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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 296 · 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: 61, 19, 22, 71? (a) 61 (b) 19 (c) 22 (d) 71
  2. 2.Which number is the odd one out: 11, 53, 43, 33? (a) 11 (b) 53 (c) 43 (d) 33
  3. 3.Which number is the odd one out: 70, 24, 56, 48? (a) 70 (b) 24 (c) 56 (d) 48
  4. 4.Which number is the odd one out: 13, 96, 31, 37? (a) 13 (b) 96 (c) 31 (d) 37
  5. 5.Which number is the odd one out: 81, 73, 9, 99? (a) 81 (b) 73 (c) 9 (d) 99
  6. 6.Which number is the odd one out: 52, 73, 59, 61? (a) 52 (b) 73 (c) 59 (d) 61
  7. 7.Which number is the odd one out: 41, 9, 73, 37? (a) 41 (b) 9 (c) 73 (d) 37
  8. 8.Which number is the odd one out: 5, 97, 80, 31? (a) 5 (b) 97 (c) 80 (d) 31
  9. 9.Which number is the odd one out: 13, 53, 23, 45? (a) 13 (b) 53 (c) 23 (d) 45
  10. 10.Which number is the odd one out: 5, 24, 96, 40? (a) 5 (b) 24 (c) 96 (d) 40
  11. 11.Which number is the odd one out: 77, 49, 91, 25? (a) 77 (b) 49 (c) 91 (d) 25
  12. 12.Which number is the odd one out: 20, 9, 68, 10? (a) 20 (b) 9 (c) 68 (d) 10
  13. 13.Which number is the odd one out: 89, 37, 47, 30? (a) 89 (b) 37 (c) 47 (d) 30
  14. 14.Which number is the odd one out: 23, 74, 31, 17? (a) 23 (b) 74 (c) 31 (d) 17
  15. 15.Which number is the odd one out: 50, 31, 2, 37? (a) 50 (b) 31 (c) 2 (d) 37
  16. 16.Which number is the odd one out: 20, 95, 55, 36? (a) 20 (b) 95 (c) 55 (d) 36
  17. 17.Which number is the odd one out: 82, 68, 40, 80? (a) 82 (b) 68 (c) 40 (d) 80
  18. 18.Which number is the odd one out: 79, 19, 63, 41? (a) 79 (b) 19 (c) 63 (d) 41
  19. 19.Which number is the odd one out: 97, 59, 89, 92? (a) 97 (b) 59 (c) 89 (d) 92
  20. 20.Which number is the odd one out: 65, 36, 15, 25? (a) 65 (b) 36 (c) 15 (d) 25
  21. 21.Which number is the odd one out: 72, 47, 89, 37? (a) 72 (b) 47 (c) 89 (d) 37
  22. 22.Which number is the odd one out: 3, 75, 59, 41? (a) 3 (b) 75 (c) 59 (d) 41
  23. 23.Which number is the odd one out: 15, 61, 23, 3? (a) 15 (b) 61 (c) 23 (d) 3
  24. 24.Which number is the odd one out: 98, 83, 2, 61? (a) 98 (b) 83 (c) 2 (d) 61
  25. 25.Which number is the odd one out: 8, 48, 14, 24? (a) 8 (b) 48 (c) 14 (d) 24
  26. 26.Which number is the odd one out: 11, 20, 2, 73? (a) 11 (b) 20 (c) 2 (d) 73
  27. 27.Which number is the odd one out: 47, 41, 19, 48? (a) 47 (b) 41 (c) 19 (d) 48
  28. 28.Which number is the odd one out: 9, 97, 81, 27? (a) 9 (b) 97 (c) 81 (d) 27
  29. 29.Which number is the odd one out: 23, 13, 56, 83? (a) 23 (b) 13 (c) 56 (d) 83
  30. 30.Which number is the odd one out: 90, 60, 12, 27? (a) 90 (b) 60 (c) 12 (d) 27
  31. 31.Which number is the odd one out: 39, 83, 79, 90? (a) 39 (b) 83 (c) 79 (d) 90
  32. 32.Which number is the odd one out: 17, 97, 43, 30? (a) 17 (b) 97 (c) 43 (d) 30
  33. 33.Which number is the odd one out: 17, 77, 84, 67? (a) 17 (b) 77 (c) 84 (d) 67
  34. 34.Which number is the odd one out: 8, 67, 88, 32? (a) 8 (b) 67 (c) 88 (d) 32
  35. 35.Which number is the odd one out: 6, 49, 48, 96? (a) 6 (b) 49 (c) 48 (d) 96
  36. 36.Which number is the odd one out: 11, 51, 43, 29? (a) 11 (b) 51 (c) 43 (d) 29
  37. 37.Which number is the odd one out: 71, 47, 81, 29? (a) 71 (b) 47 (c) 81 (d) 29
  38. 38.Which number is the odd one out: 24, 67, 89, 19? (a) 24 (b) 67 (c) 89 (d) 19
  39. 39.Which number is the odd one out: 10, 93, 27, 45? (a) 10 (b) 93 (c) 27 (d) 45
  40. 40.Which number is the odd one out: 36, 64, 4, 72? (a) 36 (b) 64 (c) 4 (d) 72

Answer key

  1. 22
  2. 33
  3. 70
  4. 96
  5. 73
  6. 52
  7. 9
  8. 80
  9. 45
  10. 5
  11. 25
  12. 9
  13. 30
  14. 74
  15. 50
  16. 36
  17. 82
  18. 63
  19. 92
  20. 36
  21. 72
  22. 75
  23. 15
  24. 98
  25. 14
  26. 20
  27. 48
  28. 97
  29. 56
  30. 27
  31. 90
  32. 30
  33. 84
  34. 67
  35. 49
  36. 51
  37. 81
  38. 24
  39. 10
  40. 72

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