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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 787 · 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: 79, 6, 59, 3? (a) 79 (b) 6 (c) 59 (d) 3
  2. 2.Which number is the odd one out: 47, 41, 78, 73? (a) 47 (b) 41 (c) 78 (d) 73
  3. 3.Which number is the odd one out: 4, 64, 16, 27? (a) 4 (b) 64 (c) 16 (d) 27
  4. 4.Which number is the odd one out: 9, 49, 63, 38? (a) 9 (b) 49 (c) 63 (d) 38
  5. 5.Which number is the odd one out: 41, 94, 11, 97? (a) 41 (b) 94 (c) 11 (d) 97
  6. 6.Which number is the odd one out: 43, 17, 72, 89? (a) 43 (b) 17 (c) 72 (d) 89
  7. 7.Which number is the odd one out: 25, 81, 9, 95? (a) 25 (b) 81 (c) 9 (d) 95
  8. 8.Which number is the odd one out: 31, 96, 48, 88? (a) 31 (b) 96 (c) 48 (d) 88
  9. 9.Which number is the odd one out: 71, 87, 29, 61? (a) 71 (b) 87 (c) 29 (d) 61
  10. 10.Which number is the odd one out: 52, 89, 53, 2? (a) 52 (b) 89 (c) 53 (d) 2
  11. 11.Which number is the odd one out: 59, 20, 19, 17? (a) 59 (b) 20 (c) 19 (d) 17
  12. 12.Which number is the odd one out: 71, 78, 31, 33? (a) 71 (b) 78 (c) 31 (d) 33
  13. 13.Which number is the odd one out: 15, 71, 79, 23? (a) 15 (b) 71 (c) 79 (d) 23
  14. 14.Which number is the odd one out: 6, 28, 66, 42? (a) 6 (b) 28 (c) 66 (d) 42
  15. 15.Which number is the odd one out: 77, 91, 21, 51? (a) 77 (b) 91 (c) 21 (d) 51
  16. 16.Which number is the odd one out: 70, 80, 88, 32? (a) 70 (b) 80 (c) 88 (d) 32
  17. 17.Which number is the odd one out: 17, 37, 38, 83? (a) 17 (b) 37 (c) 38 (d) 83
  18. 18.Which number is the odd one out: 36, 25, 63, 35? (a) 36 (b) 25 (c) 63 (d) 35
  19. 19.Which number is the odd one out: 28, 79, 13, 41? (a) 28 (b) 79 (c) 13 (d) 41
  20. 20.Which number is the odd one out: 29, 67, 25, 13? (a) 29 (b) 67 (c) 25 (d) 13
  21. 21.Which number is the odd one out: 25, 88, 96, 60? (a) 25 (b) 88 (c) 96 (d) 60
  22. 22.Which number is the odd one out: 37, 13, 72, 31? (a) 37 (b) 13 (c) 72 (d) 31
  23. 23.Which number is the odd one out: 29, 74, 83, 19? (a) 29 (b) 74 (c) 83 (d) 19
  24. 24.Which number is the odd one out: 71, 8, 32, 88? (a) 71 (b) 8 (c) 32 (d) 88
  25. 25.Which number is the odd one out: 17, 29, 59, 39? (a) 17 (b) 29 (c) 59 (d) 39
  26. 26.Which number is the odd one out: 69, 45, 90, 18? (a) 69 (b) 45 (c) 90 (d) 18
  27. 27.Which number is the odd one out: 18, 59, 43, 47? (a) 18 (b) 59 (c) 43 (d) 47
  28. 28.Which number is the odd one out: 76, 13, 67, 29? (a) 76 (b) 13 (c) 67 (d) 29
  29. 29.Which number is the odd one out: 54, 2, 71, 13? (a) 54 (b) 2 (c) 71 (d) 13
  30. 30.Which number is the odd one out: 98, 11, 17, 53? (a) 98 (b) 11 (c) 17 (d) 53
  31. 31.Which number is the odd one out: 53, 66, 23, 2? (a) 53 (b) 66 (c) 23 (d) 2
  32. 32.Which number is the odd one out: 37, 30, 73, 11? (a) 37 (b) 30 (c) 73 (d) 11
  33. 33.Which number is the odd one out: 19, 31, 30, 83? (a) 19 (b) 31 (c) 30 (d) 83
  34. 34.Which number is the odd one out: 17, 12, 83, 43? (a) 17 (b) 12 (c) 83 (d) 43
  35. 35.Which number is the odd one out: 83, 19, 13, 10? (a) 83 (b) 19 (c) 13 (d) 10
  36. 36.Which number is the odd one out: 19, 83, 7, 28? (a) 19 (b) 83 (c) 7 (d) 28
  37. 37.Which number is the odd one out: 88, 16, 64, 26? (a) 88 (b) 16 (c) 64 (d) 26
  38. 38.Which number is the odd one out: 47, 89, 99, 17? (a) 47 (b) 89 (c) 99 (d) 17
  39. 39.Which number is the odd one out: 83, 11, 64, 89? (a) 83 (b) 11 (c) 64 (d) 89
  40. 40.Which number is the odd one out: 35, 24, 6, 48? (a) 35 (b) 24 (c) 6 (d) 48

Answer key

  1. 6
  2. 78
  3. 27
  4. 38
  5. 94
  6. 72
  7. 95
  8. 31
  9. 87
  10. 52
  11. 20
  12. 78
  13. 15
  14. 28
  15. 51
  16. 70
  17. 38
  18. 36
  19. 28
  20. 25
  21. 25
  22. 72
  23. 74
  24. 71
  25. 39
  26. 69
  27. 18
  28. 76
  29. 54
  30. 98
  31. 66
  32. 30
  33. 30
  34. 12
  35. 10
  36. 28
  37. 26
  38. 99
  39. 64
  40. 35

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