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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 514 · 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: 90, 17, 65, 97? (a) 90 (b) 17 (c) 65 (d) 97
  2. 2.Which number is the odd one out: 32, 31, 83, 53? (a) 32 (b) 31 (c) 83 (d) 53
  3. 3.Which number is the odd one out: 98, 14, 15, 77? (a) 98 (b) 14 (c) 15 (d) 77
  4. 4.Which number is the odd one out: 4, 80, 81, 40? (a) 4 (b) 80 (c) 81 (d) 40
  5. 5.Which number is the odd one out: 5, 35, 91, 7? (a) 5 (b) 35 (c) 91 (d) 7
  6. 6.Which number is the odd one out: 17, 2, 8, 29? (a) 17 (b) 2 (c) 8 (d) 29
  7. 7.Which number is the odd one out: 24, 48, 50, 32? (a) 24 (b) 48 (c) 50 (d) 32
  8. 8.Which number is the odd one out: 8, 63, 64, 16? (a) 8 (b) 63 (c) 64 (d) 16
  9. 9.Which number is the odd one out: 54, 37, 79, 39? (a) 54 (b) 37 (c) 79 (d) 39
  10. 10.Which number is the odd one out: 70, 56, 96, 48? (a) 70 (b) 56 (c) 96 (d) 48
  11. 11.Which number is the odd one out: 5, 43, 42, 15? (a) 5 (b) 43 (c) 42 (d) 15
  12. 12.Which number is the odd one out: 79, 19, 89, 33? (a) 79 (b) 19 (c) 89 (d) 33
  13. 13.Which number is the odd one out: 86, 26, 25, 38? (a) 86 (b) 26 (c) 25 (d) 38
  14. 14.Which number is the odd one out: 87, 59, 89, 97? (a) 87 (b) 59 (c) 89 (d) 97
  15. 15.Which number is the odd one out: 61, 59, 39, 6? (a) 61 (b) 59 (c) 39 (d) 6
  16. 16.Which number is the odd one out: 89, 43, 41, 4? (a) 89 (b) 43 (c) 41 (d) 4
  17. 17.Which number is the odd one out: 37, 16, 83, 97? (a) 37 (b) 16 (c) 83 (d) 97
  18. 18.Which number is the odd one out: 12, 10, 42, 84? (a) 12 (b) 10 (c) 42 (d) 84
  19. 19.Which number is the odd one out: 13, 80, 61, 53? (a) 13 (b) 80 (c) 61 (d) 53
  20. 20.Which number is the odd one out: 31, 71, 67, 12? (a) 31 (b) 71 (c) 67 (d) 12
  21. 21.Which number is the odd one out: 29, 83, 39, 43? (a) 29 (b) 83 (c) 39 (d) 43
  22. 22.Which number is the odd one out: 36, 63, 28, 49? (a) 36 (b) 63 (c) 28 (d) 49
  23. 23.Which number is the odd one out: 3, 37, 32, 93? (a) 3 (b) 37 (c) 32 (d) 93
  24. 24.Which number is the odd one out: 35, 14, 70, 57? (a) 35 (b) 14 (c) 70 (d) 57
  25. 25.Which number is the odd one out: 13, 29, 19, 48? (a) 13 (b) 29 (c) 19 (d) 48
  26. 26.Which number is the odd one out: 26, 45, 22, 74? (a) 26 (b) 45 (c) 22 (d) 74
  27. 27.Which number is the odd one out: 75, 5, 73, 29? (a) 75 (b) 5 (c) 73 (d) 29
  28. 28.Which number is the odd one out: 39, 8, 32, 88? (a) 39 (b) 8 (c) 32 (d) 88
  29. 29.Which number is the odd one out: 41, 53, 90, 71? (a) 41 (b) 53 (c) 90 (d) 71
  30. 30.Which number is the odd one out: 16, 31, 23, 71? (a) 16 (b) 31 (c) 23 (d) 71
  31. 31.Which number is the odd one out: 13, 65, 61, 90? (a) 13 (b) 65 (c) 61 (d) 90
  32. 32.Which number is the odd one out: 67, 89, 73, 49? (a) 67 (b) 89 (c) 73 (d) 49
  33. 33.Which number is the odd one out: 12, 47, 11, 31? (a) 12 (b) 47 (c) 11 (d) 31
  34. 34.Which number is the odd one out: 19, 61, 95, 17? (a) 19 (b) 61 (c) 95 (d) 17
  35. 35.Which number is the odd one out: 37, 21, 71, 29? (a) 37 (b) 21 (c) 71 (d) 29
  36. 36.Which number is the odd one out: 60, 2, 47, 67? (a) 60 (b) 2 (c) 47 (d) 67
  37. 37.Which number is the odd one out: 3, 41, 61, 84? (a) 3 (b) 41 (c) 61 (d) 84
  38. 38.Which number is the odd one out: 85, 5, 41, 59? (a) 85 (b) 5 (c) 41 (d) 59
  39. 39.Which number is the odd one out: 64, 16, 75, 25? (a) 64 (b) 16 (c) 75 (d) 25
  40. 40.Which number is the odd one out: 67, 29, 61, 30? (a) 67 (b) 29 (c) 61 (d) 30

Answer key

  1. 90
  2. 32
  3. 15
  4. 81
  5. 5
  6. 8
  7. 50
  8. 63
  9. 54
  10. 70
  11. 42
  12. 33
  13. 25
  14. 87
  15. 6
  16. 4
  17. 16
  18. 10
  19. 80
  20. 12
  21. 39
  22. 36
  23. 32
  24. 57
  25. 48
  26. 45
  27. 75
  28. 39
  29. 90
  30. 16
  31. 90
  32. 49
  33. 12
  34. 95
  35. 21
  36. 60
  37. 84
  38. 85
  39. 75
  40. 30

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