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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 186 · 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, 89, 97, 78? (a) 67 (b) 89 (c) 97 (d) 78
  2. 2.Which number is the odd one out: 22, 65, 15, 75? (a) 22 (b) 65 (c) 15 (d) 75
  3. 3.Which number is the odd one out: 83, 64, 71, 29? (a) 83 (b) 64 (c) 71 (d) 29
  4. 4.Which number is the odd one out: 11, 19, 43, 28? (a) 11 (b) 19 (c) 43 (d) 28
  5. 5.Which number is the odd one out: 69, 15, 65, 88? (a) 69 (b) 15 (c) 65 (d) 88
  6. 6.Which number is the odd one out: 86, 7, 77, 43? (a) 86 (b) 7 (c) 77 (d) 43
  7. 7.Which number is the odd one out: 51, 57, 3, 53? (a) 51 (b) 57 (c) 3 (d) 53
  8. 8.Which number is the odd one out: 4, 23, 2, 89? (a) 4 (b) 23 (c) 2 (d) 89
  9. 9.Which number is the odd one out: 23, 77, 70, 11? (a) 23 (b) 77 (c) 70 (d) 11
  10. 10.Which number is the odd one out: 19, 59, 47, 94? (a) 19 (b) 59 (c) 47 (d) 94
  11. 11.Which number is the odd one out: 4, 53, 59, 41? (a) 4 (b) 53 (c) 59 (d) 41
  12. 12.Which number is the odd one out: 24, 19, 83, 97? (a) 24 (b) 19 (c) 83 (d) 97
  13. 13.Which number is the odd one out: 95, 64, 80, 16? (a) 95 (b) 64 (c) 80 (d) 16
  14. 14.Which number is the odd one out: 85, 12, 15, 50? (a) 85 (b) 12 (c) 15 (d) 50
  15. 15.Which number is the odd one out: 14, 91, 10, 35? (a) 14 (b) 91 (c) 10 (d) 35
  16. 16.Which number is the odd one out: 71, 72, 13, 31? (a) 71 (b) 72 (c) 13 (d) 31
  17. 17.Which number is the odd one out: 97, 13, 85, 19? (a) 97 (b) 13 (c) 85 (d) 19
  18. 18.Which number is the odd one out: 25, 19, 73, 11? (a) 25 (b) 19 (c) 73 (d) 11
  19. 19.Which number is the odd one out: 73, 13, 80, 41? (a) 73 (b) 13 (c) 80 (d) 41
  20. 20.Which number is the odd one out: 64, 16, 4, 68? (a) 64 (b) 16 (c) 4 (d) 68
  21. 21.Which number is the odd one out: 2, 48, 79, 13? (a) 2 (b) 48 (c) 79 (d) 13
  22. 22.Which number is the odd one out: 83, 31, 35, 5? (a) 83 (b) 31 (c) 35 (d) 5
  23. 23.Which number is the odd one out: 41, 2, 53, 72? (a) 41 (b) 2 (c) 53 (d) 72
  24. 24.Which number is the odd one out: 43, 13, 41, 55? (a) 43 (b) 13 (c) 41 (d) 55
  25. 25.Which number is the odd one out: 13, 2, 98, 31? (a) 13 (b) 2 (c) 98 (d) 31
  26. 26.Which number is the odd one out: 32, 16, 55, 64? (a) 32 (b) 16 (c) 55 (d) 64
  27. 27.Which number is the odd one out: 74, 33, 81, 9? (a) 74 (b) 33 (c) 81 (d) 9
  28. 28.Which number is the odd one out: 17, 26, 13, 41? (a) 17 (b) 26 (c) 13 (d) 41
  29. 29.Which number is the odd one out: 60, 90, 76, 54? (a) 60 (b) 90 (c) 76 (d) 54
  30. 30.Which number is the odd one out: 19, 47, 83, 55? (a) 19 (b) 47 (c) 83 (d) 55
  31. 31.Which number is the odd one out: 13, 90, 29, 83? (a) 13 (b) 90 (c) 29 (d) 83
  32. 32.Which number is the odd one out: 67, 73, 99, 53? (a) 67 (b) 73 (c) 99 (d) 53
  33. 33.Which number is the odd one out: 77, 22, 26, 86? (a) 77 (b) 22 (c) 26 (d) 86
  34. 34.Which number is the odd one out: 89, 35, 53, 47? (a) 89 (b) 35 (c) 53 (d) 47
  35. 35.Which number is the odd one out: 93, 33, 15, 10? (a) 93 (b) 33 (c) 15 (d) 10
  36. 36.Which number is the odd one out: 61, 89, 31, 93? (a) 61 (b) 89 (c) 31 (d) 93
  37. 37.Which number is the odd one out: 11, 53, 74, 43? (a) 11 (b) 53 (c) 74 (d) 43
  38. 38.Which number is the odd one out: 89, 13, 73, 34? (a) 89 (b) 13 (c) 73 (d) 34
  39. 39.Which number is the odd one out: 43, 24, 97, 59? (a) 43 (b) 24 (c) 97 (d) 59
  40. 40.Which number is the odd one out: 59, 79, 17, 39? (a) 59 (b) 79 (c) 17 (d) 39

Answer key

  1. 78
  2. 22
  3. 64
  4. 28
  5. 88
  6. 86
  7. 53
  8. 4
  9. 70
  10. 94
  11. 4
  12. 24
  13. 95
  14. 12
  15. 10
  16. 72
  17. 85
  18. 25
  19. 80
  20. 68
  21. 48
  22. 35
  23. 72
  24. 55
  25. 98
  26. 55
  27. 74
  28. 26
  29. 76
  30. 55
  31. 90
  32. 99
  33. 77
  34. 35
  35. 10
  36. 93
  37. 74
  38. 34
  39. 24
  40. 39

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