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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 994 · 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: 41, 70, 13, 73? (a) 41 (b) 70 (c) 13 (d) 73
  2. 2.Which number is the odd one out: 5, 15, 48, 24? (a) 5 (b) 15 (c) 48 (d) 24
  3. 3.Which number is the odd one out: 8, 11, 61, 73? (a) 8 (b) 11 (c) 61 (d) 73
  4. 4.Which number is the odd one out: 16, 43, 71, 47? (a) 16 (b) 43 (c) 71 (d) 47
  5. 5.Which number is the odd one out: 17, 91, 19, 47? (a) 17 (b) 91 (c) 19 (d) 47
  6. 6.Which number is the odd one out: 47, 11, 3, 6? (a) 47 (b) 11 (c) 3 (d) 6
  7. 7.Which number is the odd one out: 18, 59, 37, 3? (a) 18 (b) 59 (c) 37 (d) 3
  8. 8.Which number is the odd one out: 84, 97, 39, 13? (a) 84 (b) 97 (c) 39 (d) 13
  9. 9.Which number is the odd one out: 29, 89, 59, 80? (a) 29 (b) 89 (c) 59 (d) 80
  10. 10.Which number is the odd one out: 42, 59, 47, 13? (a) 42 (b) 59 (c) 47 (d) 13
  11. 11.Which number is the odd one out: 99, 6, 96, 24? (a) 99 (b) 6 (c) 96 (d) 24
  12. 12.Which number is the odd one out: 77, 33, 69, 51? (a) 77 (b) 33 (c) 69 (d) 51
  13. 13.Which number is the odd one out: 67, 59, 35, 31? (a) 67 (b) 59 (c) 35 (d) 31
  14. 14.Which number is the odd one out: 99, 17, 31, 71? (a) 99 (b) 17 (c) 31 (d) 71
  15. 15.Which number is the odd one out: 97, 53, 16, 47? (a) 97 (b) 53 (c) 16 (d) 47
  16. 16.Which number is the odd one out: 97, 29, 27, 61? (a) 97 (b) 29 (c) 27 (d) 61
  17. 17.Which number is the odd one out: 89, 23, 93, 67? (a) 89 (b) 23 (c) 93 (d) 67
  18. 18.Which number is the odd one out: 63, 29, 7, 61? (a) 63 (b) 29 (c) 7 (d) 61
  19. 19.Which number is the odd one out: 44, 25, 68, 74? (a) 44 (b) 25 (c) 68 (d) 74
  20. 20.Which number is the odd one out: 99, 44, 39, 27? (a) 99 (b) 44 (c) 39 (d) 27
  21. 21.Which number is the odd one out: 41, 23, 31, 68? (a) 41 (b) 23 (c) 31 (d) 68
  22. 22.Which number is the odd one out: 31, 18, 97, 47? (a) 31 (b) 18 (c) 97 (d) 47
  23. 23.Which number is the odd one out: 23, 89, 71, 22? (a) 23 (b) 89 (c) 71 (d) 22
  24. 24.Which number is the odd one out: 31, 72, 47, 97? (a) 31 (b) 72 (c) 47 (d) 97
  25. 25.Which number is the odd one out: 40, 71, 43, 31? (a) 40 (b) 71 (c) 43 (d) 31
  26. 26.Which number is the odd one out: 30, 42, 35, 66? (a) 30 (b) 42 (c) 35 (d) 66
  27. 27.Which number is the odd one out: 25, 13, 71, 47? (a) 25 (b) 13 (c) 71 (d) 47
  28. 28.Which number is the odd one out: 40, 80, 65, 47? (a) 40 (b) 80 (c) 65 (d) 47
  29. 29.Which number is the odd one out: 74, 82, 67, 94? (a) 74 (b) 82 (c) 67 (d) 94
  30. 30.Which number is the odd one out: 71, 67, 96, 43? (a) 71 (b) 67 (c) 96 (d) 43
  31. 31.Which number is the odd one out: 31, 11, 23, 64? (a) 31 (b) 11 (c) 23 (d) 64
  32. 32.Which number is the odd one out: 20, 36, 95, 25? (a) 20 (b) 36 (c) 95 (d) 25
  33. 33.Which number is the odd one out: 11, 19, 96, 97? (a) 11 (b) 19 (c) 96 (d) 97
  34. 34.Which number is the odd one out: 32, 43, 64, 16? (a) 32 (b) 43 (c) 64 (d) 16
  35. 35.Which number is the odd one out: 73, 85, 13, 40? (a) 73 (b) 85 (c) 13 (d) 40
  36. 36.Which number is the odd one out: 66, 79, 19, 11? (a) 66 (b) 79 (c) 19 (d) 11
  37. 37.Which number is the odd one out: 41, 5, 79, 30? (a) 41 (b) 5 (c) 79 (d) 30
  38. 38.Which number is the odd one out: 64, 2, 23, 29? (a) 64 (b) 2 (c) 23 (d) 29
  39. 39.Which number is the odd one out: 94, 48, 32, 24? (a) 94 (b) 48 (c) 32 (d) 24
  40. 40.Which number is the odd one out: 73, 47, 89, 57? (a) 73 (b) 47 (c) 89 (d) 57

Answer key

  1. 70
  2. 5
  3. 8
  4. 16
  5. 91
  6. 6
  7. 18
  8. 84
  9. 80
  10. 42
  11. 99
  12. 77
  13. 35
  14. 99
  15. 16
  16. 27
  17. 93
  18. 63
  19. 25
  20. 44
  21. 68
  22. 18
  23. 22
  24. 72
  25. 40
  26. 35
  27. 25
  28. 47
  29. 67
  30. 96
  31. 64
  32. 36
  33. 96
  34. 43
  35. 40
  36. 66
  37. 30
  38. 64
  39. 94
  40. 57

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