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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 117 · 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: 25, 95, 15, 9? (a) 25 (b) 95 (c) 15 (d) 9
  2. 2.Which number is the odd one out: 27, 13, 59, 3? (a) 27 (b) 13 (c) 59 (d) 3
  3. 3.Which number is the odd one out: 47, 17, 60, 73? (a) 47 (b) 17 (c) 60 (d) 73
  4. 4.Which number is the odd one out: 97, 43, 73, 78? (a) 97 (b) 43 (c) 73 (d) 78
  5. 5.Which number is the odd one out: 11, 83, 41, 42? (a) 11 (b) 83 (c) 41 (d) 42
  6. 6.Which number is the odd one out: 61, 11, 31, 90? (a) 61 (b) 11 (c) 31 (d) 90
  7. 7.Which number is the odd one out: 59, 51, 17, 3? (a) 59 (b) 51 (c) 17 (d) 3
  8. 8.Which number is the odd one out: 47, 13, 34, 97? (a) 47 (b) 13 (c) 34 (d) 97
  9. 9.Which number is the odd one out: 37, 7, 98, 13? (a) 37 (b) 7 (c) 98 (d) 13
  10. 10.Which number is the odd one out: 72, 11, 19, 41? (a) 72 (b) 11 (c) 19 (d) 41
  11. 11.Which number is the odd one out: 24, 30, 56, 28? (a) 24 (b) 30 (c) 56 (d) 28
  12. 12.Which number is the odd one out: 32, 96, 26, 12? (a) 32 (b) 96 (c) 26 (d) 12
  13. 13.Which number is the odd one out: 44, 31, 37, 67? (a) 44 (b) 31 (c) 37 (d) 67
  14. 14.Which number is the odd one out: 48, 83, 79, 29? (a) 48 (b) 83 (c) 79 (d) 29
  15. 15.Which number is the odd one out: 11, 67, 31, 22? (a) 11 (b) 67 (c) 31 (d) 22
  16. 16.Which number is the odd one out: 40, 31, 67, 41? (a) 40 (b) 31 (c) 67 (d) 41
  17. 17.Which number is the odd one out: 17, 41, 24, 31? (a) 17 (b) 41 (c) 24 (d) 31
  18. 18.Which number is the odd one out: 53, 70, 3, 21? (a) 53 (b) 70 (c) 3 (d) 21
  19. 19.Which number is the odd one out: 96, 87, 37, 41? (a) 96 (b) 87 (c) 37 (d) 41
  20. 20.Which number is the odd one out: 11, 89, 71, 86? (a) 11 (b) 89 (c) 71 (d) 86
  21. 21.Which number is the odd one out: 88, 96, 23, 24? (a) 88 (b) 96 (c) 23 (d) 24
  22. 22.Which number is the odd one out: 39, 69, 4, 51? (a) 39 (b) 69 (c) 4 (d) 51
  23. 23.Which number is the odd one out: 11, 91, 98, 14? (a) 11 (b) 91 (c) 98 (d) 14
  24. 24.Which number is the odd one out: 90, 59, 73, 11? (a) 90 (b) 59 (c) 73 (d) 11
  25. 25.Which number is the odd one out: 7, 14, 98, 47? (a) 7 (b) 14 (c) 98 (d) 47
  26. 26.Which number is the odd one out: 77, 91, 90, 70? (a) 77 (b) 91 (c) 90 (d) 70
  27. 27.Which number is the odd one out: 91, 21, 14, 78? (a) 91 (b) 21 (c) 14 (d) 78
  28. 28.Which number is the odd one out: 41, 79, 10, 2? (a) 41 (b) 79 (c) 10 (d) 2
  29. 29.Which number is the odd one out: 89, 67, 49, 37? (a) 89 (b) 67 (c) 49 (d) 37
  30. 30.Which number is the odd one out: 29, 78, 51, 41? (a) 29 (b) 78 (c) 51 (d) 41
  31. 31.Which number is the odd one out: 5, 71, 80, 59? (a) 5 (b) 71 (c) 80 (d) 59
  32. 32.Which number is the odd one out: 47, 96, 3, 37? (a) 47 (b) 96 (c) 3 (d) 37
  33. 33.Which number is the odd one out: 66, 79, 53, 23? (a) 66 (b) 79 (c) 53 (d) 23
  34. 34.Which number is the odd one out: 13, 38, 79, 61? (a) 13 (b) 38 (c) 79 (d) 61
  35. 35.Which number is the odd one out: 61, 79, 6, 29? (a) 61 (b) 79 (c) 6 (d) 29
  36. 36.Which number is the odd one out: 63, 31, 37, 43? (a) 63 (b) 31 (c) 37 (d) 43
  37. 37.Which number is the odd one out: 13, 89, 9, 23? (a) 13 (b) 89 (c) 9 (d) 23
  38. 38.Which number is the odd one out: 33, 38, 76, 68? (a) 33 (b) 38 (c) 76 (d) 68
  39. 39.Which number is the odd one out: 66, 47, 43, 19? (a) 66 (b) 47 (c) 43 (d) 19
  40. 40.Which number is the odd one out: 67, 97, 71, 14? (a) 67 (b) 97 (c) 71 (d) 14

Answer key

  1. 9
  2. 27
  3. 60
  4. 78
  5. 42
  6. 90
  7. 51
  8. 34
  9. 98
  10. 72
  11. 30
  12. 26
  13. 44
  14. 48
  15. 22
  16. 40
  17. 24
  18. 70
  19. 96
  20. 86
  21. 23
  22. 4
  23. 11
  24. 90
  25. 47
  26. 90
  27. 78
  28. 10
  29. 49
  30. 78
  31. 80
  32. 96
  33. 66
  34. 38
  35. 6
  36. 63
  37. 9
  38. 33
  39. 66
  40. 14

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