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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 930 · 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: 83, 71, 72, 79? (a) 83 (b) 71 (c) 72 (d) 79
  2. 2.Which number is the odd one out: 65, 8, 95, 20? (a) 65 (b) 8 (c) 95 (d) 20
  3. 3.Which number is the odd one out: 53, 24, 31, 59? (a) 53 (b) 24 (c) 31 (d) 59
  4. 4.Which number is the odd one out: 42, 41, 17, 67? (a) 42 (b) 41 (c) 17 (d) 67
  5. 5.Which number is the odd one out: 9, 61, 23, 41? (a) 9 (b) 61 (c) 23 (d) 41
  6. 6.Which number is the odd one out: 38, 47, 13, 17? (a) 38 (b) 47 (c) 13 (d) 17
  7. 7.Which number is the odd one out: 13, 71, 89, 58? (a) 13 (b) 71 (c) 89 (d) 58
  8. 8.Which number is the odd one out: 97, 71, 37, 12? (a) 97 (b) 71 (c) 37 (d) 12
  9. 9.Which number is the odd one out: 8, 83, 76, 88? (a) 8 (b) 83 (c) 76 (d) 88
  10. 10.Which number is the odd one out: 30, 12, 15, 75? (a) 30 (b) 12 (c) 15 (d) 75
  11. 11.Which number is the odd one out: 14, 90, 77, 91? (a) 14 (b) 90 (c) 77 (d) 91
  12. 12.Which number is the odd one out: 40, 75, 57, 87? (a) 40 (b) 75 (c) 57 (d) 87
  13. 13.Which number is the odd one out: 50, 37, 47, 71? (a) 50 (b) 37 (c) 47 (d) 71
  14. 14.Which number is the odd one out: 9, 40, 16, 81? (a) 9 (b) 40 (c) 16 (d) 81
  15. 15.Which number is the odd one out: 71, 80, 2, 31? (a) 71 (b) 80 (c) 2 (d) 31
  16. 16.Which number is the odd one out: 6, 43, 41, 71? (a) 6 (b) 43 (c) 41 (d) 71
  17. 17.Which number is the odd one out: 21, 98, 78, 77? (a) 21 (b) 98 (c) 78 (d) 77
  18. 18.Which number is the odd one out: 98, 20, 91, 77? (a) 98 (b) 20 (c) 91 (d) 77
  19. 19.Which number is the odd one out: 41, 11, 46, 53? (a) 41 (b) 11 (c) 46 (d) 53
  20. 20.Which number is the odd one out: 16, 48, 18, 64? (a) 16 (b) 48 (c) 18 (d) 64
  21. 21.Which number is the odd one out: 32, 40, 80, 41? (a) 32 (b) 40 (c) 80 (d) 41
  22. 22.Which number is the odd one out: 16, 27, 9, 99? (a) 16 (b) 27 (c) 9 (d) 99
  23. 23.Which number is the odd one out: 75, 13, 53, 19? (a) 75 (b) 13 (c) 53 (d) 19
  24. 24.Which number is the odd one out: 37, 24, 88, 96? (a) 37 (b) 24 (c) 88 (d) 96
  25. 25.Which number is the odd one out: 89, 67, 90, 11? (a) 89 (b) 67 (c) 90 (d) 11
  26. 26.Which number is the odd one out: 52, 11, 23, 71? (a) 52 (b) 11 (c) 23 (d) 71
  27. 27.Which number is the odd one out: 59, 47, 41, 63? (a) 59 (b) 47 (c) 41 (d) 63
  28. 28.Which number is the odd one out: 4, 79, 41, 13? (a) 4 (b) 79 (c) 41 (d) 13
  29. 29.Which number is the odd one out: 28, 47, 17, 29? (a) 28 (b) 47 (c) 17 (d) 29
  30. 30.Which number is the odd one out: 69, 61, 43, 89? (a) 69 (b) 61 (c) 43 (d) 89
  31. 31.Which number is the odd one out: 44, 80, 34, 40? (a) 44 (b) 80 (c) 34 (d) 40
  32. 32.Which number is the odd one out: 79, 13, 73, 44? (a) 79 (b) 13 (c) 73 (d) 44
  33. 33.Which number is the odd one out: 40, 71, 61, 2? (a) 40 (b) 71 (c) 61 (d) 2
  34. 34.Which number is the odd one out: 63, 49, 27, 9? (a) 63 (b) 49 (c) 27 (d) 9
  35. 35.Which number is the odd one out: 59, 27, 18, 41? (a) 59 (b) 27 (c) 18 (d) 41
  36. 36.Which number is the odd one out: 17, 73, 82, 67? (a) 17 (b) 73 (c) 82 (d) 67
  37. 37.Which number is the odd one out: 13, 90, 41, 67? (a) 13 (b) 90 (c) 41 (d) 67
  38. 38.Which number is the odd one out: 28, 43, 89, 13? (a) 28 (b) 43 (c) 89 (d) 13
  39. 39.Which number is the odd one out: 19, 43, 29, 72? (a) 19 (b) 43 (c) 29 (d) 72
  40. 40.Which number is the odd one out: 14, 70, 77, 45? (a) 14 (b) 70 (c) 77 (d) 45

Answer key

  1. 72
  2. 8
  3. 24
  4. 42
  5. 9
  6. 38
  7. 58
  8. 12
  9. 83
  10. 12
  11. 90
  12. 40
  13. 50
  14. 40
  15. 80
  16. 6
  17. 78
  18. 20
  19. 46
  20. 18
  21. 41
  22. 16
  23. 75
  24. 37
  25. 90
  26. 52
  27. 63
  28. 4
  29. 28
  30. 69
  31. 34
  32. 44
  33. 40
  34. 49
  35. 18
  36. 82
  37. 90
  38. 28
  39. 72
  40. 45

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