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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 515 · 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: 67, 17, 13, 80? (a) 67 (b) 17 (c) 13 (d) 80
  2. 2.Which number is the odd one out: 68, 9, 76, 4? (a) 68 (b) 9 (c) 76 (d) 4
  3. 3.Which number is the odd one out: 23, 59, 37, 92? (a) 23 (b) 59 (c) 37 (d) 92
  4. 4.Which number is the odd one out: 63, 13, 61, 97? (a) 63 (b) 13 (c) 61 (d) 97
  5. 5.Which number is the odd one out: 20, 37, 53, 17? (a) 20 (b) 37 (c) 53 (d) 17
  6. 6.Which number is the odd one out: 64, 16, 57, 4? (a) 64 (b) 16 (c) 57 (d) 4
  7. 7.Which number is the odd one out: 18, 88, 8, 96? (a) 18 (b) 88 (c) 8 (d) 96
  8. 8.Which number is the odd one out: 70, 48, 24, 32? (a) 70 (b) 48 (c) 24 (d) 32
  9. 9.Which number is the odd one out: 24, 41, 47, 37? (a) 24 (b) 41 (c) 47 (d) 37
  10. 10.Which number is the odd one out: 5, 12, 84, 70? (a) 5 (b) 12 (c) 84 (d) 70
  11. 11.Which number is the odd one out: 42, 93, 6, 77? (a) 42 (b) 93 (c) 6 (d) 77
  12. 12.Which number is the odd one out: 12, 84, 66, 21? (a) 12 (b) 84 (c) 66 (d) 21
  13. 13.Which number is the odd one out: 55, 91, 18, 35? (a) 55 (b) 91 (c) 18 (d) 35
  14. 14.Which number is the odd one out: 47, 22, 59, 53? (a) 47 (b) 22 (c) 59 (d) 53
  15. 15.Which number is the odd one out: 29, 34, 37, 59? (a) 29 (b) 34 (c) 37 (d) 59
  16. 16.Which number is the odd one out: 31, 17, 29, 48? (a) 31 (b) 17 (c) 29 (d) 48
  17. 17.Which number is the odd one out: 10, 81, 75, 50? (a) 10 (b) 81 (c) 75 (d) 50
  18. 18.Which number is the odd one out: 79, 14, 43, 31? (a) 79 (b) 14 (c) 43 (d) 31
  19. 19.Which number is the odd one out: 98, 23, 17, 7? (a) 98 (b) 23 (c) 17 (d) 7
  20. 20.Which number is the odd one out: 49, 91, 9, 81? (a) 49 (b) 91 (c) 9 (d) 81
  21. 21.Which number is the odd one out: 32, 61, 23, 71? (a) 32 (b) 61 (c) 23 (d) 71
  22. 22.Which number is the odd one out: 50, 85, 51, 10? (a) 50 (b) 85 (c) 51 (d) 10
  23. 23.Which number is the odd one out: 43, 33, 11, 48? (a) 43 (b) 33 (c) 11 (d) 48
  24. 24.Which number is the odd one out: 6, 12, 60, 95? (a) 6 (b) 12 (c) 60 (d) 95
  25. 25.Which number is the odd one out: 41, 17, 81, 13? (a) 41 (b) 17 (c) 81 (d) 13
  26. 26.Which number is the odd one out: 31, 36, 19, 17? (a) 31 (b) 36 (c) 19 (d) 17
  27. 27.Which number is the odd one out: 2, 53, 98, 67? (a) 2 (b) 53 (c) 98 (d) 67
  28. 28.Which number is the odd one out: 63, 84, 27, 18? (a) 63 (b) 84 (c) 27 (d) 18
  29. 29.Which number is the odd one out: 55, 29, 31, 83? (a) 55 (b) 29 (c) 31 (d) 83
  30. 30.Which number is the odd one out: 18, 67, 89, 59? (a) 18 (b) 67 (c) 89 (d) 59
  31. 31.Which number is the odd one out: 59, 79, 5, 20? (a) 59 (b) 79 (c) 5 (d) 20
  32. 32.Which number is the odd one out: 83, 97, 79, 26? (a) 83 (b) 97 (c) 79 (d) 26
  33. 33.Which number is the odd one out: 90, 97, 59, 13? (a) 90 (b) 97 (c) 59 (d) 13
  34. 34.Which number is the odd one out: 89, 83, 56, 2? (a) 89 (b) 83 (c) 56 (d) 2
  35. 35.Which number is the odd one out: 59, 43, 54, 13? (a) 59 (b) 43 (c) 54 (d) 13
  36. 36.Which number is the odd one out: 42, 71, 59, 3? (a) 42 (b) 71 (c) 59 (d) 3
  37. 37.Which number is the odd one out: 31, 61, 66, 23? (a) 31 (b) 61 (c) 66 (d) 23
  38. 38.Which number is the odd one out: 51, 48, 66, 24? (a) 51 (b) 48 (c) 66 (d) 24
  39. 39.Which number is the odd one out: 90, 29, 37, 17? (a) 90 (b) 29 (c) 37 (d) 17
  40. 40.Which number is the odd one out: 21, 77, 28, 12? (a) 21 (b) 77 (c) 28 (d) 12

Answer key

  1. 80
  2. 9
  3. 92
  4. 63
  5. 20
  6. 57
  7. 18
  8. 70
  9. 24
  10. 5
  11. 77
  12. 21
  13. 18
  14. 22
  15. 34
  16. 48
  17. 81
  18. 14
  19. 98
  20. 91
  21. 32
  22. 51
  23. 48
  24. 95
  25. 81
  26. 36
  27. 98
  28. 84
  29. 55
  30. 18
  31. 20
  32. 26
  33. 90
  34. 56
  35. 54
  36. 42
  37. 66
  38. 51
  39. 90
  40. 12

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