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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 826 · 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: 92, 23, 52, 76? (a) 92 (b) 23 (c) 52 (d) 76
  2. 2.Which number is the odd one out: 6, 70, 66, 30? (a) 6 (b) 70 (c) 66 (d) 30
  3. 3.Which number is the odd one out: 81, 68, 4, 9? (a) 81 (b) 68 (c) 4 (d) 9
  4. 4.Which number is the odd one out: 81, 23, 19, 29? (a) 81 (b) 23 (c) 19 (d) 29
  5. 5.Which number is the odd one out: 37, 65, 19, 90? (a) 37 (b) 65 (c) 19 (d) 90
  6. 6.Which number is the odd one out: 74, 94, 22, 99? (a) 74 (b) 94 (c) 22 (d) 99
  7. 7.Which number is the odd one out: 43, 71, 89, 91? (a) 43 (b) 71 (c) 89 (d) 91
  8. 8.Which number is the odd one out: 96, 8, 77, 12? (a) 96 (b) 8 (c) 77 (d) 12
  9. 9.Which number is the odd one out: 35, 22, 58, 62? (a) 35 (b) 22 (c) 58 (d) 62
  10. 10.Which number is the odd one out: 20, 59, 71, 5? (a) 20 (b) 59 (c) 71 (d) 5
  11. 11.Which number is the odd one out: 29, 91, 19, 37? (a) 29 (b) 91 (c) 19 (d) 37
  12. 12.Which number is the odd one out: 89, 20, 23, 73? (a) 89 (b) 20 (c) 23 (d) 73
  13. 13.Which number is the odd one out: 88, 96, 4, 24? (a) 88 (b) 96 (c) 4 (d) 24
  14. 14.Which number is the odd one out: 97, 73, 83, 54? (a) 97 (b) 73 (c) 83 (d) 54
  15. 15.Which number is the odd one out: 80, 65, 43, 59? (a) 80 (b) 65 (c) 43 (d) 59
  16. 16.Which number is the odd one out: 78, 54, 63, 49? (a) 78 (b) 54 (c) 63 (d) 49
  17. 17.Which number is the odd one out: 23, 34, 41, 89? (a) 23 (b) 34 (c) 41 (d) 89
  18. 18.Which number is the odd one out: 19, 97, 63, 23? (a) 19 (b) 97 (c) 63 (d) 23
  19. 19.Which number is the odd one out: 17, 54, 33, 31? (a) 17 (b) 54 (c) 33 (d) 31
  20. 20.Which number is the odd one out: 37, 69, 73, 29? (a) 37 (b) 69 (c) 73 (d) 29
  21. 21.Which number is the odd one out: 69, 11, 31, 47? (a) 69 (b) 11 (c) 31 (d) 47
  22. 22.Which number is the odd one out: 28, 21, 12, 91? (a) 28 (b) 21 (c) 12 (d) 91
  23. 23.Which number is the odd one out: 67, 87, 47, 59? (a) 67 (b) 87 (c) 47 (d) 59
  24. 24.Which number is the odd one out: 64, 32, 16, 87? (a) 64 (b) 32 (c) 16 (d) 87
  25. 25.Which number is the odd one out: 92, 96, 37, 24? (a) 92 (b) 96 (c) 37 (d) 24
  26. 26.Which number is the odd one out: 98, 90, 21, 91? (a) 98 (b) 90 (c) 21 (d) 91
  27. 27.Which number is the odd one out: 14, 64, 4, 16? (a) 14 (b) 64 (c) 4 (d) 16
  28. 28.Which number is the odd one out: 7, 21, 54, 19? (a) 7 (b) 21 (c) 54 (d) 19
  29. 29.Which number is the odd one out: 66, 33, 19, 11? (a) 66 (b) 33 (c) 19 (d) 11
  30. 30.Which number is the odd one out: 2, 47, 90, 43? (a) 2 (b) 47 (c) 90 (d) 43
  31. 31.Which number is the odd one out: 35, 41, 19, 59? (a) 35 (b) 41 (c) 19 (d) 59
  32. 32.Which number is the odd one out: 75, 64, 25, 16? (a) 75 (b) 64 (c) 25 (d) 16
  33. 33.Which number is the odd one out: 31, 75, 37, 43? (a) 31 (b) 75 (c) 37 (d) 43
  34. 34.Which number is the odd one out: 11, 70, 71, 47? (a) 11 (b) 70 (c) 71 (d) 47
  35. 35.Which number is the odd one out: 9, 11, 41, 23? (a) 9 (b) 11 (c) 41 (d) 23
  36. 36.Which number is the odd one out: 2, 32, 59, 13? (a) 2 (b) 32 (c) 59 (d) 13
  37. 37.Which number is the odd one out: 6, 78, 99, 18? (a) 6 (b) 78 (c) 99 (d) 18
  38. 38.Which number is the odd one out: 11, 24, 48, 6? (a) 11 (b) 24 (c) 48 (d) 6
  39. 39.Which number is the odd one out: 24, 52, 7, 96? (a) 24 (b) 52 (c) 7 (d) 96
  40. 40.Which number is the odd one out: 18, 15, 75, 33? (a) 18 (b) 15 (c) 75 (d) 33

Answer key

  1. 23
  2. 70
  3. 68
  4. 81
  5. 90
  6. 99
  7. 91
  8. 77
  9. 35
  10. 20
  11. 91
  12. 20
  13. 4
  14. 54
  15. 80
  16. 49
  17. 34
  18. 63
  19. 54
  20. 69
  21. 69
  22. 12
  23. 87
  24. 87
  25. 37
  26. 90
  27. 14
  28. 54
  29. 66
  30. 90
  31. 35
  32. 75
  33. 75
  34. 70
  35. 9
  36. 32
  37. 99
  38. 11
  39. 7
  40. 18

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