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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 446 · 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: 26, 85, 10, 55? (a) 26 (b) 85 (c) 10 (d) 55
  2. 2.Which number is the odd one out: 88, 36, 8, 24? (a) 88 (b) 36 (c) 8 (d) 24
  3. 3.Which number is the odd one out: 24, 6, 8, 66? (a) 24 (b) 6 (c) 8 (d) 66
  4. 4.Which number is the odd one out: 61, 84, 67, 17? (a) 61 (b) 84 (c) 67 (d) 17
  5. 5.Which number is the odd one out: 92, 44, 52, 74? (a) 92 (b) 44 (c) 52 (d) 74
  6. 6.Which number is the odd one out: 67, 13, 17, 27? (a) 67 (b) 13 (c) 17 (d) 27
  7. 7.Which number is the odd one out: 77, 19, 13, 17? (a) 77 (b) 19 (c) 13 (d) 17
  8. 8.Which number is the odd one out: 18, 3, 43, 53? (a) 18 (b) 3 (c) 43 (d) 53
  9. 9.Which number is the odd one out: 39, 61, 11, 31? (a) 39 (b) 61 (c) 11 (d) 31
  10. 10.Which number is the odd one out: 65, 17, 61, 53? (a) 65 (b) 17 (c) 61 (d) 53
  11. 11.Which number is the odd one out: 35, 59, 7, 79? (a) 35 (b) 59 (c) 7 (d) 79
  12. 12.Which number is the odd one out: 35, 21, 70, 48? (a) 35 (b) 21 (c) 70 (d) 48
  13. 13.Which number is the odd one out: 42, 79, 19, 51? (a) 42 (b) 79 (c) 19 (d) 51
  14. 14.Which number is the odd one out: 24, 84, 56, 28? (a) 24 (b) 84 (c) 56 (d) 28
  15. 15.Which number is the odd one out: 91, 51, 98, 14? (a) 91 (b) 51 (c) 98 (d) 14
  16. 16.Which number is the odd one out: 53, 95, 23, 17? (a) 53 (b) 95 (c) 23 (d) 17
  17. 17.Which number is the odd one out: 67, 37, 7, 28? (a) 67 (b) 37 (c) 7 (d) 28
  18. 18.Which number is the odd one out: 11, 61, 59, 27? (a) 11 (b) 61 (c) 59 (d) 27
  19. 19.Which number is the odd one out: 17, 97, 61, 82? (a) 17 (b) 97 (c) 61 (d) 82
  20. 20.Which number is the odd one out: 17, 30, 19, 73? (a) 17 (b) 30 (c) 19 (d) 73
  21. 21.Which number is the odd one out: 27, 9, 73, 81? (a) 27 (b) 9 (c) 73 (d) 81
  22. 22.Which number is the odd one out: 41, 97, 14, 11? (a) 41 (b) 97 (c) 14 (d) 11
  23. 23.Which number is the odd one out: 50, 68, 64, 16? (a) 50 (b) 68 (c) 64 (d) 16
  24. 24.Which number is the odd one out: 4, 28, 64, 16? (a) 4 (b) 28 (c) 64 (d) 16
  25. 25.Which number is the odd one out: 85, 2, 45, 27? (a) 85 (b) 2 (c) 45 (d) 27
  26. 26.Which number is the odd one out: 91, 98, 14, 31? (a) 91 (b) 98 (c) 14 (d) 31
  27. 27.Which number is the odd one out: 23, 25, 37, 13? (a) 23 (b) 25 (c) 37 (d) 13
  28. 28.Which number is the odd one out: 5, 25, 13, 19? (a) 5 (b) 25 (c) 13 (d) 19
  29. 29.Which number is the odd one out: 3, 51, 5, 69? (a) 3 (b) 51 (c) 5 (d) 69
  30. 30.Which number is the odd one out: 16, 53, 83, 71? (a) 16 (b) 53 (c) 83 (d) 71
  31. 31.Which number is the odd one out: 88, 4, 64, 32? (a) 88 (b) 4 (c) 64 (d) 32
  32. 32.Which number is the odd one out: 31, 3, 15, 23? (a) 31 (b) 3 (c) 15 (d) 23
  33. 33.Which number is the odd one out: 63, 59, 17, 67? (a) 63 (b) 59 (c) 17 (d) 67
  34. 34.Which number is the odd one out: 40, 88, 52, 15? (a) 40 (b) 88 (c) 52 (d) 15
  35. 35.Which number is the odd one out: 2, 97, 73, 66? (a) 2 (b) 97 (c) 73 (d) 66
  36. 36.Which number is the odd one out: 3, 37, 30, 47? (a) 3 (b) 37 (c) 30 (d) 47
  37. 37.Which number is the odd one out: 53, 41, 30, 11? (a) 53 (b) 41 (c) 30 (d) 11
  38. 38.Which number is the odd one out: 95, 25, 36, 65? (a) 95 (b) 25 (c) 36 (d) 65
  39. 39.Which number is the odd one out: 77, 79, 29, 42? (a) 77 (b) 79 (c) 29 (d) 42
  40. 40.Which number is the odd one out: 22, 8, 48, 96? (a) 22 (b) 8 (c) 48 (d) 96

Answer key

  1. 26
  2. 36
  3. 8
  4. 84
  5. 74
  6. 27
  7. 77
  8. 18
  9. 39
  10. 65
  11. 35
  12. 48
  13. 42
  14. 24
  15. 51
  16. 95
  17. 28
  18. 27
  19. 82
  20. 30
  21. 73
  22. 14
  23. 50
  24. 28
  25. 2
  26. 31
  27. 25
  28. 25
  29. 5
  30. 16
  31. 4
  32. 15
  33. 63
  34. 15
  35. 66
  36. 30
  37. 30
  38. 36
  39. 42
  40. 22

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