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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 883 · 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: 27, 18, 54, 91? (a) 27 (b) 18 (c) 54 (d) 91
  2. 2.Which number is the odd one out: 61, 2, 47, 72? (a) 61 (b) 2 (c) 47 (d) 72
  3. 3.Which number is the odd one out: 16, 4, 84, 64? (a) 16 (b) 4 (c) 84 (d) 64
  4. 4.Which number is the odd one out: 6, 75, 30, 49? (a) 6 (b) 75 (c) 30 (d) 49
  5. 5.Which number is the odd one out: 20, 11, 23, 2? (a) 20 (b) 11 (c) 23 (d) 2
  6. 6.Which number is the odd one out: 10, 32, 76, 40? (a) 10 (b) 32 (c) 76 (d) 40
  7. 7.Which number is the odd one out: 11, 97, 61, 38? (a) 11 (b) 97 (c) 61 (d) 38
  8. 8.Which number is the odd one out: 18, 54, 44, 6? (a) 18 (b) 54 (c) 44 (d) 6
  9. 9.Which number is the odd one out: 22, 67, 13, 19? (a) 22 (b) 67 (c) 13 (d) 19
  10. 10.Which number is the odd one out: 13, 57, 73, 83? (a) 13 (b) 57 (c) 73 (d) 83
  11. 11.Which number is the odd one out: 69, 16, 33, 57? (a) 69 (b) 16 (c) 33 (d) 57
  12. 12.Which number is the odd one out: 67, 6, 73, 11? (a) 67 (b) 6 (c) 73 (d) 11
  13. 13.Which number is the odd one out: 8, 17, 73, 61? (a) 8 (b) 17 (c) 73 (d) 61
  14. 14.Which number is the odd one out: 48, 41, 24, 96? (a) 48 (b) 41 (c) 24 (d) 96
  15. 15.Which number is the odd one out: 94, 8, 99, 32? (a) 94 (b) 8 (c) 99 (d) 32
  16. 16.Which number is the odd one out: 70, 13, 59, 71? (a) 70 (b) 13 (c) 59 (d) 71
  17. 17.Which number is the odd one out: 24, 32, 4, 48? (a) 24 (b) 32 (c) 4 (d) 48
  18. 18.Which number is the odd one out: 19, 13, 28, 7? (a) 19 (b) 13 (c) 28 (d) 7
  19. 19.Which number is the odd one out: 19, 36, 13, 97? (a) 19 (b) 36 (c) 13 (d) 97
  20. 20.Which number is the odd one out: 58, 13, 43, 61? (a) 58 (b) 13 (c) 43 (d) 61
  21. 21.Which number is the odd one out: 14, 7, 98, 83? (a) 14 (b) 7 (c) 98 (d) 83
  22. 22.Which number is the odd one out: 90, 32, 88, 24? (a) 90 (b) 32 (c) 88 (d) 24
  23. 23.Which number is the odd one out: 80, 17, 61, 73? (a) 80 (b) 17 (c) 61 (d) 73
  24. 24.Which number is the odd one out: 31, 79, 87, 17? (a) 31 (b) 79 (c) 87 (d) 17
  25. 25.Which number is the odd one out: 13, 2, 89, 46? (a) 13 (b) 2 (c) 89 (d) 46
  26. 26.Which number is the odd one out: 12, 96, 10, 24? (a) 12 (b) 96 (c) 10 (d) 24
  27. 27.Which number is the odd one out: 90, 71, 41, 5? (a) 90 (b) 71 (c) 41 (d) 5
  28. 28.Which number is the odd one out: 47, 9, 53, 11? (a) 47 (b) 9 (c) 53 (d) 11
  29. 29.Which number is the odd one out: 67, 11, 36, 73? (a) 67 (b) 11 (c) 36 (d) 73
  30. 30.Which number is the odd one out: 3, 67, 97, 96? (a) 3 (b) 67 (c) 97 (d) 96
  31. 31.Which number is the odd one out: 9, 72, 48, 81? (a) 9 (b) 72 (c) 48 (d) 81
  32. 32.Which number is the odd one out: 61, 37, 31, 87? (a) 61 (b) 37 (c) 31 (d) 87
  33. 33.Which number is the odd one out: 47, 80, 73, 67? (a) 47 (b) 80 (c) 73 (d) 67
  34. 34.Which number is the odd one out: 39, 9, 27, 81? (a) 39 (b) 9 (c) 27 (d) 81
  35. 35.Which number is the odd one out: 56, 40, 91, 20? (a) 56 (b) 40 (c) 91 (d) 20
  36. 36.Which number is the odd one out: 29, 67, 68, 59? (a) 29 (b) 67 (c) 68 (d) 59
  37. 37.Which number is the odd one out: 44, 8, 40, 25? (a) 44 (b) 8 (c) 40 (d) 25
  38. 38.Which number is the odd one out: 62, 19, 47, 29? (a) 62 (b) 19 (c) 47 (d) 29
  39. 39.Which number is the odd one out: 70, 19, 59, 71? (a) 70 (b) 19 (c) 59 (d) 71
  40. 40.Which number is the odd one out: 89, 19, 23, 60? (a) 89 (b) 19 (c) 23 (d) 60

Answer key

  1. 91
  2. 72
  3. 84
  4. 49
  5. 20
  6. 10
  7. 38
  8. 44
  9. 22
  10. 57
  11. 16
  12. 6
  13. 8
  14. 41
  15. 99
  16. 70
  17. 4
  18. 28
  19. 36
  20. 58
  21. 83
  22. 90
  23. 80
  24. 87
  25. 46
  26. 10
  27. 90
  28. 9
  29. 36
  30. 96
  31. 48
  32. 87
  33. 80
  34. 39
  35. 91
  36. 68
  37. 25
  38. 62
  39. 70
  40. 60

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