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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 442 · 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: 20, 79, 71, 97? (a) 20 (b) 79 (c) 71 (d) 97
  2. 2.Which number is the odd one out: 71, 47, 72, 11? (a) 71 (b) 47 (c) 72 (d) 11
  3. 3.Which number is the odd one out: 66, 90, 99, 30? (a) 66 (b) 90 (c) 99 (d) 30
  4. 4.Which number is the odd one out: 53, 22, 67, 47? (a) 53 (b) 22 (c) 67 (d) 47
  5. 5.Which number is the odd one out: 15, 83, 5, 97? (a) 15 (b) 83 (c) 5 (d) 97
  6. 6.Which number is the odd one out: 41, 59, 83, 24? (a) 41 (b) 59 (c) 83 (d) 24
  7. 7.Which number is the odd one out: 24, 84, 96, 7? (a) 24 (b) 84 (c) 96 (d) 7
  8. 8.Which number is the odd one out: 64, 16, 8, 92? (a) 64 (b) 16 (c) 8 (d) 92
  9. 9.Which number is the odd one out: 51, 11, 83, 47? (a) 51 (b) 11 (c) 83 (d) 47
  10. 10.Which number is the odd one out: 27, 99, 21, 63? (a) 27 (b) 99 (c) 21 (d) 63
  11. 11.Which number is the odd one out: 5, 71, 25, 59? (a) 5 (b) 71 (c) 25 (d) 59
  12. 12.Which number is the odd one out: 85, 95, 59, 65? (a) 85 (b) 95 (c) 59 (d) 65
  13. 13.Which number is the odd one out: 56, 21, 8, 88? (a) 56 (b) 21 (c) 8 (d) 88
  14. 14.Which number is the odd one out: 83, 97, 37, 62? (a) 83 (b) 97 (c) 37 (d) 62
  15. 15.Which number is the odd one out: 13, 89, 33, 83? (a) 13 (b) 89 (c) 33 (d) 83
  16. 16.Which number is the odd one out: 88, 17, 97, 73? (a) 88 (b) 17 (c) 97 (d) 73
  17. 17.Which number is the odd one out: 31, 73, 4, 41? (a) 31 (b) 73 (c) 4 (d) 41
  18. 18.Which number is the odd one out: 34, 29, 11, 23? (a) 34 (b) 29 (c) 11 (d) 23
  19. 19.Which number is the odd one out: 37, 71, 59, 40? (a) 37 (b) 71 (c) 59 (d) 40
  20. 20.Which number is the odd one out: 61, 47, 71, 78? (a) 61 (b) 47 (c) 71 (d) 78
  21. 21.Which number is the odd one out: 23, 48, 40, 60? (a) 23 (b) 48 (c) 40 (d) 60
  22. 22.Which number is the odd one out: 43, 22, 2, 41? (a) 43 (b) 22 (c) 2 (d) 41
  23. 23.Which number is the odd one out: 42, 53, 41, 73? (a) 42 (b) 53 (c) 41 (d) 73
  24. 24.Which number is the odd one out: 40, 15, 11, 3? (a) 40 (b) 15 (c) 11 (d) 3
  25. 25.Which number is the odd one out: 41, 3, 97, 51? (a) 41 (b) 3 (c) 97 (d) 51
  26. 26.Which number is the odd one out: 10, 50, 5, 89? (a) 10 (b) 50 (c) 5 (d) 89
  27. 27.Which number is the odd one out: 10, 2, 47, 11? (a) 10 (b) 2 (c) 47 (d) 11
  28. 28.Which number is the odd one out: 11, 96, 48, 8? (a) 11 (b) 96 (c) 48 (d) 8
  29. 29.Which number is the odd one out: 17, 43, 20, 29? (a) 17 (b) 43 (c) 20 (d) 29
  30. 30.Which number is the odd one out: 16, 64, 4, 5? (a) 16 (b) 64 (c) 4 (d) 5
  31. 31.Which number is the odd one out: 99, 97, 9, 81? (a) 99 (b) 97 (c) 9 (d) 81
  32. 32.Which number is the odd one out: 92, 19, 73, 67? (a) 92 (b) 19 (c) 73 (d) 67
  33. 33.Which number is the odd one out: 59, 41, 29, 42? (a) 59 (b) 41 (c) 29 (d) 42
  34. 34.Which number is the odd one out: 76, 79, 11, 89? (a) 76 (b) 79 (c) 11 (d) 89
  35. 35.Which number is the odd one out: 62, 69, 3, 31? (a) 62 (b) 69 (c) 3 (d) 31
  36. 36.Which number is the odd one out: 99, 37, 67, 97? (a) 99 (b) 37 (c) 67 (d) 97
  37. 37.Which number is the odd one out: 19, 41, 37, 68? (a) 19 (b) 41 (c) 37 (d) 68
  38. 38.Which number is the odd one out: 8, 96, 24, 47? (a) 8 (b) 96 (c) 24 (d) 47
  39. 39.Which number is the odd one out: 25, 61, 17, 59? (a) 25 (b) 61 (c) 17 (d) 59
  40. 40.Which number is the odd one out: 79, 76, 89, 17? (a) 79 (b) 76 (c) 89 (d) 17

Answer key

  1. 20
  2. 72
  3. 99
  4. 22
  5. 15
  6. 24
  7. 7
  8. 92
  9. 51
  10. 21
  11. 25
  12. 59
  13. 21
  14. 62
  15. 33
  16. 88
  17. 4
  18. 34
  19. 40
  20. 78
  21. 23
  22. 22
  23. 42
  24. 40
  25. 51
  26. 89
  27. 10
  28. 11
  29. 20
  30. 5
  31. 97
  32. 92
  33. 42
  34. 76
  35. 62
  36. 99
  37. 68
  38. 47
  39. 25
  40. 76

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