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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 670 · 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: 40, 13, 67, 83? (a) 40 (b) 13 (c) 67 (d) 83
  2. 2.Which number is the odd one out: 96, 24, 36, 48? (a) 96 (b) 24 (c) 36 (d) 48
  3. 3.Which number is the odd one out: 18, 99, 75, 90? (a) 18 (b) 99 (c) 75 (d) 90
  4. 4.Which number is the odd one out: 11, 23, 52, 61? (a) 11 (b) 23 (c) 52 (d) 61
  5. 5.Which number is the odd one out: 83, 17, 12, 43? (a) 83 (b) 17 (c) 12 (d) 43
  6. 6.Which number is the odd one out: 53, 41, 89, 6? (a) 53 (b) 41 (c) 89 (d) 6
  7. 7.Which number is the odd one out: 59, 65, 71, 29? (a) 59 (b) 65 (c) 71 (d) 29
  8. 8.Which number is the odd one out: 97, 59, 42, 43? (a) 97 (b) 59 (c) 42 (d) 43
  9. 9.Which number is the odd one out: 87, 29, 31, 59? (a) 87 (b) 29 (c) 31 (d) 59
  10. 10.Which number is the odd one out: 41, 43, 37, 36? (a) 41 (b) 43 (c) 37 (d) 36
  11. 11.Which number is the odd one out: 47, 26, 17, 23? (a) 47 (b) 26 (c) 17 (d) 23
  12. 12.Which number is the odd one out: 79, 37, 87, 97? (a) 79 (b) 37 (c) 87 (d) 97
  13. 13.Which number is the odd one out: 2, 66, 73, 47? (a) 2 (b) 66 (c) 73 (d) 47
  14. 14.Which number is the odd one out: 80, 65, 71, 40? (a) 80 (b) 65 (c) 71 (d) 40
  15. 15.Which number is the odd one out: 12, 79, 24, 48? (a) 12 (b) 79 (c) 24 (d) 48
  16. 16.Which number is the odd one out: 13, 4, 89, 19? (a) 13 (b) 4 (c) 89 (d) 19
  17. 17.Which number is the odd one out: 3, 67, 21, 71? (a) 3 (b) 67 (c) 21 (d) 71
  18. 18.Which number is the odd one out: 72, 47, 37, 41? (a) 72 (b) 47 (c) 37 (d) 41
  19. 19.Which number is the odd one out: 31, 64, 13, 17? (a) 31 (b) 64 (c) 13 (d) 17
  20. 20.Which number is the odd one out: 79, 31, 69, 13? (a) 79 (b) 31 (c) 69 (d) 13
  21. 21.Which number is the odd one out: 29, 50, 53, 19? (a) 29 (b) 50 (c) 53 (d) 19
  22. 22.Which number is the odd one out: 90, 54, 74, 30? (a) 90 (b) 54 (c) 74 (d) 30
  23. 23.Which number is the odd one out: 67, 34, 61, 13? (a) 67 (b) 34 (c) 61 (d) 13
  24. 24.Which number is the odd one out: 19, 57, 59, 3? (a) 19 (b) 57 (c) 59 (d) 3
  25. 25.Which number is the odd one out: 24, 8, 48, 25? (a) 24 (b) 8 (c) 48 (d) 25
  26. 26.Which number is the odd one out: 81, 99, 9, 92? (a) 81 (b) 99 (c) 9 (d) 92
  27. 27.Which number is the odd one out: 64, 29, 67, 23? (a) 64 (b) 29 (c) 67 (d) 23
  28. 28.Which number is the odd one out: 19, 3, 69, 89? (a) 19 (b) 3 (c) 69 (d) 89
  29. 29.Which number is the odd one out: 43, 56, 41, 31? (a) 43 (b) 56 (c) 41 (d) 31
  30. 30.Which number is the odd one out: 15, 61, 17, 43? (a) 15 (b) 61 (c) 17 (d) 43
  31. 31.Which number is the odd one out: 18, 11, 61, 17? (a) 18 (b) 11 (c) 61 (d) 17
  32. 32.Which number is the odd one out: 99, 27, 94, 39? (a) 99 (b) 27 (c) 94 (d) 39
  33. 33.Which number is the odd one out: 37, 73, 51, 48? (a) 37 (b) 73 (c) 51 (d) 48
  34. 34.Which number is the odd one out: 51, 19, 3, 26? (a) 51 (b) 19 (c) 3 (d) 26
  35. 35.Which number is the odd one out: 68, 2, 53, 47? (a) 68 (b) 2 (c) 53 (d) 47
  36. 36.Which number is the odd one out: 79, 2, 17, 32? (a) 79 (b) 2 (c) 17 (d) 32
  37. 37.Which number is the odd one out: 15, 51, 16, 75? (a) 15 (b) 51 (c) 16 (d) 75
  38. 38.Which number is the odd one out: 73, 31, 29, 91? (a) 73 (b) 31 (c) 29 (d) 91
  39. 39.Which number is the odd one out: 27, 32, 80, 40? (a) 27 (b) 32 (c) 80 (d) 40
  40. 40.Which number is the odd one out: 52, 80, 16, 25? (a) 52 (b) 80 (c) 16 (d) 25

Answer key

  1. 40
  2. 36
  3. 75
  4. 52
  5. 12
  6. 6
  7. 65
  8. 42
  9. 87
  10. 36
  11. 26
  12. 87
  13. 66
  14. 71
  15. 79
  16. 4
  17. 21
  18. 72
  19. 64
  20. 69
  21. 50
  22. 74
  23. 34
  24. 57
  25. 25
  26. 92
  27. 64
  28. 69
  29. 56
  30. 15
  31. 18
  32. 94
  33. 48
  34. 26
  35. 68
  36. 32
  37. 16
  38. 91
  39. 27
  40. 25

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