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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 873 · 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: 19, 38, 13, 71? (a) 19 (b) 38 (c) 13 (d) 71
  2. 2.Which number is the odd one out: 63, 80, 75, 40? (a) 63 (b) 80 (c) 75 (d) 40
  3. 3.Which number is the odd one out: 53, 24, 13, 71? (a) 53 (b) 24 (c) 13 (d) 71
  4. 4.Which number is the odd one out: 16, 49, 64, 63? (a) 16 (b) 49 (c) 64 (d) 63
  5. 5.Which number is the odd one out: 48, 24, 41, 44? (a) 48 (b) 24 (c) 41 (d) 44
  6. 6.Which number is the odd one out: 71, 61, 23, 90? (a) 71 (b) 61 (c) 23 (d) 90
  7. 7.Which number is the odd one out: 34, 9, 81, 93? (a) 34 (b) 9 (c) 81 (d) 93
  8. 8.Which number is the odd one out: 10, 17, 29, 95? (a) 10 (b) 17 (c) 29 (d) 95
  9. 9.Which number is the odd one out: 2, 73, 43, 34? (a) 2 (b) 73 (c) 43 (d) 34
  10. 10.Which number is the odd one out: 2, 62, 29, 23? (a) 2 (b) 62 (c) 29 (d) 23
  11. 11.Which number is the odd one out: 83, 47, 19, 4? (a) 83 (b) 47 (c) 19 (d) 4
  12. 12.Which number is the odd one out: 14, 83, 37, 89? (a) 14 (b) 83 (c) 37 (d) 89
  13. 13.Which number is the odd one out: 31, 71, 87, 43? (a) 31 (b) 71 (c) 87 (d) 43
  14. 14.Which number is the odd one out: 30, 19, 5, 73? (a) 30 (b) 19 (c) 5 (d) 73
  15. 15.Which number is the odd one out: 10, 60, 20, 42? (a) 10 (b) 60 (c) 20 (d) 42
  16. 16.Which number is the odd one out: 79, 52, 41, 83? (a) 79 (b) 52 (c) 41 (d) 83
  17. 17.Which number is the odd one out: 37, 17, 42, 7? (a) 37 (b) 17 (c) 42 (d) 7
  18. 18.Which number is the odd one out: 17, 69, 90, 71? (a) 17 (b) 69 (c) 90 (d) 71
  19. 19.Which number is the odd one out: 79, 53, 14, 61? (a) 79 (b) 53 (c) 14 (d) 61
  20. 20.Which number is the odd one out: 73, 66, 13, 19? (a) 73 (b) 66 (c) 13 (d) 19
  21. 21.Which number is the odd one out: 90, 63, 77, 91? (a) 90 (b) 63 (c) 77 (d) 91
  22. 22.Which number is the odd one out: 55, 47, 13, 5? (a) 55 (b) 47 (c) 13 (d) 5
  23. 23.Which number is the odd one out: 38, 22, 61, 82? (a) 38 (b) 22 (c) 61 (d) 82
  24. 24.Which number is the odd one out: 76, 43, 29, 2? (a) 76 (b) 43 (c) 29 (d) 2
  25. 25.Which number is the odd one out: 63, 99, 27, 98? (a) 63 (b) 99 (c) 27 (d) 98
  26. 26.Which number is the odd one out: 31, 67, 48, 73? (a) 31 (b) 67 (c) 48 (d) 73
  27. 27.Which number is the odd one out: 12, 84, 77, 52? (a) 12 (b) 84 (c) 77 (d) 52
  28. 28.Which number is the odd one out: 70, 24, 96, 48? (a) 70 (b) 24 (c) 96 (d) 48
  29. 29.Which number is the odd one out: 89, 75, 11, 73? (a) 89 (b) 75 (c) 11 (d) 73
  30. 30.Which number is the odd one out: 37, 45, 13, 97? (a) 37 (b) 45 (c) 13 (d) 97
  31. 31.Which number is the odd one out: 41, 11, 24, 71? (a) 41 (b) 11 (c) 24 (d) 71
  32. 32.Which number is the odd one out: 88, 32, 60, 40? (a) 88 (b) 32 (c) 60 (d) 40
  33. 33.Which number is the odd one out: 82, 5, 38, 34? (a) 82 (b) 5 (c) 38 (d) 34
  34. 34.Which number is the odd one out: 53, 59, 19, 66? (a) 53 (b) 59 (c) 19 (d) 66
  35. 35.Which number is the odd one out: 31, 57, 37, 54? (a) 31 (b) 57 (c) 37 (d) 54
  36. 36.Which number is the odd one out: 45, 24, 48, 60? (a) 45 (b) 24 (c) 48 (d) 60
  37. 37.Which number is the odd one out: 73, 9, 29, 36? (a) 73 (b) 9 (c) 29 (d) 36
  38. 38.Which number is the odd one out: 14, 60, 91, 21? (a) 14 (b) 60 (c) 91 (d) 21
  39. 39.Which number is the odd one out: 13, 59, 22, 29? (a) 13 (b) 59 (c) 22 (d) 29
  40. 40.Which number is the odd one out: 63, 64, 4, 16? (a) 63 (b) 64 (c) 4 (d) 16

Answer key

  1. 38
  2. 63
  3. 24
  4. 63
  5. 41
  6. 90
  7. 34
  8. 10
  9. 34
  10. 62
  11. 4
  12. 14
  13. 87
  14. 30
  15. 42
  16. 52
  17. 42
  18. 90
  19. 14
  20. 66
  21. 90
  22. 55
  23. 61
  24. 76
  25. 98
  26. 48
  27. 77
  28. 70
  29. 75
  30. 45
  31. 24
  32. 60
  33. 5
  34. 66
  35. 54
  36. 45
  37. 36
  38. 60
  39. 22
  40. 63

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