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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 660 · 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: 68, 48, 24, 96? (a) 68 (b) 48 (c) 24 (d) 96
  2. 2.Which number is the odd one out: 74, 61, 31, 73? (a) 74 (b) 61 (c) 31 (d) 73
  3. 3.Which number is the odd one out: 2, 97, 8, 79? (a) 2 (b) 97 (c) 8 (d) 79
  4. 4.Which number is the odd one out: 47, 11, 72, 89? (a) 47 (b) 11 (c) 72 (d) 89
  5. 5.Which number is the odd one out: 71, 56, 89, 79? (a) 71 (b) 56 (c) 89 (d) 79
  6. 6.Which number is the odd one out: 3, 67, 87, 37? (a) 3 (b) 67 (c) 87 (d) 37
  7. 7.Which number is the odd one out: 27, 18, 30, 45? (a) 27 (b) 18 (c) 30 (d) 45
  8. 8.Which number is the odd one out: 15, 75, 69, 59? (a) 15 (b) 75 (c) 69 (d) 59
  9. 9.Which number is the odd one out: 65, 55, 12, 39? (a) 65 (b) 55 (c) 12 (d) 39
  10. 10.Which number is the odd one out: 20, 61, 41, 13? (a) 20 (b) 61 (c) 41 (d) 13
  11. 11.Which number is the odd one out: 24, 15, 35, 70? (a) 24 (b) 15 (c) 35 (d) 70
  12. 12.Which number is the odd one out: 20, 28, 14, 70? (a) 20 (b) 28 (c) 14 (d) 70
  13. 13.Which number is the odd one out: 54, 2, 83, 71? (a) 54 (b) 2 (c) 83 (d) 71
  14. 14.Which number is the odd one out: 89, 73, 10, 43? (a) 89 (b) 73 (c) 10 (d) 43
  15. 15.Which number is the odd one out: 14, 70, 15, 98? (a) 14 (b) 70 (c) 15 (d) 98
  16. 16.Which number is the odd one out: 37, 71, 67, 49? (a) 37 (b) 71 (c) 67 (d) 49
  17. 17.Which number is the odd one out: 25, 11, 13, 41? (a) 25 (b) 11 (c) 13 (d) 41
  18. 18.Which number is the odd one out: 70, 27, 35, 14? (a) 70 (b) 27 (c) 35 (d) 14
  19. 19.Which number is the odd one out: 13, 24, 71, 97? (a) 13 (b) 24 (c) 71 (d) 97
  20. 20.Which number is the odd one out: 27, 17, 67, 29? (a) 27 (b) 17 (c) 67 (d) 29
  21. 21.Which number is the odd one out: 2, 61, 6, 67? (a) 2 (b) 61 (c) 6 (d) 67
  22. 22.Which number is the odd one out: 17, 83, 65, 59? (a) 17 (b) 83 (c) 65 (d) 59
  23. 23.Which number is the odd one out: 97, 35, 61, 23? (a) 97 (b) 35 (c) 61 (d) 23
  24. 24.Which number is the odd one out: 61, 71, 86, 67? (a) 61 (b) 71 (c) 86 (d) 67
  25. 25.Which number is the odd one out: 13, 73, 2, 18? (a) 13 (b) 73 (c) 2 (d) 18
  26. 26.Which number is the odd one out: 73, 54, 37, 19? (a) 73 (b) 54 (c) 37 (d) 19
  27. 27.Which number is the odd one out: 86, 97, 37, 71? (a) 86 (b) 97 (c) 37 (d) 71
  28. 28.Which number is the odd one out: 19, 48, 8, 96? (a) 19 (b) 48 (c) 8 (d) 96
  29. 29.Which number is the odd one out: 19, 29, 50, 55? (a) 19 (b) 29 (c) 50 (d) 55
  30. 30.Which number is the odd one out: 13, 29, 86, 43? (a) 13 (b) 29 (c) 86 (d) 43
  31. 31.Which number is the odd one out: 14, 48, 24, 6? (a) 14 (b) 48 (c) 24 (d) 6
  32. 32.Which number is the odd one out: 31, 43, 64, 73? (a) 31 (b) 43 (c) 64 (d) 73
  33. 33.Which number is the odd one out: 10, 79, 19, 67? (a) 10 (b) 79 (c) 19 (d) 67
  34. 34.Which number is the odd one out: 24, 48, 37, 32? (a) 24 (b) 48 (c) 37 (d) 32
  35. 35.Which number is the odd one out: 11, 71, 99, 83? (a) 11 (b) 71 (c) 99 (d) 83
  36. 36.Which number is the odd one out: 24, 96, 88, 49? (a) 24 (b) 96 (c) 88 (d) 49
  37. 37.Which number is the odd one out: 54, 73, 72, 24? (a) 54 (b) 73 (c) 72 (d) 24
  38. 38.Which number is the odd one out: 12, 91, 48, 24? (a) 12 (b) 91 (c) 48 (d) 24
  39. 39.Which number is the odd one out: 58, 79, 31, 23? (a) 58 (b) 79 (c) 31 (d) 23
  40. 40.Which number is the odd one out: 31, 47, 32, 19? (a) 31 (b) 47 (c) 32 (d) 19

Answer key

  1. 68
  2. 74
  3. 8
  4. 72
  5. 56
  6. 87
  7. 30
  8. 59
  9. 12
  10. 20
  11. 24
  12. 20
  13. 54
  14. 10
  15. 15
  16. 49
  17. 25
  18. 27
  19. 24
  20. 27
  21. 6
  22. 65
  23. 35
  24. 86
  25. 18
  26. 54
  27. 86
  28. 19
  29. 50
  30. 86
  31. 14
  32. 64
  33. 10
  34. 37
  35. 99
  36. 49
  37. 73
  38. 91
  39. 58
  40. 32

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