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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 180 · 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: 14, 29, 43, 59? (a) 14 (b) 29 (c) 43 (d) 59
  2. 2.Which number is the odd one out: 61, 31, 3, 84? (a) 61 (b) 31 (c) 3 (d) 84
  3. 3.Which number is the odd one out: 86, 3, 94, 58? (a) 86 (b) 3 (c) 94 (d) 58
  4. 4.Which number is the odd one out: 5, 18, 54, 6? (a) 5 (b) 18 (c) 54 (d) 6
  5. 5.Which number is the odd one out: 4, 90, 18, 30? (a) 4 (b) 90 (c) 18 (d) 30
  6. 6.Which number is the odd one out: 53, 37, 13, 98? (a) 53 (b) 37 (c) 13 (d) 98
  7. 7.Which number is the odd one out: 16, 63, 64, 49? (a) 16 (b) 63 (c) 64 (d) 49
  8. 8.Which number is the odd one out: 81, 25, 9, 80? (a) 81 (b) 25 (c) 9 (d) 80
  9. 9.Which number is the odd one out: 17, 96, 24, 88? (a) 17 (b) 96 (c) 24 (d) 88
  10. 10.Which number is the odd one out: 13, 56, 89, 71? (a) 13 (b) 56 (c) 89 (d) 71
  11. 11.Which number is the odd one out: 8, 24, 17, 48? (a) 8 (b) 24 (c) 17 (d) 48
  12. 12.Which number is the odd one out: 69, 39, 57, 79? (a) 69 (b) 39 (c) 57 (d) 79
  13. 13.Which number is the odd one out: 89, 97, 18, 17? (a) 89 (b) 97 (c) 18 (d) 17
  14. 14.Which number is the odd one out: 38, 80, 88, 40? (a) 38 (b) 80 (c) 88 (d) 40
  15. 15.Which number is the odd one out: 48, 8, 92, 30? (a) 48 (b) 8 (c) 92 (d) 30
  16. 16.Which number is the odd one out: 59, 67, 31, 35? (a) 59 (b) 67 (c) 31 (d) 35
  17. 17.Which number is the odd one out: 18, 88, 72, 54? (a) 18 (b) 88 (c) 72 (d) 54
  18. 18.Which number is the odd one out: 42, 89, 37, 2? (a) 42 (b) 89 (c) 37 (d) 2
  19. 19.Which number is the odd one out: 19, 9, 89, 47? (a) 19 (b) 9 (c) 89 (d) 47
  20. 20.Which number is the odd one out: 23, 56, 97, 53? (a) 23 (b) 56 (c) 97 (d) 53
  21. 21.Which number is the odd one out: 83, 38, 13, 2? (a) 83 (b) 38 (c) 13 (d) 2
  22. 22.Which number is the odd one out: 15, 85, 95, 18? (a) 15 (b) 85 (c) 95 (d) 18
  23. 23.Which number is the odd one out: 79, 51, 71, 43? (a) 79 (b) 51 (c) 71 (d) 43
  24. 24.Which number is the odd one out: 53, 61, 29, 90? (a) 53 (b) 61 (c) 29 (d) 90
  25. 25.Which number is the odd one out: 81, 4, 56, 9? (a) 81 (b) 4 (c) 56 (d) 9
  26. 26.Which number is the odd one out: 61, 67, 10, 41? (a) 61 (b) 67 (c) 10 (d) 41
  27. 27.Which number is the odd one out: 61, 60, 73, 11? (a) 61 (b) 60 (c) 73 (d) 11
  28. 28.Which number is the odd one out: 73, 19, 83, 57? (a) 73 (b) 19 (c) 83 (d) 57
  29. 29.Which number is the odd one out: 73, 29, 28, 7? (a) 73 (b) 29 (c) 28 (d) 7
  30. 30.Which number is the odd one out: 84, 3, 83, 43? (a) 84 (b) 3 (c) 83 (d) 43
  31. 31.Which number is the odd one out: 6, 46, 96, 24? (a) 6 (b) 46 (c) 96 (d) 24
  32. 32.Which number is the odd one out: 79, 11, 48, 97? (a) 79 (b) 11 (c) 48 (d) 97
  33. 33.Which number is the odd one out: 7, 89, 43, 14? (a) 7 (b) 89 (c) 43 (d) 14
  34. 34.Which number is the odd one out: 85, 87, 55, 65? (a) 85 (b) 87 (c) 55 (d) 65
  35. 35.Which number is the odd one out: 54, 16, 64, 48? (a) 54 (b) 16 (c) 64 (d) 48
  36. 36.Which number is the odd one out: 53, 13, 36, 3? (a) 53 (b) 13 (c) 36 (d) 3
  37. 37.Which number is the odd one out: 79, 81, 27, 9? (a) 79 (b) 81 (c) 27 (d) 9
  38. 38.Which number is the odd one out: 49, 97, 11, 67? (a) 49 (b) 97 (c) 11 (d) 67
  39. 39.Which number is the odd one out: 90, 18, 27, 75? (a) 90 (b) 18 (c) 27 (d) 75
  40. 40.Which number is the odd one out: 48, 73, 37, 23? (a) 48 (b) 73 (c) 37 (d) 23

Answer key

  1. 14
  2. 84
  3. 3
  4. 5
  5. 4
  6. 98
  7. 63
  8. 80
  9. 17
  10. 56
  11. 17
  12. 79
  13. 18
  14. 38
  15. 30
  16. 35
  17. 88
  18. 42
  19. 9
  20. 56
  21. 38
  22. 18
  23. 51
  24. 90
  25. 56
  26. 10
  27. 60
  28. 57
  29. 28
  30. 84
  31. 46
  32. 48
  33. 14
  34. 87
  35. 54
  36. 36
  37. 79
  38. 49
  39. 75
  40. 48

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