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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 857 · 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, 17, 67, 23? (a) 70 (b) 17 (c) 67 (d) 23
  2. 2.Which number is the odd one out: 19, 58, 2, 31? (a) 19 (b) 58 (c) 2 (d) 31
  3. 3.Which number is the odd one out: 48, 72, 27, 96? (a) 48 (b) 72 (c) 27 (d) 96
  4. 4.Which number is the odd one out: 68, 76, 27, 86? (a) 68 (b) 76 (c) 27 (d) 86
  5. 5.Which number is the odd one out: 79, 73, 15, 31? (a) 79 (b) 73 (c) 15 (d) 31
  6. 6.Which number is the odd one out: 79, 51, 52, 3? (a) 79 (b) 51 (c) 52 (d) 3
  7. 7.Which number is the odd one out: 12, 47, 11, 89? (a) 12 (b) 47 (c) 11 (d) 89
  8. 8.Which number is the odd one out: 32, 65, 88, 8? (a) 32 (b) 65 (c) 88 (d) 8
  9. 9.Which number is the odd one out: 64, 49, 16, 7? (a) 64 (b) 49 (c) 16 (d) 7
  10. 10.Which number is the odd one out: 83, 53, 24, 41? (a) 83 (b) 53 (c) 24 (d) 41
  11. 11.Which number is the odd one out: 30, 80, 83, 24? (a) 30 (b) 80 (c) 83 (d) 24
  12. 12.Which number is the odd one out: 54, 64, 16, 88? (a) 54 (b) 64 (c) 16 (d) 88
  13. 13.Which number is the odd one out: 98, 43, 47, 2? (a) 98 (b) 43 (c) 47 (d) 2
  14. 14.Which number is the odd one out: 41, 13, 14, 11? (a) 41 (b) 13 (c) 14 (d) 11
  15. 15.Which number is the odd one out: 23, 47, 87, 29? (a) 23 (b) 47 (c) 87 (d) 29
  16. 16.Which number is the odd one out: 59, 36, 29, 19? (a) 59 (b) 36 (c) 29 (d) 19
  17. 17.Which number is the odd one out: 64, 17, 2, 31? (a) 64 (b) 17 (c) 2 (d) 31
  18. 18.Which number is the odd one out: 30, 95, 39, 6? (a) 30 (b) 95 (c) 39 (d) 6
  19. 19.Which number is the odd one out: 20, 18, 6, 90? (a) 20 (b) 18 (c) 6 (d) 90
  20. 20.Which number is the odd one out: 41, 19, 23, 62? (a) 41 (b) 19 (c) 23 (d) 62
  21. 21.Which number is the odd one out: 61, 67, 60, 59? (a) 61 (b) 67 (c) 60 (d) 59
  22. 22.Which number is the odd one out: 83, 17, 90, 31? (a) 83 (b) 17 (c) 90 (d) 31
  23. 23.Which number is the odd one out: 5, 61, 23, 10? (a) 5 (b) 61 (c) 23 (d) 10
  24. 24.Which number is the odd one out: 96, 24, 84, 49? (a) 96 (b) 24 (c) 84 (d) 49
  25. 25.Which number is the odd one out: 91, 36, 28, 63? (a) 91 (b) 36 (c) 28 (d) 63
  26. 26.Which number is the odd one out: 36, 96, 72, 48? (a) 36 (b) 96 (c) 72 (d) 48
  27. 27.Which number is the odd one out: 37, 23, 6, 31? (a) 37 (b) 23 (c) 6 (d) 31
  28. 28.Which number is the odd one out: 48, 24, 28, 88? (a) 48 (b) 24 (c) 28 (d) 88
  29. 29.Which number is the odd one out: 88, 40, 20, 32? (a) 88 (b) 40 (c) 20 (d) 32
  30. 30.Which number is the odd one out: 61, 37, 90, 31? (a) 61 (b) 37 (c) 90 (d) 31
  31. 31.Which number is the odd one out: 59, 67, 63, 73? (a) 59 (b) 67 (c) 63 (d) 73
  32. 32.Which number is the odd one out: 89, 62, 86, 58? (a) 89 (b) 62 (c) 86 (d) 58
  33. 33.Which number is the odd one out: 97, 2, 61, 94? (a) 97 (b) 2 (c) 61 (d) 94
  34. 34.Which number is the odd one out: 59, 64, 16, 88? (a) 59 (b) 64 (c) 16 (d) 88
  35. 35.Which number is the odd one out: 51, 83, 71, 41? (a) 51 (b) 83 (c) 71 (d) 41
  36. 36.Which number is the odd one out: 97, 31, 12, 37? (a) 97 (b) 31 (c) 12 (d) 37
  37. 37.Which number is the odd one out: 73, 89, 70, 19? (a) 73 (b) 89 (c) 70 (d) 19
  38. 38.Which number is the odd one out: 11, 23, 6, 13? (a) 11 (b) 23 (c) 6 (d) 13
  39. 39.Which number is the odd one out: 99, 41, 18, 54? (a) 99 (b) 41 (c) 18 (d) 54
  40. 40.Which number is the odd one out: 33, 37, 83, 97? (a) 33 (b) 37 (c) 83 (d) 97

Answer key

  1. 70
  2. 58
  3. 27
  4. 27
  5. 15
  6. 52
  7. 12
  8. 65
  9. 7
  10. 24
  11. 83
  12. 54
  13. 98
  14. 14
  15. 87
  16. 36
  17. 64
  18. 95
  19. 20
  20. 62
  21. 60
  22. 90
  23. 10
  24. 49
  25. 36
  26. 36
  27. 6
  28. 28
  29. 20
  30. 90
  31. 63
  32. 89
  33. 94
  34. 59
  35. 51
  36. 12
  37. 70
  38. 6
  39. 41
  40. 33

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