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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 594 · 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: 28, 2, 73, 41? (a) 28 (b) 2 (c) 73 (d) 41
  2. 2.Which number is the odd one out: 80, 19, 59, 17? (a) 80 (b) 19 (c) 59 (d) 17
  3. 3.Which number is the odd one out: 10, 79, 60, 12? (a) 10 (b) 79 (c) 60 (d) 12
  4. 4.Which number is the odd one out: 4, 2, 83, 29? (a) 4 (b) 2 (c) 83 (d) 29
  5. 5.Which number is the odd one out: 37, 93, 6, 89? (a) 37 (b) 93 (c) 6 (d) 89
  6. 6.Which number is the odd one out: 65, 55, 73, 5? (a) 65 (b) 55 (c) 73 (d) 5
  7. 7.Which number is the odd one out: 99, 81, 23, 9? (a) 99 (b) 81 (c) 23 (d) 9
  8. 8.Which number is the odd one out: 39, 29, 67, 61? (a) 39 (b) 29 (c) 67 (d) 61
  9. 9.Which number is the odd one out: 17, 29, 89, 26? (a) 17 (b) 29 (c) 89 (d) 26
  10. 10.Which number is the odd one out: 23, 44, 89, 53? (a) 23 (b) 44 (c) 89 (d) 53
  11. 11.Which number is the odd one out: 5, 27, 90, 54? (a) 5 (b) 27 (c) 90 (d) 54
  12. 12.Which number is the odd one out: 71, 37, 83, 50? (a) 71 (b) 37 (c) 83 (d) 50
  13. 13.Which number is the odd one out: 65, 97, 5, 83? (a) 65 (b) 97 (c) 5 (d) 83
  14. 14.Which number is the odd one out: 23, 2, 67, 71? (a) 23 (b) 2 (c) 67 (d) 71
  15. 15.Which number is the odd one out: 2, 24, 88, 12? (a) 2 (b) 24 (c) 88 (d) 12
  16. 16.Which number is the odd one out: 79, 42, 39, 17? (a) 79 (b) 42 (c) 39 (d) 17
  17. 17.Which number is the odd one out: 73, 11, 41, 74? (a) 73 (b) 11 (c) 41 (d) 74
  18. 18.Which number is the odd one out: 64, 16, 8, 77? (a) 64 (b) 16 (c) 8 (d) 77
  19. 19.Which number is the odd one out: 48, 67, 3, 23? (a) 48 (b) 67 (c) 3 (d) 23
  20. 20.Which number is the odd one out: 64, 19, 89, 37? (a) 64 (b) 19 (c) 89 (d) 37
  21. 21.Which number is the odd one out: 66, 78, 99, 6? (a) 66 (b) 78 (c) 99 (d) 6
  22. 22.Which number is the odd one out: 42, 43, 47, 83? (a) 42 (b) 43 (c) 47 (d) 83
  23. 23.Which number is the odd one out: 53, 17, 47, 63? (a) 53 (b) 17 (c) 47 (d) 63
  24. 24.Which number is the odd one out: 3, 53, 93, 87? (a) 3 (b) 53 (c) 93 (d) 87
  25. 25.Which number is the odd one out: 34, 61, 53, 43? (a) 34 (b) 61 (c) 53 (d) 43
  26. 26.Which number is the odd one out: 61, 53, 18, 17? (a) 61 (b) 53 (c) 18 (d) 17
  27. 27.Which number is the odd one out: 74, 97, 89, 71? (a) 74 (b) 97 (c) 89 (d) 71
  28. 28.Which number is the odd one out: 98, 14, 77, 45? (a) 98 (b) 14 (c) 77 (d) 45
  29. 29.Which number is the odd one out: 38, 59, 13, 47? (a) 38 (b) 59 (c) 13 (d) 47
  30. 30.Which number is the odd one out: 16, 68, 97, 64? (a) 16 (b) 68 (c) 97 (d) 64
  31. 31.Which number is the odd one out: 14, 70, 45, 63? (a) 14 (b) 70 (c) 45 (d) 63
  32. 32.Which number is the odd one out: 43, 71, 14, 67? (a) 43 (b) 71 (c) 14 (d) 67
  33. 33.Which number is the odd one out: 21, 7, 83, 11? (a) 21 (b) 7 (c) 83 (d) 11
  34. 34.Which number is the odd one out: 53, 97, 41, 90? (a) 53 (b) 97 (c) 41 (d) 90
  35. 35.Which number is the odd one out: 83, 20, 53, 17? (a) 83 (b) 20 (c) 53 (d) 17
  36. 36.Which number is the odd one out: 47, 59, 19, 27? (a) 47 (b) 59 (c) 19 (d) 27
  37. 37.Which number is the odd one out: 67, 3, 60, 47? (a) 67 (b) 3 (c) 60 (d) 47
  38. 38.Which number is the odd one out: 41, 68, 67, 19? (a) 41 (b) 68 (c) 67 (d) 19
  39. 39.Which number is the odd one out: 43, 97, 23, 46? (a) 43 (b) 97 (c) 23 (d) 46
  40. 40.Which number is the odd one out: 54, 18, 40, 72? (a) 54 (b) 18 (c) 40 (d) 72

Answer key

  1. 28
  2. 80
  3. 79
  4. 4
  5. 6
  6. 73
  7. 23
  8. 39
  9. 26
  10. 44
  11. 5
  12. 50
  13. 65
  14. 2
  15. 2
  16. 42
  17. 74
  18. 77
  19. 48
  20. 64
  21. 99
  22. 42
  23. 63
  24. 53
  25. 34
  26. 18
  27. 74
  28. 45
  29. 38
  30. 97
  31. 45
  32. 14
  33. 21
  34. 90
  35. 20
  36. 27
  37. 60
  38. 68
  39. 46
  40. 40

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