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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 908 · 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: 72, 13, 73, 83? (a) 72 (b) 13 (c) 73 (d) 83
  2. 2.Which number is the odd one out: 30, 78, 35, 93? (a) 30 (b) 78 (c) 35 (d) 93
  3. 3.Which number is the odd one out: 93, 53, 30, 37? (a) 93 (b) 53 (c) 30 (d) 37
  4. 4.Which number is the odd one out: 17, 37, 14, 31? (a) 17 (b) 37 (c) 14 (d) 31
  5. 5.Which number is the odd one out: 61, 31, 12, 11? (a) 61 (b) 31 (c) 12 (d) 11
  6. 6.Which number is the odd one out: 90, 47, 13, 97? (a) 90 (b) 47 (c) 13 (d) 97
  7. 7.Which number is the odd one out: 94, 63, 22, 98? (a) 94 (b) 63 (c) 22 (d) 98
  8. 8.Which number is the odd one out: 17, 7, 84, 47? (a) 17 (b) 7 (c) 84 (d) 47
  9. 9.Which number is the odd one out: 13, 83, 72, 2? (a) 13 (b) 83 (c) 72 (d) 2
  10. 10.Which number is the odd one out: 89, 61, 78, 37? (a) 89 (b) 61 (c) 78 (d) 37
  11. 11.Which number is the odd one out: 42, 60, 5, 84? (a) 42 (b) 60 (c) 5 (d) 84
  12. 12.Which number is the odd one out: 48, 29, 96, 12? (a) 48 (b) 29 (c) 96 (d) 12
  13. 13.Which number is the odd one out: 37, 40, 73, 53? (a) 37 (b) 40 (c) 73 (d) 53
  14. 14.Which number is the odd one out: 5, 29, 15, 75? (a) 5 (b) 29 (c) 15 (d) 75
  15. 15.Which number is the odd one out: 37, 71, 97, 20? (a) 37 (b) 71 (c) 97 (d) 20
  16. 16.Which number is the odd one out: 71, 73, 29, 32? (a) 71 (b) 73 (c) 29 (d) 32
  17. 17.Which number is the odd one out: 64, 32, 92, 81? (a) 64 (b) 32 (c) 92 (d) 81
  18. 18.Which number is the odd one out: 17, 74, 13, 2? (a) 17 (b) 74 (c) 13 (d) 2
  19. 19.Which number is the odd one out: 89, 47, 87, 71? (a) 89 (b) 47 (c) 87 (d) 71
  20. 20.Which number is the odd one out: 83, 5, 37, 20? (a) 83 (b) 5 (c) 37 (d) 20
  21. 21.Which number is the odd one out: 79, 97, 39, 37? (a) 79 (b) 97 (c) 39 (d) 37
  22. 22.Which number is the odd one out: 43, 90, 23, 95? (a) 43 (b) 90 (c) 23 (d) 95
  23. 23.Which number is the odd one out: 36, 16, 54, 6? (a) 36 (b) 16 (c) 54 (d) 6
  24. 24.Which number is the odd one out: 29, 83, 89, 36? (a) 29 (b) 83 (c) 89 (d) 36
  25. 25.Which number is the odd one out: 19, 7, 37, 21? (a) 19 (b) 7 (c) 37 (d) 21
  26. 26.Which number is the odd one out: 29, 11, 28, 13? (a) 29 (b) 11 (c) 28 (d) 13
  27. 27.Which number is the odd one out: 54, 20, 18, 90? (a) 54 (b) 20 (c) 18 (d) 90
  28. 28.Which number is the odd one out: 80, 69, 15, 39? (a) 80 (b) 69 (c) 15 (d) 39
  29. 29.Which number is the odd one out: 17, 53, 83, 34? (a) 17 (b) 53 (c) 83 (d) 34
  30. 30.Which number is the odd one out: 95, 25, 90, 36? (a) 95 (b) 25 (c) 90 (d) 36
  31. 31.Which number is the odd one out: 48, 96, 35, 8? (a) 48 (b) 96 (c) 35 (d) 8
  32. 32.Which number is the odd one out: 29, 11, 54, 83? (a) 29 (b) 11 (c) 54 (d) 83
  33. 33.Which number is the odd one out: 97, 89, 62, 47? (a) 97 (b) 89 (c) 62 (d) 47
  34. 34.Which number is the odd one out: 9, 64, 81, 80? (a) 9 (b) 64 (c) 81 (d) 80
  35. 35.Which number is the odd one out: 25, 37, 23, 29? (a) 25 (b) 37 (c) 23 (d) 29
  36. 36.Which number is the odd one out: 83, 84, 29, 37? (a) 83 (b) 84 (c) 29 (d) 37
  37. 37.Which number is the odd one out: 37, 23, 47, 26? (a) 37 (b) 23 (c) 47 (d) 26
  38. 38.Which number is the odd one out: 83, 63, 31, 7? (a) 83 (b) 63 (c) 31 (d) 7
  39. 39.Which number is the odd one out: 72, 54, 48, 49? (a) 72 (b) 54 (c) 48 (d) 49
  40. 40.Which number is the odd one out: 30, 88, 72, 90? (a) 30 (b) 88 (c) 72 (d) 90

Answer key

  1. 72
  2. 35
  3. 30
  4. 14
  5. 12
  6. 90
  7. 63
  8. 84
  9. 72
  10. 78
  11. 5
  12. 29
  13. 40
  14. 29
  15. 20
  16. 32
  17. 81
  18. 74
  19. 87
  20. 20
  21. 39
  22. 90
  23. 16
  24. 36
  25. 21
  26. 28
  27. 20
  28. 80
  29. 34
  30. 36
  31. 35
  32. 54
  33. 62
  34. 80
  35. 25
  36. 84
  37. 26
  38. 63
  39. 49
  40. 88

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