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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 830 · 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: 91, 15, 95, 75? (a) 91 (b) 15 (c) 95 (d) 75
  2. 2.Which number is the odd one out: 71, 41, 6, 23? (a) 71 (b) 41 (c) 6 (d) 23
  3. 3.Which number is the odd one out: 2, 16, 17, 73? (a) 2 (b) 16 (c) 17 (d) 73
  4. 4.Which number is the odd one out: 67, 53, 11, 33? (a) 67 (b) 53 (c) 11 (d) 33
  5. 5.Which number is the odd one out: 97, 73, 59, 80? (a) 97 (b) 73 (c) 59 (d) 80
  6. 6.Which number is the odd one out: 11, 66, 41, 89? (a) 11 (b) 66 (c) 41 (d) 89
  7. 7.Which number is the odd one out: 13, 85, 97, 59? (a) 13 (b) 85 (c) 97 (d) 59
  8. 8.Which number is the odd one out: 16, 37, 32, 64? (a) 16 (b) 37 (c) 32 (d) 64
  9. 9.Which number is the odd one out: 23, 37, 8, 97? (a) 23 (b) 37 (c) 8 (d) 97
  10. 10.Which number is the odd one out: 10, 31, 73, 53? (a) 10 (b) 31 (c) 73 (d) 53
  11. 11.Which number is the odd one out: 66, 29, 23, 89? (a) 66 (b) 29 (c) 23 (d) 89
  12. 12.Which number is the odd one out: 40, 11, 5, 29? (a) 40 (b) 11 (c) 5 (d) 29
  13. 13.Which number is the odd one out: 71, 53, 65, 61? (a) 71 (b) 53 (c) 65 (d) 61
  14. 14.Which number is the odd one out: 9, 45, 25, 99? (a) 9 (b) 45 (c) 25 (d) 99
  15. 15.Which number is the odd one out: 77, 63, 6, 18? (a) 77 (b) 63 (c) 6 (d) 18
  16. 16.Which number is the odd one out: 31, 71, 89, 18? (a) 31 (b) 71 (c) 89 (d) 18
  17. 17.Which number is the odd one out: 97, 41, 21, 3? (a) 97 (b) 41 (c) 21 (d) 3
  18. 18.Which number is the odd one out: 75, 30, 67, 53? (a) 75 (b) 30 (c) 67 (d) 53
  19. 19.Which number is the odd one out: 59, 61, 11, 24? (a) 59 (b) 61 (c) 11 (d) 24
  20. 20.Which number is the odd one out: 88, 29, 83, 73? (a) 88 (b) 29 (c) 83 (d) 73
  21. 21.Which number is the odd one out: 61, 19, 83, 91? (a) 61 (b) 19 (c) 83 (d) 91
  22. 22.Which number is the odd one out: 17, 8, 43, 2? (a) 17 (b) 8 (c) 43 (d) 2
  23. 23.Which number is the odd one out: 13, 83, 69, 17? (a) 13 (b) 83 (c) 69 (d) 17
  24. 24.Which number is the odd one out: 61, 18, 89, 51? (a) 61 (b) 18 (c) 89 (d) 51
  25. 25.Which number is the odd one out: 77, 41, 11, 73? (a) 77 (b) 41 (c) 11 (d) 73
  26. 26.Which number is the odd one out: 93, 3, 19, 17? (a) 93 (b) 3 (c) 19 (d) 17
  27. 27.Which number is the odd one out: 37, 73, 88, 13? (a) 37 (b) 73 (c) 88 (d) 13
  28. 28.Which number is the odd one out: 34, 59, 37, 11? (a) 34 (b) 59 (c) 37 (d) 11
  29. 29.Which number is the odd one out: 71, 54, 6, 27? (a) 71 (b) 54 (c) 6 (d) 27
  30. 30.Which number is the odd one out: 47, 88, 8, 76? (a) 47 (b) 88 (c) 8 (d) 76
  31. 31.Which number is the odd one out: 16, 64, 21, 8? (a) 16 (b) 64 (c) 21 (d) 8
  32. 32.Which number is the odd one out: 8, 96, 22, 24? (a) 8 (b) 96 (c) 22 (d) 24
  33. 33.Which number is the odd one out: 27, 9, 80, 81? (a) 27 (b) 9 (c) 80 (d) 81
  34. 34.Which number is the odd one out: 4, 64, 16, 79? (a) 4 (b) 64 (c) 16 (d) 79
  35. 35.Which number is the odd one out: 9, 14, 98, 91? (a) 9 (b) 14 (c) 98 (d) 91
  36. 36.Which number is the odd one out: 29, 23, 60, 67? (a) 29 (b) 23 (c) 60 (d) 67
  37. 37.Which number is the odd one out: 20, 79, 80, 40? (a) 20 (b) 79 (c) 80 (d) 40
  38. 38.Which number is the odd one out: 98, 13, 77, 79? (a) 98 (b) 13 (c) 77 (d) 79
  39. 39.Which number is the odd one out: 79, 98, 53, 7? (a) 79 (b) 98 (c) 53 (d) 7
  40. 40.Which number is the odd one out: 11, 37, 53, 40? (a) 11 (b) 37 (c) 53 (d) 40

Answer key

  1. 91
  2. 6
  3. 16
  4. 33
  5. 80
  6. 66
  7. 85
  8. 37
  9. 8
  10. 10
  11. 66
  12. 40
  13. 65
  14. 25
  15. 77
  16. 18
  17. 21
  18. 30
  19. 24
  20. 88
  21. 91
  22. 8
  23. 69
  24. 18
  25. 77
  26. 93
  27. 88
  28. 34
  29. 71
  30. 47
  31. 21
  32. 22
  33. 80
  34. 79
  35. 9
  36. 60
  37. 79
  38. 98
  39. 98
  40. 40

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