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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 540 · 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: 21, 98, 14, 39? (a) 21 (b) 98 (c) 14 (d) 39
  2. 2.Which number is the odd one out: 89, 31, 19, 63? (a) 89 (b) 31 (c) 19 (d) 63
  3. 3.Which number is the odd one out: 69, 47, 73, 96? (a) 69 (b) 47 (c) 73 (d) 96
  4. 4.Which number is the odd one out: 43, 14, 67, 71? (a) 43 (b) 14 (c) 67 (d) 71
  5. 5.Which number is the odd one out: 67, 97, 50, 37? (a) 67 (b) 97 (c) 50 (d) 37
  6. 6.Which number is the odd one out: 73, 56, 41, 29? (a) 73 (b) 56 (c) 41 (d) 29
  7. 7.Which number is the odd one out: 34, 26, 49, 22? (a) 34 (b) 26 (c) 49 (d) 22
  8. 8.Which number is the odd one out: 48, 96, 23, 62? (a) 48 (b) 96 (c) 23 (d) 62
  9. 9.Which number is the odd one out: 59, 64, 4, 16? (a) 59 (b) 64 (c) 4 (d) 16
  10. 10.Which number is the odd one out: 83, 32, 43, 17? (a) 83 (b) 32 (c) 43 (d) 17
  11. 11.Which number is the odd one out: 79, 9, 59, 3? (a) 79 (b) 9 (c) 59 (d) 3
  12. 12.Which number is the odd one out: 47, 11, 59, 39? (a) 47 (b) 11 (c) 59 (d) 39
  13. 13.Which number is the odd one out: 31, 19, 55, 23? (a) 31 (b) 19 (c) 55 (d) 23
  14. 14.Which number is the odd one out: 19, 79, 90, 41? (a) 19 (b) 79 (c) 90 (d) 41
  15. 15.Which number is the odd one out: 91, 28, 77, 24? (a) 91 (b) 28 (c) 77 (d) 24
  16. 16.Which number is the odd one out: 79, 41, 53, 80? (a) 79 (b) 41 (c) 53 (d) 80
  17. 17.Which number is the odd one out: 68, 13, 41, 29? (a) 68 (b) 13 (c) 41 (d) 29
  18. 18.Which number is the odd one out: 69, 60, 12, 55? (a) 69 (b) 60 (c) 12 (d) 55
  19. 19.Which number is the odd one out: 29, 46, 43, 31? (a) 29 (b) 46 (c) 43 (d) 31
  20. 20.Which number is the odd one out: 53, 41, 11, 48? (a) 53 (b) 41 (c) 11 (d) 48
  21. 21.Which number is the odd one out: 54, 19, 73, 41? (a) 54 (b) 19 (c) 73 (d) 41
  22. 22.Which number is the odd one out: 64, 75, 92, 16? (a) 64 (b) 75 (c) 92 (d) 16
  23. 23.Which number is the odd one out: 16, 4, 64, 7? (a) 16 (b) 4 (c) 64 (d) 7
  24. 24.Which number is the odd one out: 43, 24, 96, 48? (a) 43 (b) 24 (c) 96 (d) 48
  25. 25.Which number is the odd one out: 67, 41, 92, 59? (a) 67 (b) 41 (c) 92 (d) 59
  26. 26.Which number is the odd one out: 71, 56, 31, 83? (a) 71 (b) 56 (c) 31 (d) 83
  27. 27.Which number is the odd one out: 24, 25, 88, 48? (a) 24 (b) 25 (c) 88 (d) 48
  28. 28.Which number is the odd one out: 18, 54, 25, 30? (a) 18 (b) 54 (c) 25 (d) 30
  29. 29.Which number is the odd one out: 51, 11, 31, 3? (a) 51 (b) 11 (c) 31 (d) 3
  30. 30.Which number is the odd one out: 71, 3, 60, 89? (a) 71 (b) 3 (c) 60 (d) 89
  31. 31.Which number is the odd one out: 24, 2, 96, 66? (a) 24 (b) 2 (c) 96 (d) 66
  32. 32.Which number is the odd one out: 21, 11, 53, 23? (a) 21 (b) 11 (c) 53 (d) 23
  33. 33.Which number is the odd one out: 71, 73, 54, 17? (a) 71 (b) 73 (c) 54 (d) 17
  34. 34.Which number is the odd one out: 66, 78, 91, 93? (a) 66 (b) 78 (c) 91 (d) 93
  35. 35.Which number is the odd one out: 61, 91, 41, 73? (a) 61 (b) 91 (c) 41 (d) 73
  36. 36.Which number is the odd one out: 67, 9, 13, 37? (a) 67 (b) 9 (c) 13 (d) 37
  37. 37.Which number is the odd one out: 32, 35, 62, 88? (a) 32 (b) 35 (c) 62 (d) 88
  38. 38.Which number is the odd one out: 16, 32, 9, 88? (a) 16 (b) 32 (c) 9 (d) 88
  39. 39.Which number is the odd one out: 5, 44, 20, 92? (a) 5 (b) 44 (c) 20 (d) 92
  40. 40.Which number is the odd one out: 29, 24, 48, 32? (a) 29 (b) 24 (c) 48 (d) 32

Answer key

  1. 39
  2. 63
  3. 96
  4. 14
  5. 50
  6. 56
  7. 49
  8. 23
  9. 59
  10. 32
  11. 9
  12. 39
  13. 55
  14. 90
  15. 24
  16. 80
  17. 68
  18. 55
  19. 46
  20. 48
  21. 54
  22. 75
  23. 7
  24. 43
  25. 92
  26. 56
  27. 25
  28. 25
  29. 51
  30. 60
  31. 2
  32. 21
  33. 54
  34. 91
  35. 91
  36. 9
  37. 35
  38. 9
  39. 5
  40. 29

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