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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 416 · 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: 32, 96, 12, 23? (a) 32 (b) 96 (c) 12 (d) 23
  2. 2.Which number is the odd one out: 7, 13, 42, 71? (a) 7 (b) 13 (c) 42 (d) 71
  3. 3.Which number is the odd one out: 15, 11, 13, 5? (a) 15 (b) 11 (c) 13 (d) 5
  4. 4.Which number is the odd one out: 6, 88, 24, 52? (a) 6 (b) 88 (c) 24 (d) 52
  5. 5.Which number is the odd one out: 53, 20, 31, 11? (a) 53 (b) 20 (c) 31 (d) 11
  6. 6.Which number is the odd one out: 43, 23, 73, 42? (a) 43 (b) 23 (c) 73 (d) 42
  7. 7.Which number is the odd one out: 33, 53, 61, 17? (a) 33 (b) 53 (c) 61 (d) 17
  8. 8.Which number is the odd one out: 40, 8, 48, 60? (a) 40 (b) 8 (c) 48 (d) 60
  9. 9.Which number is the odd one out: 15, 73, 61, 23? (a) 15 (b) 73 (c) 61 (d) 23
  10. 10.Which number is the odd one out: 75, 40, 24, 85? (a) 75 (b) 40 (c) 24 (d) 85
  11. 11.Which number is the odd one out: 47, 31, 4, 61? (a) 47 (b) 31 (c) 4 (d) 61
  12. 12.Which number is the odd one out: 81, 73, 53, 47? (a) 81 (b) 73 (c) 53 (d) 47
  13. 13.Which number is the odd one out: 30, 66, 65, 74? (a) 30 (b) 66 (c) 65 (d) 74
  14. 14.Which number is the odd one out: 2, 97, 67, 44? (a) 2 (b) 97 (c) 67 (d) 44
  15. 15.Which number is the odd one out: 67, 55, 47, 90? (a) 67 (b) 55 (c) 47 (d) 90
  16. 16.Which number is the odd one out: 29, 6, 67, 43? (a) 29 (b) 6 (c) 67 (d) 43
  17. 17.Which number is the odd one out: 13, 73, 37, 70? (a) 13 (b) 73 (c) 37 (d) 70
  18. 18.Which number is the odd one out: 53, 6, 43, 47? (a) 53 (b) 6 (c) 43 (d) 47
  19. 19.Which number is the odd one out: 43, 61, 67, 75? (a) 43 (b) 61 (c) 67 (d) 75
  20. 20.Which number is the odd one out: 67, 61, 43, 10? (a) 67 (b) 61 (c) 43 (d) 10
  21. 21.Which number is the odd one out: 9, 41, 3, 59? (a) 9 (b) 41 (c) 3 (d) 59
  22. 22.Which number is the odd one out: 71, 11, 31, 46? (a) 71 (b) 11 (c) 31 (d) 46
  23. 23.Which number is the odd one out: 81, 84, 27, 36? (a) 81 (b) 84 (c) 27 (d) 36
  24. 24.Which number is the odd one out: 59, 63, 83, 29? (a) 59 (b) 63 (c) 83 (d) 29
  25. 25.Which number is the odd one out: 96, 95, 24, 12? (a) 96 (b) 95 (c) 24 (d) 12
  26. 26.Which number is the odd one out: 97, 12, 59, 37? (a) 97 (b) 12 (c) 59 (d) 37
  27. 27.Which number is the odd one out: 3, 75, 31, 89? (a) 3 (b) 75 (c) 31 (d) 89
  28. 28.Which number is the odd one out: 19, 91, 67, 23? (a) 19 (b) 91 (c) 67 (d) 23
  29. 29.Which number is the odd one out: 72, 37, 19, 89? (a) 72 (b) 37 (c) 19 (d) 89
  30. 30.Which number is the odd one out: 95, 40, 17, 59? (a) 95 (b) 40 (c) 17 (d) 59
  31. 31.Which number is the odd one out: 61, 13, 78, 31? (a) 61 (b) 13 (c) 78 (d) 31
  32. 32.Which number is the odd one out: 52, 16, 64, 33? (a) 52 (b) 16 (c) 64 (d) 33
  33. 33.Which number is the odd one out: 94, 41, 31, 59? (a) 94 (b) 41 (c) 31 (d) 59
  34. 34.Which number is the odd one out: 90, 5, 29, 89? (a) 90 (b) 5 (c) 29 (d) 89
  35. 35.Which number is the odd one out: 14, 41, 19, 23? (a) 14 (b) 41 (c) 19 (d) 23
  36. 36.Which number is the odd one out: 61, 81, 9, 99? (a) 61 (b) 81 (c) 9 (d) 99
  37. 37.Which number is the odd one out: 23, 4, 53, 73? (a) 23 (b) 4 (c) 53 (d) 73
  38. 38.Which number is the odd one out: 20, 65, 56, 85? (a) 20 (b) 65 (c) 56 (d) 85
  39. 39.Which number is the odd one out: 4, 16, 32, 51? (a) 4 (b) 16 (c) 32 (d) 51
  40. 40.Which number is the odd one out: 8, 32, 25, 64? (a) 8 (b) 32 (c) 25 (d) 64

Answer key

  1. 23
  2. 42
  3. 15
  4. 6
  5. 20
  6. 42
  7. 33
  8. 60
  9. 15
  10. 24
  11. 4
  12. 81
  13. 65
  14. 44
  15. 90
  16. 6
  17. 70
  18. 6
  19. 75
  20. 10
  21. 9
  22. 46
  23. 84
  24. 63
  25. 95
  26. 12
  27. 75
  28. 91
  29. 72
  30. 40
  31. 78
  32. 33
  33. 94
  34. 90
  35. 14
  36. 61
  37. 4
  38. 56
  39. 51
  40. 25

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