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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 365 · 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: 22, 80, 88, 40? (a) 22 (b) 80 (c) 88 (d) 40
  2. 2.Which number is the odd one out: 10, 65, 50, 43? (a) 10 (b) 65 (c) 50 (d) 43
  3. 3.Which number is the odd one out: 85, 98, 91, 14? (a) 85 (b) 98 (c) 91 (d) 14
  4. 4.Which number is the odd one out: 76, 13, 89, 2? (a) 76 (b) 13 (c) 89 (d) 2
  5. 5.Which number is the odd one out: 95, 97, 19, 83? (a) 95 (b) 97 (c) 19 (d) 83
  6. 6.Which number is the odd one out: 40, 72, 88, 90? (a) 40 (b) 72 (c) 88 (d) 90
  7. 7.Which number is the odd one out: 76, 50, 52, 20? (a) 76 (b) 50 (c) 52 (d) 20
  8. 8.Which number is the odd one out: 37, 53, 19, 34? (a) 37 (b) 53 (c) 19 (d) 34
  9. 9.Which number is the odd one out: 86, 41, 22, 82? (a) 86 (b) 41 (c) 22 (d) 82
  10. 10.Which number is the odd one out: 80, 84, 8, 40? (a) 80 (b) 84 (c) 8 (d) 40
  11. 11.Which number is the odd one out: 24, 3, 12, 48? (a) 24 (b) 3 (c) 12 (d) 48
  12. 12.Which number is the odd one out: 77, 71, 11, 97? (a) 77 (b) 71 (c) 11 (d) 97
  13. 13.Which number is the odd one out: 47, 13, 12, 73? (a) 47 (b) 13 (c) 12 (d) 73
  14. 14.Which number is the odd one out: 7, 37, 41, 70? (a) 7 (b) 37 (c) 41 (d) 70
  15. 15.Which number is the odd one out: 97, 32, 73, 53? (a) 97 (b) 32 (c) 73 (d) 53
  16. 16.Which number is the odd one out: 19, 37, 53, 86? (a) 19 (b) 37 (c) 53 (d) 86
  17. 17.Which number is the odd one out: 68, 97, 37, 19? (a) 68 (b) 97 (c) 37 (d) 19
  18. 18.Which number is the odd one out: 73, 23, 62, 17? (a) 73 (b) 23 (c) 62 (d) 17
  19. 19.Which number is the odd one out: 22, 29, 71, 37? (a) 22 (b) 29 (c) 71 (d) 37
  20. 20.Which number is the odd one out: 73, 19, 6, 61? (a) 73 (b) 19 (c) 6 (d) 61
  21. 21.Which number is the odd one out: 19, 17, 32, 47? (a) 19 (b) 17 (c) 32 (d) 47
  22. 22.Which number is the odd one out: 71, 27, 11, 73? (a) 71 (b) 27 (c) 11 (d) 73
  23. 23.Which number is the odd one out: 22, 2, 73, 86? (a) 22 (b) 2 (c) 73 (d) 86
  24. 24.Which number is the odd one out: 53, 83, 23, 99? (a) 53 (b) 83 (c) 23 (d) 99
  25. 25.Which number is the odd one out: 63, 71, 59, 19? (a) 63 (b) 71 (c) 59 (d) 19
  26. 26.Which number is the odd one out: 13, 46, 43, 31? (a) 13 (b) 46 (c) 43 (d) 31
  27. 27.Which number is the odd one out: 74, 45, 27, 85? (a) 74 (b) 45 (c) 27 (d) 85
  28. 28.Which number is the odd one out: 11, 42, 79, 93? (a) 11 (b) 42 (c) 79 (d) 93
  29. 29.Which number is the odd one out: 27, 54, 66, 6? (a) 27 (b) 54 (c) 66 (d) 6
  30. 30.Which number is the odd one out: 19, 11, 48, 53? (a) 19 (b) 11 (c) 48 (d) 53
  31. 31.Which number is the odd one out: 97, 61, 10, 29? (a) 97 (b) 61 (c) 10 (d) 29
  32. 32.Which number is the odd one out: 4, 64, 26, 16? (a) 4 (b) 64 (c) 26 (d) 16
  33. 33.Which number is the odd one out: 52, 71, 2, 11? (a) 52 (b) 71 (c) 2 (d) 11
  34. 34.Which number is the odd one out: 59, 93, 87, 69? (a) 59 (b) 93 (c) 87 (d) 69
  35. 35.Which number is the odd one out: 40, 67, 37, 41? (a) 40 (b) 67 (c) 37 (d) 41
  36. 36.Which number is the odd one out: 19, 50, 41, 2? (a) 19 (b) 50 (c) 41 (d) 2
  37. 37.Which number is the odd one out: 86, 37, 43, 23? (a) 86 (b) 37 (c) 43 (d) 23
  38. 38.Which number is the odd one out: 31, 23, 29, 76? (a) 31 (b) 23 (c) 29 (d) 76
  39. 39.Which number is the odd one out: 24, 96, 84, 48? (a) 24 (b) 96 (c) 84 (d) 48
  40. 40.Which number is the odd one out: 71, 18, 97, 47? (a) 71 (b) 18 (c) 97 (d) 47

Answer key

  1. 22
  2. 43
  3. 85
  4. 76
  5. 95
  6. 90
  7. 50
  8. 34
  9. 41
  10. 84
  11. 3
  12. 77
  13. 12
  14. 70
  15. 32
  16. 86
  17. 68
  18. 62
  19. 22
  20. 6
  21. 32
  22. 27
  23. 73
  24. 99
  25. 63
  26. 46
  27. 74
  28. 42
  29. 27
  30. 48
  31. 10
  32. 26
  33. 52
  34. 59
  35. 40
  36. 50
  37. 86
  38. 76
  39. 84
  40. 18

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