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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 214 · 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, 9, 36, 81? (a) 48 (b) 9 (c) 36 (d) 81
  2. 2.Which number is the odd one out: 37, 24, 60, 80? (a) 37 (b) 24 (c) 60 (d) 80
  3. 3.Which number is the odd one out: 48, 17, 18, 72? (a) 48 (b) 17 (c) 18 (d) 72
  4. 4.Which number is the odd one out: 65, 71, 61, 17? (a) 65 (b) 71 (c) 61 (d) 17
  5. 5.Which number is the odd one out: 96, 48, 60, 15? (a) 96 (b) 48 (c) 60 (d) 15
  6. 6.Which number is the odd one out: 56, 31, 59, 11? (a) 56 (b) 31 (c) 59 (d) 11
  7. 7.Which number is the odd one out: 24, 12, 88, 35? (a) 24 (b) 12 (c) 88 (d) 35
  8. 8.Which number is the odd one out: 98, 14, 24, 42? (a) 98 (b) 14 (c) 24 (d) 42
  9. 9.Which number is the odd one out: 55, 38, 94, 22? (a) 55 (b) 38 (c) 94 (d) 22
  10. 10.Which number is the odd one out: 17, 11, 31, 66? (a) 17 (b) 11 (c) 31 (d) 66
  11. 11.Which number is the odd one out: 65, 50, 85, 98? (a) 65 (b) 50 (c) 85 (d) 98
  12. 12.Which number is the odd one out: 2, 67, 89, 28? (a) 2 (b) 67 (c) 89 (d) 28
  13. 13.Which number is the odd one out: 4, 24, 32, 96? (a) 4 (b) 24 (c) 32 (d) 96
  14. 14.Which number is the odd one out: 29, 71, 89, 80? (a) 29 (b) 71 (c) 89 (d) 80
  15. 15.Which number is the odd one out: 22, 68, 48, 24? (a) 22 (b) 68 (c) 48 (d) 24
  16. 16.Which number is the odd one out: 83, 57, 17, 53? (a) 83 (b) 57 (c) 17 (d) 53
  17. 17.Which number is the odd one out: 8, 89, 17, 31? (a) 8 (b) 89 (c) 17 (d) 31
  18. 18.Which number is the odd one out: 45, 65, 55, 27? (a) 45 (b) 65 (c) 55 (d) 27
  19. 19.Which number is the odd one out: 38, 94, 27, 34? (a) 38 (b) 94 (c) 27 (d) 34
  20. 20.Which number is the odd one out: 66, 11, 41, 43? (a) 66 (b) 11 (c) 41 (d) 43
  21. 21.Which number is the odd one out: 52, 76, 44, 78? (a) 52 (b) 76 (c) 44 (d) 78
  22. 22.Which number is the odd one out: 10, 43, 83, 29? (a) 10 (b) 43 (c) 83 (d) 29
  23. 23.Which number is the odd one out: 31, 41, 54, 33? (a) 31 (b) 41 (c) 54 (d) 33
  24. 24.Which number is the odd one out: 96, 95, 24, 8? (a) 96 (b) 95 (c) 24 (d) 8
  25. 25.Which number is the odd one out: 73, 72, 41, 43? (a) 73 (b) 72 (c) 41 (d) 43
  26. 26.Which number is the odd one out: 83, 54, 41, 2? (a) 83 (b) 54 (c) 41 (d) 2
  27. 27.Which number is the odd one out: 78, 53, 67, 23? (a) 78 (b) 53 (c) 67 (d) 23
  28. 28.Which number is the odd one out: 13, 22, 79, 83? (a) 13 (b) 22 (c) 79 (d) 83
  29. 29.Which number is the odd one out: 17, 2, 62, 82? (a) 17 (b) 2 (c) 62 (d) 82
  30. 30.Which number is the odd one out: 66, 30, 40, 48? (a) 66 (b) 30 (c) 40 (d) 48
  31. 31.Which number is the odd one out: 37, 89, 29, 12? (a) 37 (b) 89 (c) 29 (d) 12
  32. 32.Which number is the odd one out: 47, 30, 87, 17? (a) 47 (b) 30 (c) 87 (d) 17
  33. 33.Which number is the odd one out: 96, 24, 88, 70? (a) 96 (b) 24 (c) 88 (d) 70
  34. 34.Which number is the odd one out: 85, 40, 88, 44? (a) 85 (b) 40 (c) 88 (d) 44
  35. 35.Which number is the odd one out: 89, 21, 73, 79? (a) 89 (b) 21 (c) 73 (d) 79
  36. 36.Which number is the odd one out: 29, 84, 12, 42? (a) 29 (b) 84 (c) 12 (d) 42
  37. 37.Which number is the odd one out: 96, 26, 18, 72? (a) 96 (b) 26 (c) 18 (d) 72
  38. 38.Which number is the odd one out: 20, 66, 90, 18? (a) 20 (b) 66 (c) 90 (d) 18
  39. 39.Which number is the odd one out: 67, 83, 77, 71? (a) 67 (b) 83 (c) 77 (d) 71
  40. 40.Which number is the odd one out: 12, 10, 96, 8? (a) 12 (b) 10 (c) 96 (d) 8

Answer key

  1. 48
  2. 37
  3. 17
  4. 65
  5. 15
  6. 56
  7. 35
  8. 24
  9. 55
  10. 66
  11. 98
  12. 28
  13. 4
  14. 80
  15. 22
  16. 57
  17. 8
  18. 27
  19. 27
  20. 66
  21. 78
  22. 10
  23. 54
  24. 95
  25. 72
  26. 54
  27. 78
  28. 22
  29. 17
  30. 40
  31. 12
  32. 30
  33. 70
  34. 85
  35. 21
  36. 29
  37. 26
  38. 20
  39. 77
  40. 10

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