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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 88 · 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: 48, 12, 24, 2? (a) 48 (b) 12 (c) 24 (d) 2
  2. 2.Which number is the odd one out: 50, 71, 19, 37? (a) 50 (b) 71 (c) 19 (d) 37
  3. 3.Which number is the odd one out: 77, 31, 13, 29? (a) 77 (b) 31 (c) 13 (d) 29
  4. 4.Which number is the odd one out: 44, 41, 19, 97? (a) 44 (b) 41 (c) 19 (d) 97
  5. 5.Which number is the odd one out: 65, 95, 8, 40? (a) 65 (b) 95 (c) 8 (d) 40
  6. 6.Which number is the odd one out: 3, 17, 73, 81? (a) 3 (b) 17 (c) 73 (d) 81
  7. 7.Which number is the odd one out: 42, 75, 55, 95? (a) 42 (b) 75 (c) 55 (d) 95
  8. 8.Which number is the odd one out: 67, 79, 36, 37? (a) 67 (b) 79 (c) 36 (d) 37
  9. 9.Which number is the odd one out: 56, 70, 40, 8? (a) 56 (b) 70 (c) 40 (d) 8
  10. 10.Which number is the odd one out: 60, 88, 48, 8? (a) 60 (b) 88 (c) 48 (d) 8
  11. 11.Which number is the odd one out: 30, 36, 50, 10? (a) 30 (b) 36 (c) 50 (d) 10
  12. 12.Which number is the odd one out: 71, 79, 43, 65? (a) 71 (b) 79 (c) 43 (d) 65
  13. 13.Which number is the odd one out: 47, 31, 53, 88? (a) 47 (b) 31 (c) 53 (d) 88
  14. 14.Which number is the odd one out: 47, 61, 23, 72? (a) 47 (b) 61 (c) 23 (d) 72
  15. 15.Which number is the odd one out: 16, 40, 80, 9? (a) 16 (b) 40 (c) 80 (d) 9
  16. 16.Which number is the odd one out: 40, 9, 25, 80? (a) 40 (b) 9 (c) 25 (d) 80
  17. 17.Which number is the odd one out: 59, 2, 23, 68? (a) 59 (b) 2 (c) 23 (d) 68
  18. 18.Which number is the odd one out: 83, 25, 47, 59? (a) 83 (b) 25 (c) 47 (d) 59
  19. 19.Which number is the odd one out: 13, 48, 3, 11? (a) 13 (b) 48 (c) 3 (d) 11
  20. 20.Which number is the odd one out: 13, 90, 47, 69? (a) 13 (b) 90 (c) 47 (d) 69
  21. 21.Which number is the odd one out: 99, 19, 27, 57? (a) 99 (b) 19 (c) 27 (d) 57
  22. 22.Which number is the odd one out: 52, 92, 62, 37? (a) 52 (b) 92 (c) 62 (d) 37
  23. 23.Which number is the odd one out: 43, 57, 71, 79? (a) 43 (b) 57 (c) 71 (d) 79
  24. 24.Which number is the odd one out: 41, 19, 89, 18? (a) 41 (b) 19 (c) 89 (d) 18
  25. 25.Which number is the odd one out: 79, 14, 3, 93? (a) 79 (b) 14 (c) 3 (d) 93
  26. 26.Which number is the odd one out: 55, 33, 2, 15? (a) 55 (b) 33 (c) 2 (d) 15
  27. 27.Which number is the odd one out: 83, 97, 61, 22? (a) 83 (b) 97 (c) 61 (d) 22
  28. 28.Which number is the odd one out: 77, 35, 70, 62? (a) 77 (b) 35 (c) 70 (d) 62
  29. 29.Which number is the odd one out: 23, 28, 11, 73? (a) 23 (b) 28 (c) 11 (d) 73
  30. 30.Which number is the odd one out: 59, 96, 71, 53? (a) 59 (b) 96 (c) 71 (d) 53
  31. 31.Which number is the odd one out: 69, 39, 33, 74? (a) 69 (b) 39 (c) 33 (d) 74
  32. 32.Which number is the odd one out: 67, 83, 75, 43? (a) 67 (b) 83 (c) 75 (d) 43
  33. 33.Which number is the odd one out: 80, 8, 70, 56? (a) 80 (b) 8 (c) 70 (d) 56
  34. 34.Which number is the odd one out: 47, 17, 71, 82? (a) 47 (b) 17 (c) 71 (d) 82
  35. 35.Which number is the odd one out: 71, 13, 43, 88? (a) 71 (b) 13 (c) 43 (d) 88
  36. 36.Which number is the odd one out: 63, 17, 37, 79? (a) 63 (b) 17 (c) 37 (d) 79
  37. 37.Which number is the odd one out: 23, 13, 98, 29? (a) 23 (b) 13 (c) 98 (d) 29
  38. 38.Which number is the odd one out: 47, 79, 18, 61? (a) 47 (b) 79 (c) 18 (d) 61
  39. 39.Which number is the odd one out: 71, 32, 2, 61? (a) 71 (b) 32 (c) 2 (d) 61
  40. 40.Which number is the odd one out: 47, 10, 71, 31? (a) 47 (b) 10 (c) 71 (d) 31

Answer key

  1. 2
  2. 50
  3. 77
  4. 44
  5. 8
  6. 81
  7. 42
  8. 36
  9. 70
  10. 60
  11. 36
  12. 65
  13. 88
  14. 72
  15. 9
  16. 9
  17. 68
  18. 25
  19. 48
  20. 90
  21. 19
  22. 37
  23. 57
  24. 18
  25. 14
  26. 2
  27. 22
  28. 62
  29. 28
  30. 96
  31. 74
  32. 75
  33. 70
  34. 82
  35. 88
  36. 63
  37. 98
  38. 18
  39. 32
  40. 10

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