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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 936 · 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: 41, 61, 11, 50? (a) 41 (b) 61 (c) 11 (d) 50
  2. 2.Which number is the odd one out: 58, 25, 62, 38? (a) 58 (b) 25 (c) 62 (d) 38
  3. 3.Which number is the odd one out: 29, 84, 19, 59? (a) 29 (b) 84 (c) 19 (d) 59
  4. 4.Which number is the odd one out: 59, 23, 98, 83? (a) 59 (b) 23 (c) 98 (d) 83
  5. 5.Which number is the odd one out: 42, 56, 96, 8? (a) 42 (b) 56 (c) 96 (d) 8
  6. 6.Which number is the odd one out: 4, 64, 16, 21? (a) 4 (b) 64 (c) 16 (d) 21
  7. 7.Which number is the odd one out: 97, 41, 61, 14? (a) 97 (b) 41 (c) 61 (d) 14
  8. 8.Which number is the odd one out: 16, 12, 4, 64? (a) 16 (b) 12 (c) 4 (d) 64
  9. 9.Which number is the odd one out: 30, 12, 20, 17? (a) 30 (b) 12 (c) 20 (d) 17
  10. 10.Which number is the odd one out: 16, 64, 81, 27? (a) 16 (b) 64 (c) 81 (d) 27
  11. 11.Which number is the odd one out: 76, 20, 58, 85? (a) 76 (b) 20 (c) 58 (d) 85
  12. 12.Which number is the odd one out: 8, 77, 84, 48? (a) 8 (b) 77 (c) 84 (d) 48
  13. 13.Which number is the odd one out: 21, 84, 97, 12? (a) 21 (b) 84 (c) 97 (d) 12
  14. 14.Which number is the odd one out: 47, 13, 31, 8? (a) 47 (b) 13 (c) 31 (d) 8
  15. 15.Which number is the odd one out: 83, 95, 97, 41? (a) 83 (b) 95 (c) 97 (d) 41
  16. 16.Which number is the odd one out: 3, 72, 13, 11? (a) 3 (b) 72 (c) 13 (d) 11
  17. 17.Which number is the odd one out: 18, 6, 28, 54? (a) 18 (b) 6 (c) 28 (d) 54
  18. 18.Which number is the odd one out: 41, 31, 23, 74? (a) 41 (b) 31 (c) 23 (d) 74
  19. 19.Which number is the odd one out: 4, 64, 41, 16? (a) 4 (b) 64 (c) 41 (d) 16
  20. 20.Which number is the odd one out: 96, 69, 48, 66? (a) 96 (b) 69 (c) 48 (d) 66
  21. 21.Which number is the odd one out: 35, 72, 90, 96? (a) 35 (b) 72 (c) 90 (d) 96
  22. 22.Which number is the odd one out: 43, 68, 19, 67? (a) 43 (b) 68 (c) 19 (d) 67
  23. 23.Which number is the odd one out: 3, 48, 54, 72? (a) 3 (b) 48 (c) 54 (d) 72
  24. 24.Which number is the odd one out: 65, 95, 10, 78? (a) 65 (b) 95 (c) 10 (d) 78
  25. 25.Which number is the odd one out: 43, 79, 63, 61? (a) 43 (b) 79 (c) 63 (d) 61
  26. 26.Which number is the odd one out: 72, 89, 19, 97? (a) 72 (b) 89 (c) 19 (d) 97
  27. 27.Which number is the odd one out: 49, 7, 71, 97? (a) 49 (b) 7 (c) 71 (d) 97
  28. 28.Which number is the odd one out: 32, 43, 11, 67? (a) 32 (b) 43 (c) 11 (d) 67
  29. 29.Which number is the odd one out: 88, 8, 40, 15? (a) 88 (b) 8 (c) 40 (d) 15
  30. 30.Which number is the odd one out: 89, 41, 53, 18? (a) 89 (b) 41 (c) 53 (d) 18
  31. 31.Which number is the odd one out: 88, 31, 29, 19? (a) 88 (b) 31 (c) 29 (d) 19
  32. 32.Which number is the odd one out: 59, 83, 3, 6? (a) 59 (b) 83 (c) 3 (d) 6
  33. 33.Which number is the odd one out: 35, 71, 59, 13? (a) 35 (b) 71 (c) 59 (d) 13
  34. 34.Which number is the odd one out: 43, 10, 79, 61? (a) 43 (b) 10 (c) 79 (d) 61
  35. 35.Which number is the odd one out: 55, 36, 65, 25? (a) 55 (b) 36 (c) 65 (d) 25
  36. 36.Which number is the odd one out: 12, 71, 17, 57? (a) 12 (b) 71 (c) 17 (d) 57
  37. 37.Which number is the odd one out: 72, 18, 47, 96? (a) 72 (b) 18 (c) 47 (d) 96
  38. 38.Which number is the odd one out: 51, 41, 36, 89? (a) 51 (b) 41 (c) 36 (d) 89
  39. 39.Which number is the odd one out: 43, 68, 89, 59? (a) 43 (b) 68 (c) 89 (d) 59
  40. 40.Which number is the odd one out: 7, 98, 19, 43? (a) 7 (b) 98 (c) 19 (d) 43

Answer key

  1. 50
  2. 25
  3. 84
  4. 98
  5. 42
  6. 21
  7. 14
  8. 12
  9. 17
  10. 27
  11. 85
  12. 77
  13. 97
  14. 8
  15. 95
  16. 72
  17. 28
  18. 74
  19. 41
  20. 69
  21. 35
  22. 68
  23. 3
  24. 78
  25. 63
  26. 72
  27. 49
  28. 32
  29. 15
  30. 18
  31. 88
  32. 6
  33. 35
  34. 10
  35. 36
  36. 12
  37. 47
  38. 36
  39. 68
  40. 98

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