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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 200 · 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: 15, 86, 82, 26? (a) 15 (b) 86 (c) 82 (d) 26
  2. 2.Which number is the odd one out: 4, 47, 13, 79? (a) 4 (b) 47 (c) 13 (d) 79
  3. 3.Which number is the odd one out: 13, 48, 2, 71? (a) 13 (b) 48 (c) 2 (d) 71
  4. 4.Which number is the odd one out: 31, 19, 9, 79? (a) 31 (b) 19 (c) 9 (d) 79
  5. 5.Which number is the odd one out: 19, 67, 55, 40? (a) 19 (b) 67 (c) 55 (d) 40
  6. 6.Which number is the odd one out: 61, 13, 42, 17? (a) 61 (b) 13 (c) 42 (d) 17
  7. 7.Which number is the odd one out: 17, 60, 5, 59? (a) 17 (b) 60 (c) 5 (d) 59
  8. 8.Which number is the odd one out: 24, 48, 66, 58? (a) 24 (b) 48 (c) 66 (d) 58
  9. 9.Which number is the odd one out: 16, 7, 64, 8? (a) 16 (b) 7 (c) 64 (d) 8
  10. 10.Which number is the odd one out: 64, 73, 2, 13? (a) 64 (b) 73 (c) 2 (d) 13
  11. 11.Which number is the odd one out: 67, 83, 11, 20? (a) 67 (b) 83 (c) 11 (d) 20
  12. 12.Which number is the odd one out: 88, 16, 14, 64? (a) 88 (b) 16 (c) 14 (d) 64
  13. 13.Which number is the odd one out: 84, 8, 96, 35? (a) 84 (b) 8 (c) 96 (d) 35
  14. 14.Which number is the odd one out: 2, 41, 34, 23? (a) 2 (b) 41 (c) 34 (d) 23
  15. 15.Which number is the odd one out: 79, 29, 43, 98? (a) 79 (b) 29 (c) 43 (d) 98
  16. 16.Which number is the odd one out: 3, 61, 59, 72? (a) 3 (b) 61 (c) 59 (d) 72
  17. 17.Which number is the odd one out: 5, 17, 55, 65? (a) 5 (b) 17 (c) 55 (d) 65
  18. 18.Which number is the odd one out: 37, 73, 88, 2? (a) 37 (b) 73 (c) 88 (d) 2
  19. 19.Which number is the odd one out: 73, 43, 53, 48? (a) 73 (b) 43 (c) 53 (d) 48
  20. 20.Which number is the odd one out: 14, 59, 89, 97? (a) 14 (b) 59 (c) 89 (d) 97
  21. 21.Which number is the odd one out: 67, 97, 79, 32? (a) 67 (b) 97 (c) 79 (d) 32
  22. 22.Which number is the odd one out: 18, 89, 54, 99? (a) 18 (b) 89 (c) 54 (d) 99
  23. 23.Which number is the odd one out: 19, 67, 53, 46? (a) 19 (b) 67 (c) 53 (d) 46
  24. 24.Which number is the odd one out: 44, 9, 40, 80? (a) 44 (b) 9 (c) 40 (d) 80
  25. 25.Which number is the odd one out: 83, 11, 47, 48? (a) 83 (b) 11 (c) 47 (d) 48
  26. 26.Which number is the odd one out: 31, 15, 89, 17? (a) 31 (b) 15 (c) 89 (d) 17
  27. 27.Which number is the odd one out: 13, 19, 17, 98? (a) 13 (b) 19 (c) 17 (d) 98
  28. 28.Which number is the odd one out: 79, 2, 43, 22? (a) 79 (b) 2 (c) 43 (d) 22
  29. 29.Which number is the odd one out: 19, 12, 13, 47? (a) 19 (b) 12 (c) 13 (d) 47
  30. 30.Which number is the odd one out: 24, 67, 59, 97? (a) 24 (b) 67 (c) 59 (d) 97
  31. 31.Which number is the odd one out: 79, 37, 97, 45? (a) 79 (b) 37 (c) 97 (d) 45
  32. 32.Which number is the odd one out: 61, 3, 23, 9? (a) 61 (b) 3 (c) 23 (d) 9
  33. 33.Which number is the odd one out: 73, 37, 22, 31? (a) 73 (b) 37 (c) 22 (d) 31
  34. 34.Which number is the odd one out: 57, 16, 4, 32? (a) 57 (b) 16 (c) 4 (d) 32
  35. 35.Which number is the odd one out: 74, 75, 32, 40? (a) 74 (b) 75 (c) 32 (d) 40
  36. 36.Which number is the odd one out: 47, 79, 59, 36? (a) 47 (b) 79 (c) 59 (d) 36
  37. 37.Which number is the odd one out: 57, 3, 37, 87? (a) 57 (b) 3 (c) 37 (d) 87
  38. 38.Which number is the odd one out: 47, 82, 89, 19? (a) 47 (b) 82 (c) 89 (d) 19
  39. 39.Which number is the odd one out: 68, 40, 80, 21? (a) 68 (b) 40 (c) 80 (d) 21
  40. 40.Which number is the odd one out: 44, 79, 83, 67? (a) 44 (b) 79 (c) 83 (d) 67

Answer key

  1. 15
  2. 4
  3. 48
  4. 9
  5. 40
  6. 42
  7. 60
  8. 58
  9. 7
  10. 64
  11. 20
  12. 14
  13. 35
  14. 34
  15. 98
  16. 72
  17. 17
  18. 88
  19. 48
  20. 14
  21. 32
  22. 89
  23. 46
  24. 9
  25. 48
  26. 15
  27. 98
  28. 22
  29. 12
  30. 24
  31. 45
  32. 9
  33. 22
  34. 57
  35. 75
  36. 36
  37. 37
  38. 82
  39. 21
  40. 44

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