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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 388 · 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: 83, 59, 76, 97? (a) 83 (b) 59 (c) 76 (d) 97
  2. 2.Which number is the odd one out: 31, 16, 67, 23? (a) 31 (b) 16 (c) 67 (d) 23
  3. 3.Which number is the odd one out: 30, 59, 23, 71? (a) 30 (b) 59 (c) 23 (d) 71
  4. 4.Which number is the odd one out: 43, 19, 79, 54? (a) 43 (b) 19 (c) 79 (d) 54
  5. 5.Which number is the odd one out: 50, 60, 30, 32? (a) 50 (b) 60 (c) 30 (d) 32
  6. 6.Which number is the odd one out: 31, 67, 38, 13? (a) 31 (b) 67 (c) 38 (d) 13
  7. 7.Which number is the odd one out: 70, 68, 52, 28? (a) 70 (b) 68 (c) 52 (d) 28
  8. 8.Which number is the odd one out: 89, 27, 54, 18? (a) 89 (b) 27 (c) 54 (d) 18
  9. 9.Which number is the odd one out: 31, 54, 29, 89? (a) 31 (b) 54 (c) 29 (d) 89
  10. 10.Which number is the odd one out: 47, 18, 90, 45? (a) 47 (b) 18 (c) 90 (d) 45
  11. 11.Which number is the odd one out: 2, 64, 4, 32? (a) 2 (b) 64 (c) 4 (d) 32
  12. 12.Which number is the odd one out: 13, 11, 51, 61? (a) 13 (b) 11 (c) 51 (d) 61
  13. 13.Which number is the odd one out: 47, 5, 50, 73? (a) 47 (b) 5 (c) 50 (d) 73
  14. 14.Which number is the odd one out: 15, 84, 85, 70? (a) 15 (b) 84 (c) 85 (d) 70
  15. 15.Which number is the odd one out: 35, 14, 97, 70? (a) 35 (b) 14 (c) 97 (d) 70
  16. 16.Which number is the odd one out: 70, 68, 60, 84? (a) 70 (b) 68 (c) 60 (d) 84
  17. 17.Which number is the odd one out: 87, 19, 3, 97? (a) 87 (b) 19 (c) 3 (d) 97
  18. 18.Which number is the odd one out: 59, 62, 71, 31? (a) 59 (b) 62 (c) 71 (d) 31
  19. 19.Which number is the odd one out: 67, 97, 52, 47? (a) 67 (b) 97 (c) 52 (d) 47
  20. 20.Which number is the odd one out: 83, 43, 36, 13? (a) 83 (b) 43 (c) 36 (d) 13
  21. 21.Which number is the odd one out: 61, 29, 97, 14? (a) 61 (b) 29 (c) 97 (d) 14
  22. 22.Which number is the odd one out: 19, 11, 17, 63? (a) 19 (b) 11 (c) 17 (d) 63
  23. 23.Which number is the odd one out: 75, 98, 39, 15? (a) 75 (b) 98 (c) 39 (d) 15
  24. 24.Which number is the odd one out: 79, 51, 87, 39? (a) 79 (b) 51 (c) 87 (d) 39
  25. 25.Which number is the odd one out: 43, 79, 11, 21? (a) 43 (b) 79 (c) 11 (d) 21
  26. 26.Which number is the odd one out: 43, 74, 67, 83? (a) 43 (b) 74 (c) 67 (d) 83
  27. 27.Which number is the odd one out: 97, 63, 7, 53? (a) 97 (b) 63 (c) 7 (d) 53
  28. 28.Which number is the odd one out: 26, 22, 19, 82? (a) 26 (b) 22 (c) 19 (d) 82
  29. 29.Which number is the odd one out: 79, 59, 8, 37? (a) 79 (b) 59 (c) 8 (d) 37
  30. 30.Which number is the odd one out: 46, 23, 89, 13? (a) 46 (b) 23 (c) 89 (d) 13
  31. 31.Which number is the odd one out: 71, 83, 6, 31? (a) 71 (b) 83 (c) 6 (d) 31
  32. 32.Which number is the odd one out: 84, 28, 71, 42? (a) 84 (b) 28 (c) 71 (d) 42
  33. 33.Which number is the odd one out: 53, 78, 83, 17? (a) 53 (b) 78 (c) 83 (d) 17
  34. 34.Which number is the odd one out: 59, 13, 56, 31? (a) 59 (b) 13 (c) 56 (d) 31
  35. 35.Which number is the odd one out: 16, 85, 65, 55? (a) 16 (b) 85 (c) 65 (d) 55
  36. 36.Which number is the odd one out: 23, 53, 56, 2? (a) 23 (b) 53 (c) 56 (d) 2
  37. 37.Which number is the odd one out: 31, 85, 73, 5? (a) 31 (b) 85 (c) 73 (d) 5
  38. 38.Which number is the odd one out: 41, 53, 4, 31? (a) 41 (b) 53 (c) 4 (d) 31
  39. 39.Which number is the odd one out: 72, 47, 67, 89? (a) 72 (b) 47 (c) 67 (d) 89
  40. 40.Which number is the odd one out: 72, 93, 19, 23? (a) 72 (b) 93 (c) 19 (d) 23

Answer key

  1. 76
  2. 16
  3. 30
  4. 54
  5. 32
  6. 38
  7. 70
  8. 89
  9. 54
  10. 47
  11. 2
  12. 51
  13. 50
  14. 84
  15. 97
  16. 70
  17. 87
  18. 62
  19. 52
  20. 36
  21. 14
  22. 63
  23. 98
  24. 79
  25. 21
  26. 74
  27. 63
  28. 19
  29. 8
  30. 46
  31. 6
  32. 71
  33. 78
  34. 56
  35. 16
  36. 56
  37. 85
  38. 4
  39. 72
  40. 72

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