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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 65 · 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: 48, 88, 97, 96? (a) 48 (b) 88 (c) 97 (d) 96
  2. 2.Which number is the odd one out: 79, 20, 59, 83? (a) 79 (b) 20 (c) 59 (d) 83
  3. 3.Which number is the odd one out: 31, 30, 53, 67? (a) 31 (b) 30 (c) 53 (d) 67
  4. 4.Which number is the odd one out: 9, 75, 10, 50? (a) 9 (b) 75 (c) 10 (d) 50
  5. 5.Which number is the odd one out: 75, 67, 53, 71? (a) 75 (b) 67 (c) 53 (d) 71
  6. 6.Which number is the odd one out: 89, 43, 10, 97? (a) 89 (b) 43 (c) 10 (d) 97
  7. 7.Which number is the odd one out: 2, 41, 32, 67? (a) 2 (b) 41 (c) 32 (d) 67
  8. 8.Which number is the odd one out: 73, 67, 87, 41? (a) 73 (b) 67 (c) 87 (d) 41
  9. 9.Which number is the odd one out: 72, 75, 50, 55? (a) 72 (b) 75 (c) 50 (d) 55
  10. 10.Which number is the odd one out: 78, 13, 2, 53? (a) 78 (b) 13 (c) 2 (d) 53
  11. 11.Which number is the odd one out: 59, 29, 6, 31? (a) 59 (b) 29 (c) 6 (d) 31
  12. 12.Which number is the odd one out: 91, 72, 42, 77? (a) 91 (b) 72 (c) 42 (d) 77
  13. 13.Which number is the odd one out: 79, 26, 97, 41? (a) 79 (b) 26 (c) 97 (d) 41
  14. 14.Which number is the odd one out: 16, 47, 53, 71? (a) 16 (b) 47 (c) 53 (d) 71
  15. 15.Which number is the odd one out: 59, 8, 53, 19? (a) 59 (b) 8 (c) 53 (d) 19
  16. 16.Which number is the odd one out: 48, 24, 96, 45? (a) 48 (b) 24 (c) 96 (d) 45
  17. 17.Which number is the odd one out: 21, 51, 70, 33? (a) 21 (b) 51 (c) 70 (d) 33
  18. 18.Which number is the odd one out: 8, 88, 25, 32? (a) 8 (b) 88 (c) 25 (d) 32
  19. 19.Which number is the odd one out: 9, 4, 81, 8? (a) 9 (b) 4 (c) 81 (d) 8
  20. 20.Which number is the odd one out: 83, 59, 11, 6? (a) 83 (b) 59 (c) 11 (d) 6
  21. 21.Which number is the odd one out: 36, 53, 11, 61? (a) 36 (b) 53 (c) 11 (d) 61
  22. 22.Which number is the odd one out: 59, 43, 83, 70? (a) 59 (b) 43 (c) 83 (d) 70
  23. 23.Which number is the odd one out: 84, 42, 12, 26? (a) 84 (b) 42 (c) 12 (d) 26
  24. 24.Which number is the odd one out: 26, 37, 2, 94? (a) 26 (b) 37 (c) 2 (d) 94
  25. 25.Which number is the odd one out: 79, 84, 42, 28? (a) 79 (b) 84 (c) 42 (d) 28
  26. 26.Which number is the odd one out: 32, 35, 88, 80? (a) 32 (b) 35 (c) 88 (d) 80
  27. 27.Which number is the odd one out: 11, 24, 41, 59? (a) 11 (b) 24 (c) 41 (d) 59
  28. 28.Which number is the odd one out: 7, 2, 14, 59? (a) 7 (b) 2 (c) 14 (d) 59
  29. 29.Which number is the odd one out: 47, 71, 60, 31? (a) 47 (b) 71 (c) 60 (d) 31
  30. 30.Which number is the odd one out: 19, 30, 61, 97? (a) 19 (b) 30 (c) 61 (d) 97
  31. 31.Which number is the odd one out: 88, 8, 40, 10? (a) 88 (b) 8 (c) 40 (d) 10
  32. 32.Which number is the odd one out: 27, 53, 43, 67? (a) 27 (b) 53 (c) 43 (d) 67
  33. 33.Which number is the odd one out: 46, 22, 45, 94? (a) 46 (b) 22 (c) 45 (d) 94
  34. 34.Which number is the odd one out: 61, 67, 24, 17? (a) 61 (b) 67 (c) 24 (d) 17
  35. 35.Which number is the odd one out: 19, 57, 11, 37? (a) 19 (b) 57 (c) 11 (d) 37
  36. 36.Which number is the odd one out: 60, 21, 77, 14? (a) 60 (b) 21 (c) 77 (d) 14
  37. 37.Which number is the odd one out: 59, 47, 19, 46? (a) 59 (b) 47 (c) 19 (d) 46
  38. 38.Which number is the odd one out: 47, 12, 23, 37? (a) 47 (b) 12 (c) 23 (d) 37
  39. 39.Which number is the odd one out: 84, 70, 60, 66? (a) 84 (b) 70 (c) 60 (d) 66
  40. 40.Which number is the odd one out: 31, 37, 6, 67? (a) 31 (b) 37 (c) 6 (d) 67

Answer key

  1. 97
  2. 20
  3. 30
  4. 9
  5. 75
  6. 10
  7. 32
  8. 87
  9. 72
  10. 78
  11. 6
  12. 72
  13. 26
  14. 16
  15. 8
  16. 45
  17. 70
  18. 25
  19. 8
  20. 6
  21. 36
  22. 70
  23. 26
  24. 37
  25. 79
  26. 35
  27. 24
  28. 14
  29. 60
  30. 30
  31. 10
  32. 27
  33. 45
  34. 24
  35. 57
  36. 60
  37. 46
  38. 12
  39. 70
  40. 6

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