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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 567 · 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: 29, 79, 19, 80? (a) 29 (b) 79 (c) 19 (d) 80
  2. 2.Which number is the odd one out: 56, 16, 21, 64? (a) 56 (b) 16 (c) 21 (d) 64
  3. 3.Which number is the odd one out: 78, 24, 83, 96? (a) 78 (b) 24 (c) 83 (d) 96
  4. 4.Which number is the odd one out: 3, 8, 16, 64? (a) 3 (b) 8 (c) 16 (d) 64
  5. 5.Which number is the odd one out: 13, 29, 89, 12? (a) 13 (b) 29 (c) 89 (d) 12
  6. 6.Which number is the odd one out: 19, 23, 63, 11? (a) 19 (b) 23 (c) 63 (d) 11
  7. 7.Which number is the odd one out: 71, 76, 61, 53? (a) 71 (b) 76 (c) 61 (d) 53
  8. 8.Which number is the odd one out: 24, 30, 48, 5? (a) 24 (b) 30 (c) 48 (d) 5
  9. 9.Which number is the odd one out: 46, 89, 83, 2? (a) 46 (b) 89 (c) 83 (d) 2
  10. 10.Which number is the odd one out: 90, 74, 18, 35? (a) 90 (b) 74 (c) 18 (d) 35
  11. 11.Which number is the odd one out: 66, 28, 78, 6? (a) 66 (b) 28 (c) 78 (d) 6
  12. 12.Which number is the odd one out: 50, 10, 63, 55? (a) 50 (b) 10 (c) 63 (d) 55
  13. 13.Which number is the odd one out: 48, 96, 66, 17? (a) 48 (b) 96 (c) 66 (d) 17
  14. 14.Which number is the odd one out: 89, 92, 7, 91? (a) 89 (b) 92 (c) 7 (d) 91
  15. 15.Which number is the odd one out: 61, 60, 29, 2? (a) 61 (b) 60 (c) 29 (d) 2
  16. 16.Which number is the odd one out: 66, 19, 29, 47? (a) 66 (b) 19 (c) 29 (d) 47
  17. 17.Which number is the odd one out: 11, 73, 81, 13? (a) 11 (b) 73 (c) 81 (d) 13
  18. 18.Which number is the odd one out: 27, 97, 13, 37? (a) 27 (b) 97 (c) 13 (d) 37
  19. 19.Which number is the odd one out: 15, 61, 17, 41? (a) 15 (b) 61 (c) 17 (d) 41
  20. 20.Which number is the odd one out: 62, 17, 71, 47? (a) 62 (b) 17 (c) 71 (d) 47
  21. 21.Which number is the odd one out: 64, 23, 97, 79? (a) 64 (b) 23 (c) 97 (d) 79
  22. 22.Which number is the odd one out: 67, 73, 13, 51? (a) 67 (b) 73 (c) 13 (d) 51
  23. 23.Which number is the odd one out: 99, 73, 9, 81? (a) 99 (b) 73 (c) 9 (d) 81
  24. 24.Which number is the odd one out: 15, 75, 11, 93? (a) 15 (b) 75 (c) 11 (d) 93
  25. 25.Which number is the odd one out: 82, 91, 22, 26? (a) 82 (b) 91 (c) 22 (d) 26
  26. 26.Which number is the odd one out: 43, 36, 71, 11? (a) 43 (b) 36 (c) 71 (d) 11
  27. 27.Which number is the odd one out: 96, 47, 29, 19? (a) 96 (b) 47 (c) 29 (d) 19
  28. 28.Which number is the odd one out: 83, 17, 55, 29? (a) 83 (b) 17 (c) 55 (d) 29
  29. 29.Which number is the odd one out: 3, 32, 53, 33? (a) 3 (b) 32 (c) 53 (d) 33
  30. 30.Which number is the odd one out: 71, 24, 29, 67? (a) 71 (b) 24 (c) 29 (d) 67
  31. 31.Which number is the odd one out: 61, 31, 45, 97? (a) 61 (b) 31 (c) 45 (d) 97
  32. 32.Which number is the odd one out: 78, 2, 53, 17? (a) 78 (b) 2 (c) 53 (d) 17
  33. 33.Which number is the odd one out: 60, 80, 23, 24? (a) 60 (b) 80 (c) 23 (d) 24
  34. 34.Which number is the odd one out: 30, 53, 71, 47? (a) 30 (b) 53 (c) 71 (d) 47
  35. 35.Which number is the odd one out: 19, 2, 82, 83? (a) 19 (b) 2 (c) 82 (d) 83
  36. 36.Which number is the odd one out: 29, 5, 2, 70? (a) 29 (b) 5 (c) 2 (d) 70
  37. 37.Which number is the odd one out: 71, 48, 37, 83? (a) 71 (b) 48 (c) 37 (d) 83
  38. 38.Which number is the odd one out: 97, 31, 24, 37? (a) 97 (b) 31 (c) 24 (d) 37
  39. 39.Which number is the odd one out: 45, 48, 24, 12? (a) 45 (b) 48 (c) 24 (d) 12
  40. 40.Which number is the odd one out: 23, 83, 47, 16? (a) 23 (b) 83 (c) 47 (d) 16

Answer key

  1. 80
  2. 21
  3. 83
  4. 3
  5. 12
  6. 63
  7. 76
  8. 5
  9. 46
  10. 35
  11. 28
  12. 63
  13. 17
  14. 92
  15. 60
  16. 66
  17. 81
  18. 27
  19. 15
  20. 62
  21. 64
  22. 51
  23. 73
  24. 11
  25. 91
  26. 36
  27. 96
  28. 55
  29. 32
  30. 24
  31. 45
  32. 78
  33. 23
  34. 30
  35. 82
  36. 70
  37. 48
  38. 24
  39. 45
  40. 16

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