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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 651 · 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: 72, 13, 24, 18? (a) 72 (b) 13 (c) 24 (d) 18
  2. 2.Which number is the odd one out: 5, 30, 73, 41? (a) 5 (b) 30 (c) 73 (d) 41
  3. 3.Which number is the odd one out: 20, 40, 27, 32? (a) 20 (b) 40 (c) 27 (d) 32
  4. 4.Which number is the odd one out: 11, 86, 41, 17? (a) 11 (b) 86 (c) 41 (d) 17
  5. 5.Which number is the odd one out: 16, 3, 8, 64? (a) 16 (b) 3 (c) 8 (d) 64
  6. 6.Which number is the odd one out: 43, 47, 34, 19? (a) 43 (b) 47 (c) 34 (d) 19
  7. 7.Which number is the odd one out: 70, 35, 14, 51? (a) 70 (b) 35 (c) 14 (d) 51
  8. 8.Which number is the odd one out: 29, 26, 13, 67? (a) 29 (b) 26 (c) 13 (d) 67
  9. 9.Which number is the odd one out: 24, 96, 8, 41? (a) 24 (b) 96 (c) 8 (d) 41
  10. 10.Which number is the odd one out: 55, 29, 89, 90? (a) 55 (b) 29 (c) 89 (d) 90
  11. 11.Which number is the odd one out: 79, 43, 13, 30? (a) 79 (b) 43 (c) 13 (d) 30
  12. 12.Which number is the odd one out: 23, 41, 52, 19? (a) 23 (b) 41 (c) 52 (d) 19
  13. 13.Which number is the odd one out: 51, 47, 83, 11? (a) 51 (b) 47 (c) 83 (d) 11
  14. 14.Which number is the odd one out: 79, 34, 47, 41? (a) 79 (b) 34 (c) 47 (d) 41
  15. 15.Which number is the odd one out: 96, 79, 12, 32? (a) 96 (b) 79 (c) 12 (d) 32
  16. 16.Which number is the odd one out: 90, 61, 59, 53? (a) 90 (b) 61 (c) 59 (d) 53
  17. 17.Which number is the odd one out: 73, 11, 76, 97? (a) 73 (b) 11 (c) 76 (d) 97
  18. 18.Which number is the odd one out: 13, 69, 47, 37? (a) 13 (b) 69 (c) 47 (d) 37
  19. 19.Which number is the odd one out: 65, 89, 40, 29? (a) 65 (b) 89 (c) 40 (d) 29
  20. 20.Which number is the odd one out: 55, 24, 12, 48? (a) 55 (b) 24 (c) 12 (d) 48
  21. 21.Which number is the odd one out: 75, 10, 65, 96? (a) 75 (b) 10 (c) 65 (d) 96
  22. 22.Which number is the odd one out: 32, 64, 75, 16? (a) 32 (b) 64 (c) 75 (d) 16
  23. 23.Which number is the odd one out: 23, 89, 76, 61? (a) 23 (b) 89 (c) 76 (d) 61
  24. 24.Which number is the odd one out: 29, 90, 13, 71? (a) 29 (b) 90 (c) 13 (d) 71
  25. 25.Which number is the odd one out: 43, 63, 31, 97? (a) 43 (b) 63 (c) 31 (d) 97
  26. 26.Which number is the odd one out: 67, 11, 3, 81? (a) 67 (b) 11 (c) 3 (d) 81
  27. 27.Which number is the odd one out: 83, 54, 23, 71? (a) 83 (b) 54 (c) 23 (d) 71
  28. 28.Which number is the odd one out: 74, 19, 37, 67? (a) 74 (b) 19 (c) 37 (d) 67
  29. 29.Which number is the odd one out: 61, 7, 79, 42? (a) 61 (b) 7 (c) 79 (d) 42
  30. 30.Which number is the odd one out: 71, 2, 17, 80? (a) 71 (b) 2 (c) 17 (d) 80
  31. 31.Which number is the odd one out: 20, 73, 97, 23? (a) 20 (b) 73 (c) 97 (d) 23
  32. 32.Which number is the odd one out: 7, 64, 16, 52? (a) 7 (b) 64 (c) 16 (d) 52
  33. 33.Which number is the odd one out: 4, 83, 41, 59? (a) 4 (b) 83 (c) 41 (d) 59
  34. 34.Which number is the odd one out: 67, 2, 32, 29? (a) 67 (b) 2 (c) 32 (d) 29
  35. 35.Which number is the odd one out: 51, 67, 23, 29? (a) 51 (b) 67 (c) 23 (d) 29
  36. 36.Which number is the odd one out: 31, 21, 67, 47? (a) 31 (b) 21 (c) 67 (d) 47
  37. 37.Which number is the odd one out: 40, 80, 32, 57? (a) 40 (b) 80 (c) 32 (d) 57
  38. 38.Which number is the odd one out: 13, 99, 53, 43? (a) 13 (b) 99 (c) 53 (d) 43
  39. 39.Which number is the odd one out: 83, 41, 11, 86? (a) 83 (b) 41 (c) 11 (d) 86
  40. 40.Which number is the odd one out: 48, 29, 56, 84? (a) 48 (b) 29 (c) 56 (d) 84

Answer key

  1. 13
  2. 30
  3. 27
  4. 86
  5. 3
  6. 34
  7. 51
  8. 26
  9. 41
  10. 90
  11. 30
  12. 52
  13. 51
  14. 34
  15. 79
  16. 90
  17. 76
  18. 69
  19. 40
  20. 55
  21. 96
  22. 75
  23. 76
  24. 90
  25. 63
  26. 81
  27. 54
  28. 74
  29. 42
  30. 80
  31. 20
  32. 7
  33. 4
  34. 32
  35. 51
  36. 21
  37. 57
  38. 99
  39. 86
  40. 29

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