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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 479 · 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: 97, 58, 47, 17? (a) 97 (b) 58 (c) 47 (d) 17
  2. 2.Which number is the odd one out: 61, 89, 43, 35? (a) 61 (b) 89 (c) 43 (d) 35
  3. 3.Which number is the odd one out: 89, 73, 57, 78? (a) 89 (b) 73 (c) 57 (d) 78
  4. 4.Which number is the odd one out: 50, 65, 55, 54? (a) 50 (b) 65 (c) 55 (d) 54
  5. 5.Which number is the odd one out: 8, 96, 32, 42? (a) 8 (b) 96 (c) 32 (d) 42
  6. 6.Which number is the odd one out: 31, 83, 55, 89? (a) 31 (b) 83 (c) 55 (d) 89
  7. 7.Which number is the odd one out: 31, 14, 41, 17? (a) 31 (b) 14 (c) 41 (d) 17
  8. 8.Which number is the odd one out: 55, 59, 5, 23? (a) 55 (b) 59 (c) 5 (d) 23
  9. 9.Which number is the odd one out: 2, 88, 43, 83? (a) 2 (b) 88 (c) 43 (d) 83
  10. 10.Which number is the odd one out: 64, 71, 16, 4? (a) 64 (b) 71 (c) 16 (d) 4
  11. 11.Which number is the odd one out: 83, 61, 71, 87? (a) 83 (b) 61 (c) 71 (d) 87
  12. 12.Which number is the odd one out: 8, 61, 73, 29? (a) 8 (b) 61 (c) 73 (d) 29
  13. 13.Which number is the odd one out: 97, 28, 67, 2? (a) 97 (b) 28 (c) 67 (d) 2
  14. 14.Which number is the odd one out: 45, 89, 5, 13? (a) 45 (b) 89 (c) 5 (d) 13
  15. 15.Which number is the odd one out: 54, 79, 18, 6? (a) 54 (b) 79 (c) 18 (d) 6
  16. 16.Which number is the odd one out: 3, 96, 31, 73? (a) 3 (b) 96 (c) 31 (d) 73
  17. 17.Which number is the odd one out: 76, 16, 64, 51? (a) 76 (b) 16 (c) 64 (d) 51
  18. 18.Which number is the odd one out: 53, 87, 73, 59? (a) 53 (b) 87 (c) 73 (d) 59
  19. 19.Which number is the odd one out: 73, 54, 53, 19? (a) 73 (b) 54 (c) 53 (d) 19
  20. 20.Which number is the odd one out: 71, 6, 2, 59? (a) 71 (b) 6 (c) 2 (d) 59
  21. 21.Which number is the odd one out: 91, 37, 53, 79? (a) 91 (b) 37 (c) 53 (d) 79
  22. 22.Which number is the odd one out: 21, 91, 24, 28? (a) 21 (b) 91 (c) 24 (d) 28
  23. 23.Which number is the odd one out: 19, 17, 89, 70? (a) 19 (b) 17 (c) 89 (d) 70
  24. 24.Which number is the odd one out: 8, 40, 88, 10? (a) 8 (b) 40 (c) 88 (d) 10
  25. 25.Which number is the odd one out: 45, 5, 3, 11? (a) 45 (b) 5 (c) 3 (d) 11
  26. 26.Which number is the odd one out: 61, 89, 40, 73? (a) 61 (b) 89 (c) 40 (d) 73
  27. 27.Which number is the odd one out: 58, 71, 83, 47? (a) 58 (b) 71 (c) 83 (d) 47
  28. 28.Which number is the odd one out: 18, 40, 24, 80? (a) 18 (b) 40 (c) 24 (d) 80
  29. 29.Which number is the odd one out: 47, 61, 43, 82? (a) 47 (b) 61 (c) 43 (d) 82
  30. 30.Which number is the odd one out: 87, 6, 85, 30? (a) 87 (b) 6 (c) 85 (d) 30
  31. 31.Which number is the odd one out: 93, 79, 19, 13? (a) 93 (b) 79 (c) 19 (d) 13
  32. 32.Which number is the odd one out: 96, 6, 55, 24? (a) 96 (b) 6 (c) 55 (d) 24
  33. 33.Which number is the odd one out: 3, 43, 87, 51? (a) 3 (b) 43 (c) 87 (d) 51
  34. 34.Which number is the odd one out: 30, 13, 19, 83? (a) 30 (b) 13 (c) 19 (d) 83
  35. 35.Which number is the odd one out: 43, 54, 11, 23? (a) 43 (b) 54 (c) 11 (d) 23
  36. 36.Which number is the odd one out: 13, 37, 40, 29? (a) 13 (b) 37 (c) 40 (d) 29
  37. 37.Which number is the odd one out: 42, 61, 59, 83? (a) 42 (b) 61 (c) 59 (d) 83
  38. 38.Which number is the odd one out: 41, 97, 16, 31? (a) 41 (b) 97 (c) 16 (d) 31
  39. 39.Which number is the odd one out: 7, 98, 94, 46? (a) 7 (b) 98 (c) 94 (d) 46
  40. 40.Which number is the odd one out: 11, 71, 62, 59? (a) 11 (b) 71 (c) 62 (d) 59

Answer key

  1. 58
  2. 35
  3. 78
  4. 54
  5. 42
  6. 55
  7. 14
  8. 55
  9. 88
  10. 71
  11. 87
  12. 8
  13. 28
  14. 45
  15. 79
  16. 96
  17. 51
  18. 87
  19. 54
  20. 6
  21. 91
  22. 24
  23. 70
  24. 10
  25. 45
  26. 40
  27. 58
  28. 18
  29. 82
  30. 85
  31. 93
  32. 55
  33. 43
  34. 30
  35. 54
  36. 40
  37. 42
  38. 16
  39. 7
  40. 62

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