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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 770 · 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: 56, 80, 14, 70? (a) 56 (b) 80 (c) 14 (d) 70
  2. 2.Which number is the odd one out: 41, 2, 62, 73? (a) 41 (b) 2 (c) 62 (d) 73
  3. 3.Which number is the odd one out: 79, 80, 88, 20? (a) 79 (b) 80 (c) 88 (d) 20
  4. 4.Which number is the odd one out: 95, 89, 41, 17? (a) 95 (b) 89 (c) 41 (d) 17
  5. 5.Which number is the odd one out: 31, 5, 20, 19? (a) 31 (b) 5 (c) 20 (d) 19
  6. 6.Which number is the odd one out: 61, 89, 29, 22? (a) 61 (b) 89 (c) 29 (d) 22
  7. 7.Which number is the odd one out: 6, 66, 88, 96? (a) 6 (b) 66 (c) 88 (d) 96
  8. 8.Which number is the odd one out: 96, 24, 9, 66? (a) 96 (b) 24 (c) 9 (d) 66
  9. 9.Which number is the odd one out: 97, 11, 9, 29? (a) 97 (b) 11 (c) 9 (d) 29
  10. 10.Which number is the odd one out: 27, 67, 73, 61? (a) 27 (b) 67 (c) 73 (d) 61
  11. 11.Which number is the odd one out: 42, 88, 8, 24? (a) 42 (b) 88 (c) 8 (d) 24
  12. 12.Which number is the odd one out: 17, 29, 86, 47? (a) 17 (b) 29 (c) 86 (d) 47
  13. 13.Which number is the odd one out: 17, 13, 2, 6? (a) 17 (b) 13 (c) 2 (d) 6
  14. 14.Which number is the odd one out: 69, 13, 19, 73? (a) 69 (b) 13 (c) 19 (d) 73
  15. 15.Which number is the odd one out: 36, 24, 72, 4? (a) 36 (b) 24 (c) 72 (d) 4
  16. 16.Which number is the odd one out: 20, 8, 40, 6? (a) 20 (b) 8 (c) 40 (d) 6
  17. 17.Which number is the odd one out: 8, 59, 24, 12? (a) 8 (b) 59 (c) 24 (d) 12
  18. 18.Which number is the odd one out: 13, 20, 2, 43? (a) 13 (b) 20 (c) 2 (d) 43
  19. 19.Which number is the odd one out: 67, 23, 41, 62? (a) 67 (b) 23 (c) 41 (d) 62
  20. 20.Which number is the odd one out: 96, 11, 48, 8? (a) 96 (b) 11 (c) 48 (d) 8
  21. 21.Which number is the odd one out: 96, 24, 88, 73? (a) 96 (b) 24 (c) 88 (d) 73
  22. 22.Which number is the odd one out: 39, 33, 93, 80? (a) 39 (b) 33 (c) 93 (d) 80
  23. 23.Which number is the odd one out: 79, 48, 41, 31? (a) 79 (b) 48 (c) 41 (d) 31
  24. 24.Which number is the odd one out: 18, 95, 90, 99? (a) 18 (b) 95 (c) 90 (d) 99
  25. 25.Which number is the odd one out: 16, 32, 15, 64? (a) 16 (b) 32 (c) 15 (d) 64
  26. 26.Which number is the odd one out: 71, 34, 47, 17? (a) 71 (b) 34 (c) 47 (d) 17
  27. 27.Which number is the odd one out: 79, 90, 61, 67? (a) 79 (b) 90 (c) 61 (d) 67
  28. 28.Which number is the odd one out: 24, 96, 40, 10? (a) 24 (b) 96 (c) 40 (d) 10
  29. 29.Which number is the odd one out: 53, 34, 19, 23? (a) 53 (b) 34 (c) 19 (d) 23
  30. 30.Which number is the odd one out: 48, 78, 8, 37? (a) 48 (b) 78 (c) 8 (d) 37
  31. 31.Which number is the odd one out: 90, 11, 59, 41? (a) 90 (b) 11 (c) 59 (d) 41
  32. 32.Which number is the odd one out: 79, 96, 89, 67? (a) 79 (b) 96 (c) 89 (d) 67
  33. 33.Which number is the odd one out: 85, 53, 31, 43? (a) 85 (b) 53 (c) 31 (d) 43
  34. 34.Which number is the odd one out: 65, 40, 32, 38? (a) 65 (b) 40 (c) 32 (d) 38
  35. 35.Which number is the odd one out: 19, 53, 43, 75? (a) 19 (b) 53 (c) 43 (d) 75
  36. 36.Which number is the odd one out: 85, 10, 55, 86? (a) 85 (b) 10 (c) 55 (d) 86
  37. 37.Which number is the odd one out: 47, 86, 2, 13? (a) 47 (b) 86 (c) 2 (d) 13
  38. 38.Which number is the odd one out: 90, 59, 11, 97? (a) 90 (b) 59 (c) 11 (d) 97
  39. 39.Which number is the odd one out: 72, 96, 45, 24? (a) 72 (b) 96 (c) 45 (d) 24
  40. 40.Which number is the odd one out: 71, 23, 47, 70? (a) 71 (b) 23 (c) 47 (d) 70

Answer key

  1. 80
  2. 62
  3. 79
  4. 95
  5. 20
  6. 22
  7. 88
  8. 9
  9. 9
  10. 27
  11. 42
  12. 86
  13. 6
  14. 69
  15. 4
  16. 6
  17. 59
  18. 20
  19. 62
  20. 11
  21. 73
  22. 80
  23. 48
  24. 95
  25. 15
  26. 34
  27. 90
  28. 10
  29. 34
  30. 37
  31. 90
  32. 96
  33. 85
  34. 65
  35. 75
  36. 86
  37. 86
  38. 90
  39. 45
  40. 70

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