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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 802 · 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: 9, 35, 81, 25? (a) 9 (b) 35 (c) 81 (d) 25
  2. 2.Which number is the odd one out: 71, 59, 47, 86? (a) 71 (b) 59 (c) 47 (d) 86
  3. 3.Which number is the odd one out: 79, 97, 61, 16? (a) 79 (b) 97 (c) 61 (d) 16
  4. 4.Which number is the odd one out: 97, 33, 12, 37? (a) 97 (b) 33 (c) 12 (d) 37
  5. 5.Which number is the odd one out: 41, 73, 94, 97? (a) 41 (b) 73 (c) 94 (d) 97
  6. 6.Which number is the odd one out: 8, 3, 56, 98? (a) 8 (b) 3 (c) 56 (d) 98
  7. 7.Which number is the odd one out: 41, 29, 3, 96? (a) 41 (b) 29 (c) 3 (d) 96
  8. 8.Which number is the odd one out: 54, 27, 19, 18? (a) 54 (b) 27 (c) 19 (d) 18
  9. 9.Which number is the odd one out: 24, 15, 50, 95? (a) 24 (b) 15 (c) 50 (d) 95
  10. 10.Which number is the odd one out: 55, 6, 96, 48? (a) 55 (b) 6 (c) 96 (d) 48
  11. 11.Which number is the odd one out: 11, 79, 2, 58? (a) 11 (b) 79 (c) 2 (d) 58
  12. 12.Which number is the odd one out: 52, 13, 79, 41? (a) 52 (b) 13 (c) 79 (d) 41
  13. 13.Which number is the odd one out: 23, 79, 11, 70? (a) 23 (b) 79 (c) 11 (d) 70
  14. 14.Which number is the odd one out: 63, 70, 35, 18? (a) 63 (b) 70 (c) 35 (d) 18
  15. 15.Which number is the odd one out: 29, 83, 42, 61? (a) 29 (b) 83 (c) 42 (d) 61
  16. 16.Which number is the odd one out: 71, 41, 47, 69? (a) 71 (b) 41 (c) 47 (d) 69
  17. 17.Which number is the odd one out: 53, 42, 89, 37? (a) 53 (b) 42 (c) 89 (d) 37
  18. 18.Which number is the odd one out: 79, 17, 45, 59? (a) 79 (b) 17 (c) 45 (d) 59
  19. 19.Which number is the odd one out: 31, 84, 83, 23? (a) 31 (b) 84 (c) 83 (d) 23
  20. 20.Which number is the odd one out: 23, 71, 83, 16? (a) 23 (b) 71 (c) 83 (d) 16
  21. 21.Which number is the odd one out: 43, 41, 75, 89? (a) 43 (b) 41 (c) 75 (d) 89
  22. 22.Which number is the odd one out: 12, 73, 71, 19? (a) 12 (b) 73 (c) 71 (d) 19
  23. 23.Which number is the odd one out: 83, 41, 54, 71? (a) 83 (b) 41 (c) 54 (d) 71
  24. 24.Which number is the odd one out: 24, 74, 12, 96? (a) 24 (b) 74 (c) 12 (d) 96
  25. 25.Which number is the odd one out: 59, 31, 13, 10? (a) 59 (b) 31 (c) 13 (d) 10
  26. 26.Which number is the odd one out: 89, 87, 11, 61? (a) 89 (b) 87 (c) 11 (d) 61
  27. 27.Which number is the odd one out: 98, 16, 84, 42? (a) 98 (b) 16 (c) 84 (d) 42
  28. 28.Which number is the odd one out: 38, 25, 8, 16? (a) 38 (b) 25 (c) 8 (d) 16
  29. 29.Which number is the odd one out: 91, 48, 24, 96? (a) 91 (b) 48 (c) 24 (d) 96
  30. 30.Which number is the odd one out: 71, 7, 98, 2? (a) 71 (b) 7 (c) 98 (d) 2
  31. 31.Which number is the odd one out: 17, 24, 73, 83? (a) 17 (b) 24 (c) 73 (d) 83
  32. 32.Which number is the odd one out: 37, 15, 83, 23? (a) 37 (b) 15 (c) 83 (d) 23
  33. 33.Which number is the odd one out: 84, 17, 89, 97? (a) 84 (b) 17 (c) 89 (d) 97
  34. 34.Which number is the odd one out: 23, 45, 37, 19? (a) 23 (b) 45 (c) 37 (d) 19
  35. 35.Which number is the odd one out: 65, 23, 43, 19? (a) 65 (b) 23 (c) 43 (d) 19
  36. 36.Which number is the odd one out: 48, 53, 24, 8? (a) 48 (b) 53 (c) 24 (d) 8
  37. 37.Which number is the odd one out: 36, 9, 99, 12? (a) 36 (b) 9 (c) 99 (d) 12
  38. 38.Which number is the odd one out: 83, 2, 37, 24? (a) 83 (b) 2 (c) 37 (d) 24
  39. 39.Which number is the odd one out: 2, 98, 13, 23? (a) 2 (b) 98 (c) 13 (d) 23
  40. 40.Which number is the odd one out: 41, 87, 59, 36? (a) 41 (b) 87 (c) 59 (d) 36

Answer key

  1. 35
  2. 86
  3. 16
  4. 12
  5. 94
  6. 3
  7. 96
  8. 19
  9. 24
  10. 55
  11. 58
  12. 52
  13. 70
  14. 18
  15. 42
  16. 69
  17. 42
  18. 45
  19. 84
  20. 16
  21. 75
  22. 12
  23. 54
  24. 74
  25. 10
  26. 87
  27. 16
  28. 25
  29. 91
  30. 98
  31. 24
  32. 15
  33. 84
  34. 45
  35. 65
  36. 53
  37. 12
  38. 24
  39. 98
  40. 36

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