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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 37 · 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: 55, 83, 71, 30? (a) 55 (b) 83 (c) 71 (d) 30
  2. 2.Which number is the odd one out: 28, 4, 81, 9? (a) 28 (b) 4 (c) 81 (d) 9
  3. 3.Which number is the odd one out: 25, 5, 9, 81? (a) 25 (b) 5 (c) 9 (d) 81
  4. 4.Which number is the odd one out: 19, 80, 53, 5? (a) 19 (b) 80 (c) 53 (d) 5
  5. 5.Which number is the odd one out: 53, 67, 29, 14? (a) 53 (b) 67 (c) 29 (d) 14
  6. 6.Which number is the odd one out: 73, 83, 23, 50? (a) 73 (b) 83 (c) 23 (d) 50
  7. 7.Which number is the odd one out: 76, 31, 89, 43? (a) 76 (b) 31 (c) 89 (d) 43
  8. 8.Which number is the odd one out: 97, 47, 87, 11? (a) 97 (b) 47 (c) 87 (d) 11
  9. 9.Which number is the odd one out: 99, 93, 81, 64? (a) 99 (b) 93 (c) 81 (d) 64
  10. 10.Which number is the odd one out: 79, 86, 47, 97? (a) 79 (b) 86 (c) 47 (d) 97
  11. 11.Which number is the odd one out: 15, 75, 98, 55? (a) 15 (b) 75 (c) 98 (d) 55
  12. 12.Which number is the odd one out: 43, 36, 17, 29? (a) 43 (b) 36 (c) 17 (d) 29
  13. 13.Which number is the odd one out: 52, 12, 78, 49? (a) 52 (b) 12 (c) 78 (d) 49
  14. 14.Which number is the odd one out: 75, 31, 11, 61? (a) 75 (b) 31 (c) 11 (d) 61
  15. 15.Which number is the odd one out: 57, 62, 16, 64? (a) 57 (b) 62 (c) 16 (d) 64
  16. 16.Which number is the odd one out: 78, 83, 39, 13? (a) 78 (b) 83 (c) 39 (d) 13
  17. 17.Which number is the odd one out: 14, 12, 28, 98? (a) 14 (b) 12 (c) 28 (d) 98
  18. 18.Which number is the odd one out: 48, 53, 17, 73? (a) 48 (b) 53 (c) 17 (d) 73
  19. 19.Which number is the odd one out: 40, 88, 76, 35? (a) 40 (b) 88 (c) 76 (d) 35
  20. 20.Which number is the odd one out: 23, 47, 40, 67? (a) 23 (b) 47 (c) 40 (d) 67
  21. 21.Which number is the odd one out: 47, 55, 19, 97? (a) 47 (b) 55 (c) 19 (d) 97
  22. 22.Which number is the odd one out: 79, 19, 12, 53? (a) 79 (b) 19 (c) 12 (d) 53
  23. 23.Which number is the odd one out: 83, 31, 71, 90? (a) 83 (b) 31 (c) 71 (d) 90
  24. 24.Which number is the odd one out: 97, 79, 17, 94? (a) 97 (b) 79 (c) 17 (d) 94
  25. 25.Which number is the odd one out: 76, 2, 13, 67? (a) 76 (b) 2 (c) 13 (d) 67
  26. 26.Which number is the odd one out: 11, 97, 36, 67? (a) 11 (b) 97 (c) 36 (d) 67
  27. 27.Which number is the odd one out: 37, 41, 51, 89? (a) 37 (b) 41 (c) 51 (d) 89
  28. 28.Which number is the odd one out: 75, 87, 29, 15? (a) 75 (b) 87 (c) 29 (d) 15
  29. 29.Which number is the odd one out: 93, 31, 3, 37? (a) 93 (b) 31 (c) 3 (d) 37
  30. 30.Which number is the odd one out: 58, 65, 37, 5? (a) 58 (b) 65 (c) 37 (d) 5
  31. 31.Which number is the odd one out: 13, 37, 43, 64? (a) 13 (b) 37 (c) 43 (d) 64
  32. 32.Which number is the odd one out: 86, 89, 59, 2? (a) 86 (b) 89 (c) 59 (d) 2
  33. 33.Which number is the odd one out: 56, 13, 19, 11? (a) 56 (b) 13 (c) 19 (d) 11
  34. 34.Which number is the odd one out: 73, 53, 33, 29? (a) 73 (b) 53 (c) 33 (d) 29
  35. 35.Which number is the odd one out: 40, 35, 32, 52? (a) 40 (b) 35 (c) 32 (d) 52
  36. 36.Which number is the odd one out: 13, 66, 11, 43? (a) 13 (b) 66 (c) 11 (d) 43
  37. 37.Which number is the odd one out: 88, 64, 16, 70? (a) 88 (b) 64 (c) 16 (d) 70
  38. 38.Which number is the odd one out: 64, 53, 41, 71? (a) 64 (b) 53 (c) 41 (d) 71
  39. 39.Which number is the odd one out: 92, 98, 14, 28? (a) 92 (b) 98 (c) 14 (d) 28
  40. 40.Which number is the odd one out: 31, 97, 88, 83? (a) 31 (b) 97 (c) 88 (d) 83

Answer key

  1. 30
  2. 28
  3. 5
  4. 80
  5. 14
  6. 50
  7. 76
  8. 87
  9. 64
  10. 86
  11. 98
  12. 36
  13. 49
  14. 75
  15. 57
  16. 78
  17. 12
  18. 48
  19. 35
  20. 40
  21. 55
  22. 12
  23. 90
  24. 94
  25. 76
  26. 36
  27. 51
  28. 29
  29. 93
  30. 58
  31. 64
  32. 86
  33. 56
  34. 33
  35. 35
  36. 66
  37. 70
  38. 64
  39. 92
  40. 88

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