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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 85 · 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: 17, 47, 29, 50? (a) 17 (b) 47 (c) 29 (d) 50
  2. 2.Which number is the odd one out: 6, 11, 47, 13? (a) 6 (b) 11 (c) 47 (d) 13
  3. 3.Which number is the odd one out: 19, 67, 16, 17? (a) 19 (b) 67 (c) 16 (d) 17
  4. 4.Which number is the odd one out: 16, 42, 24, 64? (a) 16 (b) 42 (c) 24 (d) 64
  5. 5.Which number is the odd one out: 5, 35, 29, 23? (a) 5 (b) 35 (c) 29 (d) 23
  6. 6.Which number is the odd one out: 40, 8, 38, 80? (a) 40 (b) 8 (c) 38 (d) 80
  7. 7.Which number is the odd one out: 17, 53, 48, 13? (a) 17 (b) 53 (c) 48 (d) 13
  8. 8.Which number is the odd one out: 29, 74, 71, 53? (a) 29 (b) 74 (c) 71 (d) 53
  9. 9.Which number is the odd one out: 23, 11, 28, 37? (a) 23 (b) 11 (c) 28 (d) 37
  10. 10.Which number is the odd one out: 96, 6, 48, 62? (a) 96 (b) 6 (c) 48 (d) 62
  11. 11.Which number is the odd one out: 19, 11, 29, 90? (a) 19 (b) 11 (c) 29 (d) 90
  12. 12.Which number is the odd one out: 90, 4, 54, 30? (a) 90 (b) 4 (c) 54 (d) 30
  13. 13.Which number is the odd one out: 35, 48, 56, 96? (a) 35 (b) 48 (c) 56 (d) 96
  14. 14.Which number is the odd one out: 43, 27, 89, 19? (a) 43 (b) 27 (c) 89 (d) 19
  15. 15.Which number is the odd one out: 61, 37, 53, 21? (a) 61 (b) 37 (c) 53 (d) 21
  16. 16.Which number is the odd one out: 16, 20, 32, 64? (a) 16 (b) 20 (c) 32 (d) 64
  17. 17.Which number is the odd one out: 37, 29, 23, 46? (a) 37 (b) 29 (c) 23 (d) 46
  18. 18.Which number is the odd one out: 81, 71, 17, 37? (a) 81 (b) 71 (c) 17 (d) 37
  19. 19.Which number is the odd one out: 86, 15, 55, 75? (a) 86 (b) 15 (c) 55 (d) 75
  20. 20.Which number is the odd one out: 96, 20, 40, 60? (a) 96 (b) 20 (c) 40 (d) 60
  21. 21.Which number is the odd one out: 9, 23, 3, 11? (a) 9 (b) 23 (c) 3 (d) 11
  22. 22.Which number is the odd one out: 23, 34, 79, 17? (a) 23 (b) 34 (c) 79 (d) 17
  23. 23.Which number is the odd one out: 23, 25, 19, 53? (a) 23 (b) 25 (c) 19 (d) 53
  24. 24.Which number is the odd one out: 55, 18, 54, 27? (a) 55 (b) 18 (c) 54 (d) 27
  25. 25.Which number is the odd one out: 34, 11, 23, 61? (a) 34 (b) 11 (c) 23 (d) 61
  26. 26.Which number is the odd one out: 2, 23, 74, 71? (a) 2 (b) 23 (c) 74 (d) 71
  27. 27.Which number is the odd one out: 47, 61, 17, 30? (a) 47 (b) 61 (c) 17 (d) 30
  28. 28.Which number is the odd one out: 46, 67, 71, 43? (a) 46 (b) 67 (c) 71 (d) 43
  29. 29.Which number is the odd one out: 88, 8, 32, 97? (a) 88 (b) 8 (c) 32 (d) 97
  30. 30.Which number is the odd one out: 56, 84, 37, 24? (a) 56 (b) 84 (c) 37 (d) 24
  31. 31.Which number is the odd one out: 19, 82, 26, 2? (a) 19 (b) 82 (c) 26 (d) 2
  32. 32.Which number is the odd one out: 47, 59, 9, 97? (a) 47 (b) 59 (c) 9 (d) 97
  33. 33.Which number is the odd one out: 27, 81, 9, 28? (a) 27 (b) 81 (c) 9 (d) 28
  34. 34.Which number is the odd one out: 7, 81, 9, 63? (a) 7 (b) 81 (c) 9 (d) 63
  35. 35.Which number is the odd one out: 24, 18, 32, 54? (a) 24 (b) 18 (c) 32 (d) 54
  36. 36.Which number is the odd one out: 85, 31, 41, 37? (a) 85 (b) 31 (c) 41 (d) 37
  37. 37.Which number is the odd one out: 61, 93, 36, 41? (a) 61 (b) 93 (c) 36 (d) 41
  38. 38.Which number is the odd one out: 19, 2, 88, 41? (a) 19 (b) 2 (c) 88 (d) 41
  39. 39.Which number is the odd one out: 54, 59, 23, 17? (a) 54 (b) 59 (c) 23 (d) 17
  40. 40.Which number is the odd one out: 96, 17, 73, 41? (a) 96 (b) 17 (c) 73 (d) 41

Answer key

  1. 50
  2. 6
  3. 16
  4. 42
  5. 35
  6. 38
  7. 48
  8. 74
  9. 28
  10. 62
  11. 90
  12. 4
  13. 35
  14. 27
  15. 21
  16. 20
  17. 46
  18. 81
  19. 86
  20. 96
  21. 9
  22. 34
  23. 25
  24. 55
  25. 34
  26. 74
  27. 30
  28. 46
  29. 97
  30. 37
  31. 19
  32. 9
  33. 28
  34. 7
  35. 32
  36. 85
  37. 36
  38. 88
  39. 54
  40. 96

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