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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 28 · 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: 16, 23, 61, 67? (a) 16 (b) 23 (c) 61 (d) 67
  2. 2.Which number is the odd one out: 12, 95, 93, 65? (a) 12 (b) 95 (c) 93 (d) 65
  3. 3.Which number is the odd one out: 65, 98, 35, 14? (a) 65 (b) 98 (c) 35 (d) 14
  4. 4.Which number is the odd one out: 19, 61, 6, 47? (a) 19 (b) 61 (c) 6 (d) 47
  5. 5.Which number is the odd one out: 47, 53, 2, 12? (a) 47 (b) 53 (c) 2 (d) 12
  6. 6.Which number is the odd one out: 5, 80, 2, 97? (a) 5 (b) 80 (c) 2 (d) 97
  7. 7.Which number is the odd one out: 3, 17, 48, 41? (a) 3 (b) 17 (c) 48 (d) 41
  8. 8.Which number is the odd one out: 43, 70, 17, 47? (a) 43 (b) 70 (c) 17 (d) 47
  9. 9.Which number is the odd one out: 89, 11, 87, 71? (a) 89 (b) 11 (c) 87 (d) 71
  10. 10.Which number is the odd one out: 54, 25, 99, 90? (a) 54 (b) 25 (c) 99 (d) 90
  11. 11.Which number is the odd one out: 72, 27, 37, 79? (a) 72 (b) 27 (c) 37 (d) 79
  12. 12.Which number is the odd one out: 73, 53, 30, 11? (a) 73 (b) 53 (c) 30 (d) 11
  13. 13.Which number is the odd one out: 12, 67, 59, 79? (a) 12 (b) 67 (c) 59 (d) 79
  14. 14.Which number is the odd one out: 36, 67, 3, 23? (a) 36 (b) 67 (c) 3 (d) 23
  15. 15.Which number is the odd one out: 29, 89, 5, 70? (a) 29 (b) 89 (c) 5 (d) 70
  16. 16.Which number is the odd one out: 29, 4, 64, 16? (a) 29 (b) 4 (c) 64 (d) 16
  17. 17.Which number is the odd one out: 55, 17, 29, 19? (a) 55 (b) 17 (c) 29 (d) 19
  18. 18.Which number is the odd one out: 12, 11, 23, 51? (a) 12 (b) 11 (c) 23 (d) 51
  19. 19.Which number is the odd one out: 89, 28, 91, 17? (a) 89 (b) 28 (c) 91 (d) 17
  20. 20.Which number is the odd one out: 83, 2, 36, 19? (a) 83 (b) 2 (c) 36 (d) 19
  21. 21.Which number is the odd one out: 96, 72, 54, 12? (a) 96 (b) 72 (c) 54 (d) 12
  22. 22.Which number is the odd one out: 22, 64, 16, 32? (a) 22 (b) 64 (c) 16 (d) 32
  23. 23.Which number is the odd one out: 31, 83, 32, 41? (a) 31 (b) 83 (c) 32 (d) 41
  24. 24.Which number is the odd one out: 62, 97, 2, 13? (a) 62 (b) 97 (c) 2 (d) 13
  25. 25.Which number is the odd one out: 98, 53, 73, 89? (a) 98 (b) 53 (c) 73 (d) 89
  26. 26.Which number is the odd one out: 67, 73, 13, 52? (a) 67 (b) 73 (c) 13 (d) 52
  27. 27.Which number is the odd one out: 67, 31, 94, 71? (a) 67 (b) 31 (c) 94 (d) 71
  28. 28.Which number is the odd one out: 83, 19, 70, 97? (a) 83 (b) 19 (c) 70 (d) 97
  29. 29.Which number is the odd one out: 13, 19, 50, 5? (a) 13 (b) 19 (c) 50 (d) 5
  30. 30.Which number is the odd one out: 65, 41, 34, 5? (a) 65 (b) 41 (c) 34 (d) 5
  31. 31.Which number is the odd one out: 47, 97, 18, 11? (a) 47 (b) 97 (c) 18 (d) 11
  32. 32.Which number is the odd one out: 67, 17, 79, 30? (a) 67 (b) 17 (c) 79 (d) 30
  33. 33.Which number is the odd one out: 27, 71, 97, 31? (a) 27 (b) 71 (c) 97 (d) 31
  34. 34.Which number is the odd one out: 9, 81, 27, 30? (a) 9 (b) 81 (c) 27 (d) 30
  35. 35.Which number is the odd one out: 41, 61, 13, 14? (a) 41 (b) 61 (c) 13 (d) 14
  36. 36.Which number is the odd one out: 79, 13, 59, 15? (a) 79 (b) 13 (c) 59 (d) 15
  37. 37.Which number is the odd one out: 37, 12, 43, 67? (a) 37 (b) 12 (c) 43 (d) 67
  38. 38.Which number is the odd one out: 61, 58, 73, 11? (a) 61 (b) 58 (c) 73 (d) 11
  39. 39.Which number is the odd one out: 25, 11, 19, 31? (a) 25 (b) 11 (c) 19 (d) 31
  40. 40.Which number is the odd one out: 41, 2, 61, 84? (a) 41 (b) 2 (c) 61 (d) 84

Answer key

  1. 16
  2. 12
  3. 65
  4. 6
  5. 12
  6. 80
  7. 48
  8. 70
  9. 87
  10. 25
  11. 72
  12. 30
  13. 12
  14. 36
  15. 70
  16. 29
  17. 55
  18. 12
  19. 28
  20. 36
  21. 54
  22. 22
  23. 32
  24. 62
  25. 98
  26. 52
  27. 94
  28. 70
  29. 50
  30. 34
  31. 18
  32. 30
  33. 27
  34. 30
  35. 14
  36. 15
  37. 12
  38. 58
  39. 25
  40. 84

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