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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 434 · 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: 37, 31, 15, 19? (a) 37 (b) 31 (c) 15 (d) 19
  2. 2.Which number is the odd one out: 67, 30, 59, 11? (a) 67 (b) 30 (c) 59 (d) 11
  3. 3.Which number is the odd one out: 24, 63, 96, 42? (a) 24 (b) 63 (c) 96 (d) 42
  4. 4.Which number is the odd one out: 31, 48, 61, 83? (a) 31 (b) 48 (c) 61 (d) 83
  5. 5.Which number is the odd one out: 77, 91, 98, 10? (a) 77 (b) 91 (c) 98 (d) 10
  6. 6.Which number is the odd one out: 6, 17, 61, 53? (a) 6 (b) 17 (c) 61 (d) 53
  7. 7.Which number is the odd one out: 37, 97, 13, 21? (a) 37 (b) 97 (c) 13 (d) 21
  8. 8.Which number is the odd one out: 13, 32, 89, 19? (a) 13 (b) 32 (c) 89 (d) 19
  9. 9.Which number is the odd one out: 13, 59, 80, 2? (a) 13 (b) 59 (c) 80 (d) 2
  10. 10.Which number is the odd one out: 64, 16, 92, 4? (a) 64 (b) 16 (c) 92 (d) 4
  11. 11.Which number is the odd one out: 97, 56, 41, 43? (a) 97 (b) 56 (c) 41 (d) 43
  12. 12.Which number is the odd one out: 54, 19, 99, 18? (a) 54 (b) 19 (c) 99 (d) 18
  13. 13.Which number is the odd one out: 97, 68, 73, 79? (a) 97 (b) 68 (c) 73 (d) 79
  14. 14.Which number is the odd one out: 88, 32, 21, 56? (a) 88 (b) 32 (c) 21 (d) 56
  15. 15.Which number is the odd one out: 2, 32, 13, 29? (a) 2 (b) 32 (c) 13 (d) 29
  16. 16.Which number is the odd one out: 11, 2, 41, 78? (a) 11 (b) 2 (c) 41 (d) 78
  17. 17.Which number is the odd one out: 71, 59, 19, 96? (a) 71 (b) 59 (c) 19 (d) 96
  18. 18.Which number is the odd one out: 40, 9, 80, 8? (a) 40 (b) 9 (c) 80 (d) 8
  19. 19.Which number is the odd one out: 67, 97, 15, 17? (a) 67 (b) 97 (c) 15 (d) 17
  20. 20.Which number is the odd one out: 24, 42, 32, 8? (a) 24 (b) 42 (c) 32 (d) 8
  21. 21.Which number is the odd one out: 37, 71, 97, 58? (a) 37 (b) 71 (c) 97 (d) 58
  22. 22.Which number is the odd one out: 2, 89, 97, 82? (a) 2 (b) 89 (c) 97 (d) 82
  23. 23.Which number is the odd one out: 61, 67, 19, 96? (a) 61 (b) 67 (c) 19 (d) 96
  24. 24.Which number is the odd one out: 6, 77, 66, 46? (a) 6 (b) 77 (c) 66 (d) 46
  25. 25.Which number is the odd one out: 10, 76, 95, 92? (a) 10 (b) 76 (c) 95 (d) 92
  26. 26.Which number is the odd one out: 23, 29, 53, 50? (a) 23 (b) 29 (c) 53 (d) 50
  27. 27.Which number is the odd one out: 95, 85, 72, 40? (a) 95 (b) 85 (c) 72 (d) 40
  28. 28.Which number is the odd one out: 19, 43, 40, 37? (a) 19 (b) 43 (c) 40 (d) 37
  29. 29.Which number is the odd one out: 30, 24, 60, 48? (a) 30 (b) 24 (c) 60 (d) 48
  30. 30.Which number is the odd one out: 73, 31, 78, 29? (a) 73 (b) 31 (c) 78 (d) 29
  31. 31.Which number is the odd one out: 24, 72, 45, 96? (a) 24 (b) 72 (c) 45 (d) 96
  32. 32.Which number is the odd one out: 11, 71, 80, 13? (a) 11 (b) 71 (c) 80 (d) 13
  33. 33.Which number is the odd one out: 43, 84, 17, 61? (a) 43 (b) 84 (c) 17 (d) 61
  34. 34.Which number is the odd one out: 19, 43, 70, 83? (a) 19 (b) 43 (c) 70 (d) 83
  35. 35.Which number is the odd one out: 21, 19, 61, 7? (a) 21 (b) 19 (c) 61 (d) 7
  36. 36.Which number is the odd one out: 51, 41, 19, 11? (a) 51 (b) 41 (c) 19 (d) 11
  37. 37.Which number is the odd one out: 47, 71, 29, 85? (a) 47 (b) 71 (c) 29 (d) 85
  38. 38.Which number is the odd one out: 19, 47, 53, 48? (a) 19 (b) 47 (c) 53 (d) 48
  39. 39.Which number is the odd one out: 96, 48, 32, 31? (a) 96 (b) 48 (c) 32 (d) 31
  40. 40.Which number is the odd one out: 17, 37, 9, 23? (a) 17 (b) 37 (c) 9 (d) 23

Answer key

  1. 15
  2. 30
  3. 63
  4. 48
  5. 10
  6. 6
  7. 21
  8. 32
  9. 80
  10. 92
  11. 56
  12. 19
  13. 68
  14. 21
  15. 32
  16. 78
  17. 96
  18. 9
  19. 15
  20. 42
  21. 58
  22. 82
  23. 96
  24. 77
  25. 95
  26. 50
  27. 72
  28. 40
  29. 30
  30. 78
  31. 45
  32. 80
  33. 84
  34. 70
  35. 21
  36. 51
  37. 85
  38. 48
  39. 31
  40. 9

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