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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 331 · 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: 37, 53, 10, 59? (a) 37 (b) 53 (c) 10 (d) 59
  2. 2.Which number is the odd one out: 15, 18, 78, 54? (a) 15 (b) 18 (c) 78 (d) 54
  3. 3.Which number is the odd one out: 97, 8, 59, 61? (a) 97 (b) 8 (c) 59 (d) 61
  4. 4.Which number is the odd one out: 90, 54, 71, 45? (a) 90 (b) 54 (c) 71 (d) 45
  5. 5.Which number is the odd one out: 56, 73, 53, 23? (a) 56 (b) 73 (c) 53 (d) 23
  6. 6.Which number is the odd one out: 50, 65, 10, 49? (a) 50 (b) 65 (c) 10 (d) 49
  7. 7.Which number is the odd one out: 89, 98, 41, 23? (a) 89 (b) 98 (c) 41 (d) 23
  8. 8.Which number is the odd one out: 63, 47, 29, 59? (a) 63 (b) 47 (c) 29 (d) 59
  9. 9.Which number is the odd one out: 51, 37, 53, 6? (a) 51 (b) 37 (c) 53 (d) 6
  10. 10.Which number is the odd one out: 13, 61, 52, 11? (a) 13 (b) 61 (c) 52 (d) 11
  11. 11.Which number is the odd one out: 29, 7, 53, 49? (a) 29 (b) 7 (c) 53 (d) 49
  12. 12.Which number is the odd one out: 79, 18, 17, 67? (a) 79 (b) 18 (c) 17 (d) 67
  13. 13.Which number is the odd one out: 77, 14, 91, 90? (a) 77 (b) 14 (c) 91 (d) 90
  14. 14.Which number is the odd one out: 44, 2, 13, 23? (a) 44 (b) 2 (c) 13 (d) 23
  15. 15.Which number is the odd one out: 8, 76, 32, 10? (a) 8 (b) 76 (c) 32 (d) 10
  16. 16.Which number is the odd one out: 19, 89, 17, 93? (a) 19 (b) 89 (c) 17 (d) 93
  17. 17.Which number is the odd one out: 23, 18, 73, 2? (a) 23 (b) 18 (c) 73 (d) 2
  18. 18.Which number is the odd one out: 34, 17, 67, 31? (a) 34 (b) 17 (c) 67 (d) 31
  19. 19.Which number is the odd one out: 37, 13, 30, 31? (a) 37 (b) 13 (c) 30 (d) 31
  20. 20.Which number is the odd one out: 23, 79, 32, 17? (a) 23 (b) 79 (c) 32 (d) 17
  21. 21.Which number is the odd one out: 61, 71, 89, 94? (a) 61 (b) 71 (c) 89 (d) 94
  22. 22.Which number is the odd one out: 10, 73, 19, 97? (a) 10 (b) 73 (c) 19 (d) 97
  23. 23.Which number is the odd one out: 82, 71, 59, 41? (a) 82 (b) 71 (c) 59 (d) 41
  24. 24.Which number is the odd one out: 32, 48, 70, 96? (a) 32 (b) 48 (c) 70 (d) 96
  25. 25.Which number is the odd one out: 77, 27, 14, 98? (a) 77 (b) 27 (c) 14 (d) 98
  26. 26.Which number is the odd one out: 89, 64, 47, 83? (a) 89 (b) 64 (c) 47 (d) 83
  27. 27.Which number is the odd one out: 32, 96, 55, 6? (a) 32 (b) 96 (c) 55 (d) 6
  28. 28.Which number is the odd one out: 19, 83, 8, 17? (a) 19 (b) 83 (c) 8 (d) 17
  29. 29.Which number is the odd one out: 73, 43, 83, 91? (a) 73 (b) 43 (c) 83 (d) 91
  30. 30.Which number is the odd one out: 59, 19, 41, 96? (a) 59 (b) 19 (c) 41 (d) 96
  31. 31.Which number is the odd one out: 74, 59, 41, 61? (a) 74 (b) 59 (c) 41 (d) 61
  32. 32.Which number is the odd one out: 24, 88, 48, 97? (a) 24 (b) 88 (c) 48 (d) 97
  33. 33.Which number is the odd one out: 28, 56, 18, 24? (a) 28 (b) 56 (c) 18 (d) 24
  34. 34.Which number is the odd one out: 23, 11, 85, 67? (a) 23 (b) 11 (c) 85 (d) 67
  35. 35.Which number is the odd one out: 48, 40, 88, 30? (a) 48 (b) 40 (c) 88 (d) 30
  36. 36.Which number is the odd one out: 73, 97, 83, 91? (a) 73 (b) 97 (c) 83 (d) 91
  37. 37.Which number is the odd one out: 31, 72, 61, 13? (a) 31 (b) 72 (c) 61 (d) 13
  38. 38.Which number is the odd one out: 73, 26, 89, 31? (a) 73 (b) 26 (c) 89 (d) 31
  39. 39.Which number is the odd one out: 76, 64, 16, 55? (a) 76 (b) 64 (c) 16 (d) 55
  40. 40.Which number is the odd one out: 21, 13, 42, 6? (a) 21 (b) 13 (c) 42 (d) 6

Answer key

  1. 10
  2. 15
  3. 8
  4. 71
  5. 56
  6. 49
  7. 98
  8. 63
  9. 6
  10. 52
  11. 49
  12. 18
  13. 90
  14. 44
  15. 10
  16. 93
  17. 18
  18. 34
  19. 30
  20. 32
  21. 94
  22. 10
  23. 82
  24. 70
  25. 27
  26. 64
  27. 55
  28. 8
  29. 91
  30. 96
  31. 74
  32. 97
  33. 18
  34. 85
  35. 30
  36. 91
  37. 72
  38. 26
  39. 55
  40. 13

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