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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 325 · 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: 67, 7, 2, 42? (a) 67 (b) 7 (c) 2 (d) 42
  2. 2.Which number is the odd one out: 79, 31, 77, 17? (a) 79 (b) 31 (c) 77 (d) 17
  3. 3.Which number is the odd one out: 43, 53, 23, 87? (a) 43 (b) 53 (c) 23 (d) 87
  4. 4.Which number is the odd one out: 53, 11, 42, 3? (a) 53 (b) 11 (c) 42 (d) 3
  5. 5.Which number is the odd one out: 19, 30, 13, 97? (a) 19 (b) 30 (c) 13 (d) 97
  6. 6.Which number is the odd one out: 72, 25, 45, 48? (a) 72 (b) 25 (c) 45 (d) 48
  7. 7.Which number is the odd one out: 30, 42, 7, 10? (a) 30 (b) 42 (c) 7 (d) 10
  8. 8.Which number is the odd one out: 32, 23, 67, 89? (a) 32 (b) 23 (c) 67 (d) 89
  9. 9.Which number is the odd one out: 36, 43, 41, 27? (a) 36 (b) 43 (c) 41 (d) 27
  10. 10.Which number is the odd one out: 97, 41, 73, 54? (a) 97 (b) 41 (c) 73 (d) 54
  11. 11.Which number is the odd one out: 66, 53, 37, 11? (a) 66 (b) 53 (c) 37 (d) 11
  12. 12.Which number is the odd one out: 37, 74, 41, 11? (a) 37 (b) 74 (c) 41 (d) 11
  13. 13.Which number is the odd one out: 45, 36, 95, 20? (a) 45 (b) 36 (c) 95 (d) 20
  14. 14.Which number is the odd one out: 68, 43, 61, 59? (a) 68 (b) 43 (c) 61 (d) 59
  15. 15.Which number is the odd one out: 7, 37, 28, 43? (a) 7 (b) 37 (c) 28 (d) 43
  16. 16.Which number is the odd one out: 6, 30, 75, 15? (a) 6 (b) 30 (c) 75 (d) 15
  17. 17.Which number is the odd one out: 58, 3, 61, 93? (a) 58 (b) 3 (c) 61 (d) 93
  18. 18.Which number is the odd one out: 96, 19, 13, 17? (a) 96 (b) 19 (c) 13 (d) 17
  19. 19.Which number is the odd one out: 18, 54, 6, 88? (a) 18 (b) 54 (c) 6 (d) 88
  20. 20.Which number is the odd one out: 16, 4, 26, 64? (a) 16 (b) 4 (c) 26 (d) 64
  21. 21.Which number is the odd one out: 59, 51, 37, 19? (a) 59 (b) 51 (c) 37 (d) 19
  22. 22.Which number is the odd one out: 93, 8, 16, 64? (a) 93 (b) 8 (c) 16 (d) 64
  23. 23.Which number is the odd one out: 73, 61, 76, 47? (a) 73 (b) 61 (c) 76 (d) 47
  24. 24.Which number is the odd one out: 54, 24, 16, 64? (a) 54 (b) 24 (c) 16 (d) 64
  25. 25.Which number is the odd one out: 26, 86, 46, 87? (a) 26 (b) 86 (c) 46 (d) 87
  26. 26.Which number is the odd one out: 11, 73, 43, 87? (a) 11 (b) 73 (c) 43 (d) 87
  27. 27.Which number is the odd one out: 71, 97, 66, 59? (a) 71 (b) 97 (c) 66 (d) 59
  28. 28.Which number is the odd one out: 19, 23, 76, 2? (a) 19 (b) 23 (c) 76 (d) 2
  29. 29.Which number is the odd one out: 23, 81, 31, 47? (a) 23 (b) 81 (c) 31 (d) 47
  30. 30.Which number is the odd one out: 42, 24, 63, 72? (a) 42 (b) 24 (c) 63 (d) 72
  31. 31.Which number is the odd one out: 34, 61, 2, 38? (a) 34 (b) 61 (c) 2 (d) 38
  32. 32.Which number is the odd one out: 28, 67, 39, 3? (a) 28 (b) 67 (c) 39 (d) 3
  33. 33.Which number is the odd one out: 60, 79, 67, 55? (a) 60 (b) 79 (c) 67 (d) 55
  34. 34.Which number is the odd one out: 66, 6, 78, 20? (a) 66 (b) 6 (c) 78 (d) 20
  35. 35.Which number is the odd one out: 16, 49, 56, 8? (a) 16 (b) 49 (c) 56 (d) 8
  36. 36.Which number is the odd one out: 71, 37, 91, 19? (a) 71 (b) 37 (c) 91 (d) 19
  37. 37.Which number is the odd one out: 9, 6, 72, 48? (a) 9 (b) 6 (c) 72 (d) 48
  38. 38.Which number is the odd one out: 48, 10, 18, 72? (a) 48 (b) 10 (c) 18 (d) 72
  39. 39.Which number is the odd one out: 89, 31, 54, 23? (a) 89 (b) 31 (c) 54 (d) 23
  40. 40.Which number is the odd one out: 61, 82, 19, 59? (a) 61 (b) 82 (c) 19 (d) 59

Answer key

  1. 42
  2. 77
  3. 87
  4. 42
  5. 30
  6. 25
  7. 7
  8. 32
  9. 36
  10. 54
  11. 66
  12. 74
  13. 36
  14. 68
  15. 28
  16. 6
  17. 58
  18. 96
  19. 88
  20. 26
  21. 51
  22. 93
  23. 76
  24. 54
  25. 87
  26. 87
  27. 66
  28. 76
  29. 81
  30. 63
  31. 61
  32. 28
  33. 60
  34. 20
  35. 49
  36. 91
  37. 9
  38. 10
  39. 54
  40. 82

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