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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 444 · 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, 25, 13, 5? (a) 19 (b) 25 (c) 13 (d) 5
  2. 2.Which number is the odd one out: 48, 16, 64, 84? (a) 48 (b) 16 (c) 64 (d) 84
  3. 3.Which number is the odd one out: 61, 13, 56, 31? (a) 61 (b) 13 (c) 56 (d) 31
  4. 4.Which number is the odd one out: 61, 89, 50, 43? (a) 61 (b) 89 (c) 50 (d) 43
  5. 5.Which number is the odd one out: 11, 59, 89, 8? (a) 11 (b) 59 (c) 89 (d) 8
  6. 6.Which number is the odd one out: 16, 64, 55, 92? (a) 16 (b) 64 (c) 55 (d) 92
  7. 7.Which number is the odd one out: 70, 35, 85, 52? (a) 70 (b) 35 (c) 85 (d) 52
  8. 8.Which number is the odd one out: 6, 79, 71, 17? (a) 6 (b) 79 (c) 71 (d) 17
  9. 9.Which number is the odd one out: 41, 3, 12, 29? (a) 41 (b) 3 (c) 12 (d) 29
  10. 10.Which number is the odd one out: 9, 12, 27, 36? (a) 9 (b) 12 (c) 27 (d) 36
  11. 11.Which number is the odd one out: 24, 8, 48, 91? (a) 24 (b) 8 (c) 48 (d) 91
  12. 12.Which number is the odd one out: 16, 64, 4, 37? (a) 16 (b) 64 (c) 4 (d) 37
  13. 13.Which number is the odd one out: 96, 88, 7, 48? (a) 96 (b) 88 (c) 7 (d) 48
  14. 14.Which number is the odd one out: 19, 6, 3, 2? (a) 19 (b) 6 (c) 3 (d) 2
  15. 15.Which number is the odd one out: 13, 27, 89, 17? (a) 13 (b) 27 (c) 89 (d) 17
  16. 16.Which number is the odd one out: 50, 94, 65, 26? (a) 50 (b) 94 (c) 65 (d) 26
  17. 17.Which number is the odd one out: 73, 61, 7, 42? (a) 73 (b) 61 (c) 7 (d) 42
  18. 18.Which number is the odd one out: 17, 73, 20, 67? (a) 17 (b) 73 (c) 20 (d) 67
  19. 19.Which number is the odd one out: 13, 46, 29, 17? (a) 13 (b) 46 (c) 29 (d) 17
  20. 20.Which number is the odd one out: 23, 59, 88, 31? (a) 23 (b) 59 (c) 88 (d) 31
  21. 21.Which number is the odd one out: 3, 59, 36, 43? (a) 3 (b) 59 (c) 36 (d) 43
  22. 22.Which number is the odd one out: 64, 16, 25, 85? (a) 64 (b) 16 (c) 25 (d) 85
  23. 23.Which number is the odd one out: 5, 61, 40, 37? (a) 5 (b) 61 (c) 40 (d) 37
  24. 24.Which number is the odd one out: 61, 97, 83, 22? (a) 61 (b) 97 (c) 83 (d) 22
  25. 25.Which number is the odd one out: 67, 10, 89, 29? (a) 67 (b) 10 (c) 89 (d) 29
  26. 26.Which number is the odd one out: 41, 59, 32, 47? (a) 41 (b) 59 (c) 32 (d) 47
  27. 27.Which number is the odd one out: 55, 96, 24, 8? (a) 55 (b) 96 (c) 24 (d) 8
  28. 28.Which number is the odd one out: 97, 17, 96, 61? (a) 97 (b) 17 (c) 96 (d) 61
  29. 29.Which number is the odd one out: 71, 11, 3, 75? (a) 71 (b) 11 (c) 3 (d) 75
  30. 30.Which number is the odd one out: 88, 90, 8, 40? (a) 88 (b) 90 (c) 8 (d) 40
  31. 31.Which number is the odd one out: 83, 41, 10, 67? (a) 83 (b) 41 (c) 10 (d) 67
  32. 32.Which number is the odd one out: 72, 48, 54, 34? (a) 72 (b) 48 (c) 54 (d) 34
  33. 33.Which number is the odd one out: 56, 88, 68, 49? (a) 56 (b) 88 (c) 68 (d) 49
  34. 34.Which number is the odd one out: 73, 53, 54, 37? (a) 73 (b) 53 (c) 54 (d) 37
  35. 35.Which number is the odd one out: 88, 21, 28, 32? (a) 88 (b) 21 (c) 28 (d) 32
  36. 36.Which number is the odd one out: 43, 83, 17, 38? (a) 43 (b) 83 (c) 17 (d) 38
  37. 37.Which number is the odd one out: 17, 58, 82, 86? (a) 17 (b) 58 (c) 82 (d) 86
  38. 38.Which number is the odd one out: 38, 39, 58, 26? (a) 38 (b) 39 (c) 58 (d) 26
  39. 39.Which number is the odd one out: 67, 57, 11, 41? (a) 67 (b) 57 (c) 11 (d) 41
  40. 40.Which number is the odd one out: 17, 84, 61, 13? (a) 17 (b) 84 (c) 61 (d) 13

Answer key

  1. 25
  2. 84
  3. 56
  4. 50
  5. 8
  6. 55
  7. 52
  8. 6
  9. 12
  10. 12
  11. 91
  12. 37
  13. 7
  14. 6
  15. 27
  16. 65
  17. 42
  18. 20
  19. 46
  20. 88
  21. 36
  22. 85
  23. 40
  24. 22
  25. 10
  26. 32
  27. 55
  28. 96
  29. 75
  30. 90
  31. 10
  32. 34
  33. 49
  34. 54
  35. 21
  36. 38
  37. 17
  38. 39
  39. 57
  40. 84

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