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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 737 · 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: 61, 41, 46, 17? (a) 61 (b) 41 (c) 46 (d) 17
  2. 2.Which number is the odd one out: 71, 97, 85, 17? (a) 71 (b) 97 (c) 85 (d) 17
  3. 3.Which number is the odd one out: 7, 2, 13, 42? (a) 7 (b) 2 (c) 13 (d) 42
  4. 4.Which number is the odd one out: 6, 48, 24, 17? (a) 6 (b) 48 (c) 24 (d) 17
  5. 5.Which number is the odd one out: 51, 3, 89, 19? (a) 51 (b) 3 (c) 89 (d) 19
  6. 6.Which number is the odd one out: 67, 9, 41, 97? (a) 67 (b) 9 (c) 41 (d) 97
  7. 7.Which number is the odd one out: 31, 29, 79, 16? (a) 31 (b) 29 (c) 79 (d) 16
  8. 8.Which number is the odd one out: 29, 43, 77, 71? (a) 29 (b) 43 (c) 77 (d) 71
  9. 9.Which number is the odd one out: 83, 43, 24, 37? (a) 83 (b) 43 (c) 24 (d) 37
  10. 10.Which number is the odd one out: 55, 90, 11, 97? (a) 55 (b) 90 (c) 11 (d) 97
  11. 11.Which number is the odd one out: 6, 47, 19, 23? (a) 6 (b) 47 (c) 19 (d) 23
  12. 12.Which number is the odd one out: 33, 20, 65, 93? (a) 33 (b) 20 (c) 65 (d) 93
  13. 13.Which number is the odd one out: 38, 41, 23, 17? (a) 38 (b) 41 (c) 23 (d) 17
  14. 14.Which number is the odd one out: 88, 9, 92, 64? (a) 88 (b) 9 (c) 92 (d) 64
  15. 15.Which number is the odd one out: 73, 27, 18, 54? (a) 73 (b) 27 (c) 18 (d) 54
  16. 16.Which number is the odd one out: 40, 71, 13, 67? (a) 40 (b) 71 (c) 13 (d) 67
  17. 17.Which number is the odd one out: 53, 17, 10, 31? (a) 53 (b) 17 (c) 10 (d) 31
  18. 18.Which number is the odd one out: 55, 65, 64, 25? (a) 55 (b) 65 (c) 64 (d) 25
  19. 19.Which number is the odd one out: 89, 79, 61, 81? (a) 89 (b) 79 (c) 61 (d) 81
  20. 20.Which number is the odd one out: 62, 17, 19, 11? (a) 62 (b) 17 (c) 19 (d) 11
  21. 21.Which number is the odd one out: 80, 8, 45, 32? (a) 80 (b) 8 (c) 45 (d) 32
  22. 22.Which number is the odd one out: 21, 91, 75, 35? (a) 21 (b) 91 (c) 75 (d) 35
  23. 23.Which number is the odd one out: 29, 41, 35, 23? (a) 29 (b) 41 (c) 35 (d) 23
  24. 24.Which number is the odd one out: 37, 48, 24, 78? (a) 37 (b) 48 (c) 24 (d) 78
  25. 25.Which number is the odd one out: 16, 64, 54, 96? (a) 16 (b) 64 (c) 54 (d) 96
  26. 26.Which number is the odd one out: 31, 73, 14, 13? (a) 31 (b) 73 (c) 14 (d) 13
  27. 27.Which number is the odd one out: 8, 11, 2, 47? (a) 8 (b) 11 (c) 2 (d) 47
  28. 28.Which number is the odd one out: 71, 43, 41, 14? (a) 71 (b) 43 (c) 41 (d) 14
  29. 29.Which number is the odd one out: 24, 87, 6, 48? (a) 24 (b) 87 (c) 6 (d) 48
  30. 30.Which number is the odd one out: 97, 71, 81, 23? (a) 97 (b) 71 (c) 81 (d) 23
  31. 31.Which number is the odd one out: 92, 2, 73, 17? (a) 92 (b) 2 (c) 73 (d) 17
  32. 32.Which number is the odd one out: 79, 47, 61, 52? (a) 79 (b) 47 (c) 61 (d) 52
  33. 33.Which number is the odd one out: 17, 59, 6, 11? (a) 17 (b) 59 (c) 6 (d) 11
  34. 34.Which number is the odd one out: 27, 18, 41, 11? (a) 27 (b) 18 (c) 41 (d) 11
  35. 35.Which number is the odd one out: 21, 47, 67, 41? (a) 21 (b) 47 (c) 67 (d) 41
  36. 36.Which number is the odd one out: 24, 48, 12, 73? (a) 24 (b) 48 (c) 12 (d) 73
  37. 37.Which number is the odd one out: 72, 59, 37, 2? (a) 72 (b) 59 (c) 37 (d) 2
  38. 38.Which number is the odd one out: 3, 23, 84, 83? (a) 3 (b) 23 (c) 84 (d) 83
  39. 39.Which number is the odd one out: 83, 80, 43, 5? (a) 83 (b) 80 (c) 43 (d) 5
  40. 40.Which number is the odd one out: 73, 64, 61, 53? (a) 73 (b) 64 (c) 61 (d) 53

Answer key

  1. 46
  2. 85
  3. 42
  4. 17
  5. 51
  6. 9
  7. 16
  8. 77
  9. 24
  10. 90
  11. 6
  12. 20
  13. 38
  14. 9
  15. 73
  16. 40
  17. 10
  18. 64
  19. 81
  20. 62
  21. 45
  22. 75
  23. 35
  24. 37
  25. 54
  26. 14
  27. 8
  28. 14
  29. 87
  30. 81
  31. 92
  32. 52
  33. 6
  34. 18
  35. 21
  36. 73
  37. 72
  38. 84
  39. 80
  40. 64

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