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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 631 · 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: 30, 47, 53, 73? (a) 30 (b) 47 (c) 53 (d) 73
  2. 2.Which number is the odd one out: 19, 89, 35, 5? (a) 19 (b) 89 (c) 35 (d) 5
  3. 3.Which number is the odd one out: 87, 97, 61, 19? (a) 87 (b) 97 (c) 61 (d) 19
  4. 4.Which number is the odd one out: 16, 64, 4, 15? (a) 16 (b) 64 (c) 4 (d) 15
  5. 5.Which number is the odd one out: 97, 5, 80, 19? (a) 97 (b) 5 (c) 80 (d) 19
  6. 6.Which number is the odd one out: 18, 83, 97, 11? (a) 18 (b) 83 (c) 97 (d) 11
  7. 7.Which number is the odd one out: 70, 43, 29, 2? (a) 70 (b) 43 (c) 29 (d) 2
  8. 8.Which number is the odd one out: 29, 12, 53, 79? (a) 29 (b) 12 (c) 53 (d) 79
  9. 9.Which number is the odd one out: 4, 73, 59, 83? (a) 4 (b) 73 (c) 59 (d) 83
  10. 10.Which number is the odd one out: 24, 67, 2, 47? (a) 24 (b) 67 (c) 2 (d) 47
  11. 11.Which number is the odd one out: 67, 13, 15, 37? (a) 67 (b) 13 (c) 15 (d) 37
  12. 12.Which number is the odd one out: 30, 41, 53, 89? (a) 30 (b) 41 (c) 53 (d) 89
  13. 13.Which number is the odd one out: 53, 95, 5, 17? (a) 53 (b) 95 (c) 5 (d) 17
  14. 14.Which number is the odd one out: 83, 29, 43, 46? (a) 83 (b) 29 (c) 43 (d) 46
  15. 15.Which number is the odd one out: 76, 99, 21, 63? (a) 76 (b) 99 (c) 21 (d) 63
  16. 16.Which number is the odd one out: 12, 64, 16, 32? (a) 12 (b) 64 (c) 16 (d) 32
  17. 17.Which number is the odd one out: 73, 67, 77, 89? (a) 73 (b) 67 (c) 77 (d) 89
  18. 18.Which number is the odd one out: 61, 2, 32, 67? (a) 61 (b) 2 (c) 32 (d) 67
  19. 19.Which number is the odd one out: 17, 2, 52, 73? (a) 17 (b) 2 (c) 52 (d) 73
  20. 20.Which number is the odd one out: 48, 57, 96, 24? (a) 48 (b) 57 (c) 96 (d) 24
  21. 21.Which number is the odd one out: 37, 47, 8, 71? (a) 37 (b) 47 (c) 8 (d) 71
  22. 22.Which number is the odd one out: 99, 45, 65, 27? (a) 99 (b) 45 (c) 65 (d) 27
  23. 23.Which number is the odd one out: 74, 47, 13, 89? (a) 74 (b) 47 (c) 13 (d) 89
  24. 24.Which number is the odd one out: 41, 4, 97, 79? (a) 41 (b) 4 (c) 97 (d) 79
  25. 25.Which number is the odd one out: 42, 61, 78, 21? (a) 42 (b) 61 (c) 78 (d) 21
  26. 26.Which number is the odd one out: 17, 34, 47, 23? (a) 17 (b) 34 (c) 47 (d) 23
  27. 27.Which number is the odd one out: 80, 96, 84, 40? (a) 80 (b) 96 (c) 84 (d) 40
  28. 28.Which number is the odd one out: 61, 34, 71, 97? (a) 61 (b) 34 (c) 71 (d) 97
  29. 29.Which number is the odd one out: 41, 74, 83, 31? (a) 41 (b) 74 (c) 83 (d) 31
  30. 30.Which number is the odd one out: 95, 61, 83, 31? (a) 95 (b) 61 (c) 83 (d) 31
  31. 31.Which number is the odd one out: 61, 2, 16, 29? (a) 61 (b) 2 (c) 16 (d) 29
  32. 32.Which number is the odd one out: 37, 53, 61, 45? (a) 37 (b) 53 (c) 61 (d) 45
  33. 33.Which number is the odd one out: 19, 79, 23, 38? (a) 19 (b) 79 (c) 23 (d) 38
  34. 34.Which number is the odd one out: 91, 65, 14, 70? (a) 91 (b) 65 (c) 14 (d) 70
  35. 35.Which number is the odd one out: 37, 13, 83, 18? (a) 37 (b) 13 (c) 83 (d) 18
  36. 36.Which number is the odd one out: 89, 29, 67, 87? (a) 89 (b) 29 (c) 67 (d) 87
  37. 37.Which number is the odd one out: 60, 91, 77, 98? (a) 60 (b) 91 (c) 77 (d) 98
  38. 38.Which number is the odd one out: 78, 18, 51, 54? (a) 78 (b) 18 (c) 51 (d) 54
  39. 39.Which number is the odd one out: 52, 68, 86, 44? (a) 52 (b) 68 (c) 86 (d) 44
  40. 40.Which number is the odd one out: 5, 10, 2, 85? (a) 5 (b) 10 (c) 2 (d) 85

Answer key

  1. 30
  2. 35
  3. 87
  4. 15
  5. 80
  6. 18
  7. 70
  8. 12
  9. 4
  10. 24
  11. 15
  12. 30
  13. 95
  14. 46
  15. 76
  16. 12
  17. 77
  18. 32
  19. 52
  20. 57
  21. 8
  22. 65
  23. 74
  24. 4
  25. 61
  26. 34
  27. 84
  28. 34
  29. 74
  30. 95
  31. 16
  32. 45
  33. 38
  34. 65
  35. 18
  36. 87
  37. 60
  38. 51
  39. 86
  40. 2

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