odd one out: 31, 59, 52, 73? (a) 31 (b) 59 (c) 52 (d) 73
  17. 17.Which number is the odd one out: 11, 37, 79, 93? (a) 11 (b) 37 (c) 79 (d) 93
  18. 18.Which number is the odd one out: 23, 8, 64, 16? (a) 23 (b) 8 (c) 64 (d) 16
  19. 19.Which number is the odd one out: 31, 59, 99, 67? (a) 31 (b) 59 (c) 99 (d) 67
  20. 20.Which number is the odd one out: 50, 75, 15, 58? (a) 50 (b) 75 (c) 15 (d) 58
  21. 21.Which number is the odd one out: 40, 17, 59, 79? (a) 40 (b) 17 (c) 59 (d) 79
  22. 22.Which number is the odd one out: 67, 10, 61, 23? (a) 67 (b) 10 (c) 61 (d) 23
  23. 23.Which number is the odd one out: 28, 29, 89, 53? (a) 28 (b) 29 (c) 89 (d) 53
  24. 24.Which number is the odd one out: 13, 29, 24, 53? (a) 13 (b) 29 (c) 24 (d) 53
  25. 25.Which number is the odd one out: 73, 53, 15, 59? (a) 73 (b) 53 (c) 15 (d) 59
  26. 26.Which number is the odd one out: 23, 11, 63, 37? (a) 23 (b) 11 (c) 63 (d) 37
  27. 27.Which number is the odd one out: 6, 37, 41, 89? (a) 6 (b) 37 (c) 41 (d) 89
  28. 28.Which number is the odd one out: 8, 16, 82, 64? (a) 8 (b) 16 (c) 82 (d) 64
  29. 29.Which number is the odd one out: 24, 40, 60, 8? (a) 24 (b) 40 (c) 60 (d) 8
  30. 30.Which number is the odd one out: 8, 32, 30, 24? (a) 8 (b) 32 (c) 30 (d) 24
  31. 31.Which number is the odd one out: 32, 77, 91, 14? (a) 32 (b) 77 (c) 91 (d) 14
  32. 32.Which number is the odd one out: 8, 35, 64, 16? (a) 8 (b) 35 (c) 64 (d) 16
  33. 33.Which number is the odd one out: 4, 53, 37, 67? (a) 4 (b) 53 (c) 37 (d) 67
  34. 34.Which number is the odd one out: 92, 20, 5, 74? (a) 92 (b) 20 (c) 5 (d) 74
  35. 35.Which number is the odd one out: 61, 85, 53, 59? (a) 61 (b) 85 (c) 53 (d) 59
  36. 36.Which number is the odd one out: 2, 73, 89, 78? (a) 2 (b) 73 (c) 89 (d) 78
  37. 37.Which number is the odd one out: 12, 31, 47, 37? (a) 12 (b) 31 (c) 47 (d) 37
  38. 38.Which number is the odd one out: 61, 15, 29, 83? (a) 61 (b) 15 (c) 29 (d) 83
  39. 39.Which number is the odd one out: 53, 73, 83, 64? (a) 53 (b) 73 (c) 83 (d) 64
  40. 40.Which number is the odd one out: 11, 62, 53, 19? (a) 11 (b) 62 (c) 53 (d) 19

Answer key

  1. 28
  2. 81
  3. 79
  4. 60
  5. 7
  6. 76
  7. 30
  8. 95
  9. 18
  10. 78
  11. 52
  12. 15
  13. 74
  14. 63
  15. 91
  16. 52
  17. 93
  18. 23
  19. 99
  20. 58
  21. 40
  22. 10
  23. 28
  24. 24
  25. 15
  26. 63
  27. 6
  28. 82
  29. 60
  30. 30
  31. 32
  32. 35
  33. 4
  34. 5
  35. 85
  36. 78
  37. 12
  38. 15
  39. 64
  40. 62

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