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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 510 · 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: 43, 59, 79, 98? (a) 43 (b) 59 (c) 79 (d) 98
  2. 2.Which number is the odd one out: 29, 41, 3, 90? (a) 29 (b) 41 (c) 3 (d) 90
  3. 3.Which number is the odd one out: 96, 48, 76, 62? (a) 96 (b) 48 (c) 76 (d) 62
  4. 4.Which number is the odd one out: 54, 99, 42, 63? (a) 54 (b) 99 (c) 42 (d) 63
  5. 5.Which number is the odd one out: 41, 73, 23, 44? (a) 41 (b) 73 (c) 23 (d) 44
  6. 6.Which number is the odd one out: 19, 18, 47, 89? (a) 19 (b) 18 (c) 47 (d) 89
  7. 7.Which number is the odd one out: 73, 80, 53, 17? (a) 73 (b) 80 (c) 53 (d) 17
  8. 8.Which number is the odd one out: 54, 31, 23, 73? (a) 54 (b) 31 (c) 23 (d) 73
  9. 9.Which number is the odd one out: 52, 15, 75, 51? (a) 52 (b) 15 (c) 75 (d) 51
  10. 10.Which number is the odd one out: 88, 70, 65, 35? (a) 88 (b) 70 (c) 65 (d) 35
  11. 11.Which number is the odd one out: 54, 97, 47, 23? (a) 54 (b) 97 (c) 47 (d) 23
  12. 12.Which number is the odd one out: 41, 5, 59, 60? (a) 41 (b) 5 (c) 59 (d) 60
  13. 13.Which number is the odd one out: 13, 41, 9, 59? (a) 13 (b) 41 (c) 9 (d) 59
  14. 14.Which number is the odd one out: 43, 53, 73, 22? (a) 43 (b) 53 (c) 73 (d) 22
  15. 15.Which number is the odd one out: 22, 54, 72, 24? (a) 22 (b) 54 (c) 72 (d) 24
  16. 16.Which number is the odd one out: 23, 67, 47, 35? (a) 23 (b) 67 (c) 47 (d) 35
  17. 17.Which number is the odd one out: 95, 55, 85, 72? (a) 95 (b) 55 (c) 85 (d) 72
  18. 18.Which number is the odd one out: 4, 55, 64, 80? (a) 4 (b) 55 (c) 64 (d) 80
  19. 19.Which number is the odd one out: 11, 84, 23, 79? (a) 11 (b) 84 (c) 23 (d) 79
  20. 20.Which number is the odd one out: 21, 3, 73, 17? (a) 21 (b) 3 (c) 73 (d) 17
  21. 21.Which number is the odd one out: 41, 74, 13, 83? (a) 41 (b) 74 (c) 13 (d) 83
  22. 22.Which number is the odd one out: 3, 67, 41, 9? (a) 3 (b) 67 (c) 41 (d) 9
  23. 23.Which number is the odd one out: 30, 67, 71, 31? (a) 30 (b) 67 (c) 71 (d) 31
  24. 24.Which number is the odd one out: 42, 3, 19, 73? (a) 42 (b) 3 (c) 19 (d) 73
  25. 25.Which number is the odd one out: 29, 91, 17, 7? (a) 29 (b) 91 (c) 17 (d) 7
  26. 26.Which number is the odd one out: 5, 43, 70, 41? (a) 5 (b) 43 (c) 70 (d) 41
  27. 27.Which number is the odd one out: 17, 52, 67, 73? (a) 17 (b) 52 (c) 67 (d) 73
  28. 28.Which number is the odd one out: 19, 61, 2, 84? (a) 19 (b) 61 (c) 2 (d) 84
  29. 29.Which number is the odd one out: 89, 37, 19, 6? (a) 89 (b) 37 (c) 19 (d) 6
  30. 30.Which number is the odd one out: 17, 73, 44, 67? (a) 17 (b) 73 (c) 44 (d) 67
  31. 31.Which number is the odd one out: 81, 53, 71, 3? (a) 81 (b) 53 (c) 71 (d) 3
  32. 32.Which number is the odd one out: 79, 23, 74, 13? (a) 79 (b) 23 (c) 74 (d) 13
  33. 33.Which number is the odd one out: 84, 59, 53, 67? (a) 84 (b) 59 (c) 53 (d) 67
  34. 34.Which number is the odd one out: 32, 44, 70, 40? (a) 32 (b) 44 (c) 70 (d) 40
  35. 35.Which number is the odd one out: 27, 97, 73, 59? (a) 27 (b) 97 (c) 73 (d) 59
  36. 36.Which number is the odd one out: 23, 24, 39, 73? (a) 23 (b) 24 (c) 39 (d) 73
  37. 37.Which number is the odd one out: 67, 5, 97, 15? (a) 67 (b) 5 (c) 97 (d) 15
  38. 38.Which number is the odd one out: 7, 93, 42, 59? (a) 7 (b) 93 (c) 42 (d) 59
  39. 39.Which number is the odd one out: 19, 4, 29, 71? (a) 19 (b) 4 (c) 29 (d) 71
  40. 40.Which number is the odd one out: 11, 84, 2, 71? (a) 11 (b) 84 (c) 2 (d) 71

Answer key

  1. 98
  2. 90
  3. 62
  4. 42
  5. 44
  6. 18
  7. 80
  8. 54
  9. 52
  10. 88
  11. 54
  12. 60
  13. 9
  14. 22
  15. 22
  16. 35
  17. 72
  18. 55
  19. 84
  20. 21
  21. 74
  22. 9
  23. 30
  24. 42
  25. 91
  26. 70
  27. 52
  28. 84
  29. 6
  30. 44
  31. 81
  32. 74
  33. 84
  34. 70
  35. 27
  36. 24
  37. 15
  38. 42
  39. 4
  40. 84

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