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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 265 · 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: 16, 43, 13, 23? (a) 16 (b) 43 (c) 13 (d) 23
  2. 2.Which number is the odd one out: 20, 80, 8, 47? (a) 20 (b) 80 (c) 8 (d) 47
  3. 3.Which number is the odd one out: 97, 13, 19, 94? (a) 97 (b) 13 (c) 19 (d) 94
  4. 4.Which number is the odd one out: 79, 37, 47, 36? (a) 79 (b) 37 (c) 47 (d) 36
  5. 5.Which number is the odd one out: 88, 3, 44, 32? (a) 88 (b) 3 (c) 44 (d) 32
  6. 6.Which number is the odd one out: 11, 93, 43, 61? (a) 11 (b) 93 (c) 43 (d) 61
  7. 7.Which number is the odd one out: 87, 15, 65, 55? (a) 87 (b) 15 (c) 65 (d) 55
  8. 8.Which number is the odd one out: 27, 99, 4, 93? (a) 27 (b) 99 (c) 4 (d) 93
  9. 9.Which number is the odd one out: 60, 40, 53, 96? (a) 60 (b) 40 (c) 53 (d) 96
  10. 10.Which number is the odd one out: 70, 20, 84, 42? (a) 70 (b) 20 (c) 84 (d) 42
  11. 11.Which number is the odd one out: 2, 19, 79, 40? (a) 2 (b) 19 (c) 79 (d) 40
  12. 12.Which number is the odd one out: 81, 73, 31, 41? (a) 81 (b) 73 (c) 31 (d) 41
  13. 13.Which number is the odd one out: 64, 70, 16, 4? (a) 64 (b) 70 (c) 16 (d) 4
  14. 14.Which number is the odd one out: 31, 2, 26, 59? (a) 31 (b) 2 (c) 26 (d) 59
  15. 15.Which number is the odd one out: 67, 11, 38, 71? (a) 67 (b) 11 (c) 38 (d) 71
  16. 16.Which number is the odd one out: 3, 59, 61, 36? (a) 3 (b) 59 (c) 61 (d) 36
  17. 17.Which number is the odd one out: 73, 31, 28, 53? (a) 73 (b) 31 (c) 28 (d) 53
  18. 18.Which number is the odd one out: 12, 47, 19, 3? (a) 12 (b) 47 (c) 19 (d) 3
  19. 19.Which number is the odd one out: 83, 11, 71, 58? (a) 83 (b) 11 (c) 71 (d) 58
  20. 20.Which number is the odd one out: 66, 59, 43, 41? (a) 66 (b) 59 (c) 43 (d) 41
  21. 21.Which number is the odd one out: 89, 24, 37, 31? (a) 89 (b) 24 (c) 37 (d) 31
  22. 22.Which number is the odd one out: 84, 57, 47, 79? (a) 84 (b) 57 (c) 47 (d) 79
  23. 23.Which number is the odd one out: 9, 81, 27, 38? (a) 9 (b) 81 (c) 27 (d) 38
  24. 24.Which number is the odd one out: 71, 47, 16, 79? (a) 71 (b) 47 (c) 16 (d) 79
  25. 25.Which number is the odd one out: 79, 83, 86, 17? (a) 79 (b) 83 (c) 86 (d) 17
  26. 26.Which number is the odd one out: 53, 17, 39, 37? (a) 53 (b) 17 (c) 39 (d) 37
  27. 27.Which number is the odd one out: 17, 83, 98, 91? (a) 17 (b) 83 (c) 98 (d) 91
  28. 28.Which number is the odd one out: 11, 64, 2, 73? (a) 11 (b) 64 (c) 2 (d) 73
  29. 29.Which number is the odd one out: 29, 43, 67, 68? (a) 29 (b) 43 (c) 67 (d) 68
  30. 30.Which number is the odd one out: 53, 23, 43, 15? (a) 53 (b) 23 (c) 43 (d) 15
  31. 31.Which number is the odd one out: 71, 88, 31, 59? (a) 71 (b) 88 (c) 31 (d) 59
  32. 32.Which number is the odd one out: 22, 41, 38, 94? (a) 22 (b) 41 (c) 38 (d) 94
  33. 33.Which number is the odd one out: 43, 11, 80, 31? (a) 43 (b) 11 (c) 80 (d) 31
  34. 34.Which number is the odd one out: 77, 48, 88, 24? (a) 77 (b) 48 (c) 88 (d) 24
  35. 35.Which number is the odd one out: 2, 30, 3, 11? (a) 2 (b) 30 (c) 3 (d) 11
  36. 36.Which number is the odd one out: 40, 8, 19, 80? (a) 40 (b) 8 (c) 19 (d) 80
  37. 37.Which number is the odd one out: 59, 73, 2, 62? (a) 59 (b) 73 (c) 2 (d) 62
  38. 38.Which number is the odd one out: 4, 17, 29, 37? (a) 4 (b) 17 (c) 29 (d) 37
  39. 39.Which number is the odd one out: 29, 36, 89, 71? (a) 29 (b) 36 (c) 89 (d) 71
  40. 40.Which number is the odd one out: 19, 41, 18, 47? (a) 19 (b) 41 (c) 18 (d) 47

Answer key

  1. 16
  2. 47
  3. 94
  4. 36
  5. 3
  6. 93
  7. 87
  8. 4
  9. 53
  10. 20
  11. 40
  12. 81
  13. 70
  14. 26
  15. 38
  16. 36
  17. 28
  18. 12
  19. 58
  20. 66
  21. 24
  22. 84
  23. 38
  24. 16
  25. 86
  26. 39
  27. 98
  28. 64
  29. 68
  30. 15
  31. 88
  32. 41
  33. 80
  34. 77
  35. 30
  36. 19
  37. 62
  38. 4
  39. 36
  40. 18

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