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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 208 · 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: 67, 44, 23, 47? (a) 67 (b) 44 (c) 23 (d) 47
  2. 2.Which number is the odd one out: 83, 2, 86, 47? (a) 83 (b) 2 (c) 86 (d) 47
  3. 3.Which number is the odd one out: 23, 9, 43, 47? (a) 23 (b) 9 (c) 43 (d) 47
  4. 4.Which number is the odd one out: 83, 71, 59, 33? (a) 83 (b) 71 (c) 59 (d) 33
  5. 5.Which number is the odd one out: 50, 47, 37, 59? (a) 50 (b) 47 (c) 37 (d) 59
  6. 6.Which number is the odd one out: 16, 64, 9, 63? (a) 16 (b) 64 (c) 9 (d) 63
  7. 7.Which number is the odd one out: 33, 47, 18, 37? (a) 33 (b) 47 (c) 18 (d) 37
  8. 8.Which number is the odd one out: 47, 65, 43, 23? (a) 47 (b) 65 (c) 43 (d) 23
  9. 9.Which number is the odd one out: 89, 8, 53, 31? (a) 89 (b) 8 (c) 53 (d) 31
  10. 10.Which number is the odd one out: 41, 32, 23, 13? (a) 41 (b) 32 (c) 23 (d) 13
  11. 11.Which number is the odd one out: 83, 89, 20, 67? (a) 83 (b) 89 (c) 20 (d) 67
  12. 12.Which number is the odd one out: 12, 36, 81, 9? (a) 12 (b) 36 (c) 81 (d) 9
  13. 13.Which number is the odd one out: 60, 47, 73, 2? (a) 60 (b) 47 (c) 73 (d) 2
  14. 14.Which number is the odd one out: 43, 9, 11, 17? (a) 43 (b) 9 (c) 11 (d) 17
  15. 15.Which number is the odd one out: 72, 96, 27, 6? (a) 72 (b) 96 (c) 27 (d) 6
  16. 16.Which number is the odd one out: 29, 61, 71, 60? (a) 29 (b) 61 (c) 71 (d) 60
  17. 17.Which number is the odd one out: 2, 53, 19, 14? (a) 2 (b) 53 (c) 19 (d) 14
  18. 18.Which number is the odd one out: 71, 66, 59, 79? (a) 71 (b) 66 (c) 59 (d) 79
  19. 19.Which number is the odd one out: 72, 3, 31, 23? (a) 72 (b) 3 (c) 31 (d) 23
  20. 20.Which number is the odd one out: 35, 16, 4, 64? (a) 35 (b) 16 (c) 4 (d) 64
  21. 21.Which number is the odd one out: 79, 67, 96, 31? (a) 79 (b) 67 (c) 96 (d) 31
  22. 22.Which number is the odd one out: 90, 97, 87, 17? (a) 90 (b) 97 (c) 87 (d) 17
  23. 23.Which number is the odd one out: 78, 38, 96, 24? (a) 78 (b) 38 (c) 96 (d) 24
  24. 24.Which number is the odd one out: 79, 48, 18, 72? (a) 79 (b) 48 (c) 18 (d) 72
  25. 25.Which number is the odd one out: 75, 72, 85, 95? (a) 75 (b) 72 (c) 85 (d) 95
  26. 26.Which number is the odd one out: 53, 73, 99, 47? (a) 53 (b) 73 (c) 99 (d) 47
  27. 27.Which number is the odd one out: 40, 6, 80, 88? (a) 40 (b) 6 (c) 80 (d) 88
  28. 28.Which number is the odd one out: 47, 19, 97, 60? (a) 47 (b) 19 (c) 97 (d) 60
  29. 29.Which number is the odd one out: 34, 71, 59, 79? (a) 34 (b) 71 (c) 59 (d) 79
  30. 30.Which number is the odd one out: 81, 97, 9, 99? (a) 81 (b) 97 (c) 9 (d) 99
  31. 31.Which number is the odd one out: 90, 97, 71, 47? (a) 90 (b) 97 (c) 71 (d) 47
  32. 32.Which number is the odd one out: 6, 54, 89, 18? (a) 6 (b) 54 (c) 89 (d) 18
  33. 33.Which number is the odd one out: 51, 23, 13, 42? (a) 51 (b) 23 (c) 13 (d) 42
  34. 34.Which number is the odd one out: 97, 13, 92, 53? (a) 97 (b) 13 (c) 92 (d) 53
  35. 35.Which number is the odd one out: 27, 3, 63, 7? (a) 27 (b) 3 (c) 63 (d) 7
  36. 36.Which number is the odd one out: 61, 99, 11, 23? (a) 61 (b) 99 (c) 11 (d) 23
  37. 37.Which number is the odd one out: 71, 29, 62, 53? (a) 71 (b) 29 (c) 62 (d) 53
  38. 38.Which number is the odd one out: 59, 47, 17, 88? (a) 59 (b) 47 (c) 17 (d) 88
  39. 39.Which number is the odd one out: 13, 61, 97, 36? (a) 13 (b) 61 (c) 97 (d) 36
  40. 40.Which number is the odd one out: 96, 83, 8, 48? (a) 96 (b) 83 (c) 8 (d) 48

Answer key

  1. 44
  2. 86
  3. 9
  4. 33
  5. 50
  6. 63
  7. 18
  8. 65
  9. 8
  10. 32
  11. 20
  12. 12
  13. 60
  14. 9
  15. 27
  16. 60
  17. 14
  18. 66
  19. 72
  20. 35
  21. 96
  22. 90
  23. 38
  24. 79
  25. 72
  26. 99
  27. 6
  28. 60
  29. 34
  30. 97
  31. 90
  32. 89
  33. 42
  34. 92
  35. 7
  36. 99
  37. 62
  38. 88
  39. 36
  40. 83

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