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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 848 · 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: 11, 71, 83, 91? (a) 11 (b) 71 (c) 83 (d) 91
  2. 2.Which number is the odd one out: 91, 70, 35, 58? (a) 91 (b) 70 (c) 35 (d) 58
  3. 3.Which number is the odd one out: 71, 17, 26, 47? (a) 71 (b) 17 (c) 26 (d) 47
  4. 4.Which number is the odd one out: 67, 71, 42, 97? (a) 67 (b) 71 (c) 42 (d) 97
  5. 5.Which number is the odd one out: 47, 11, 71, 91? (a) 47 (b) 11 (c) 71 (d) 91
  6. 6.Which number is the odd one out: 86, 43, 71, 13? (a) 86 (b) 43 (c) 71 (d) 13
  7. 7.Which number is the odd one out: 23, 53, 37, 50? (a) 23 (b) 53 (c) 37 (d) 50
  8. 8.Which number is the odd one out: 95, 26, 44, 20? (a) 95 (b) 26 (c) 44 (d) 20
  9. 9.Which number is the odd one out: 85, 5, 17, 67? (a) 85 (b) 5 (c) 17 (d) 67
  10. 10.Which number is the odd one out: 16, 8, 19, 64? (a) 16 (b) 8 (c) 19 (d) 64
  11. 11.Which number is the odd one out: 17, 43, 53, 95? (a) 17 (b) 43 (c) 53 (d) 95
  12. 12.Which number is the odd one out: 53, 61, 43, 72? (a) 53 (b) 61 (c) 43 (d) 72
  13. 13.Which number is the odd one out: 16, 76, 64, 8? (a) 16 (b) 76 (c) 64 (d) 8
  14. 14.Which number is the odd one out: 68, 52, 3, 74? (a) 68 (b) 52 (c) 3 (d) 74
  15. 15.Which number is the odd one out: 19, 63, 73, 53? (a) 19 (b) 63 (c) 73 (d) 53
  16. 16.Which number is the odd one out: 83, 71, 44, 23? (a) 83 (b) 71 (c) 44 (d) 23
  17. 17.Which number is the odd one out: 31, 58, 61, 97? (a) 31 (b) 58 (c) 61 (d) 97
  18. 18.Which number is the odd one out: 25, 97, 29, 67? (a) 25 (b) 97 (c) 29 (d) 67
  19. 19.Which number is the odd one out: 11, 29, 3, 6? (a) 11 (b) 29 (c) 3 (d) 6
  20. 20.Which number is the odd one out: 39, 53, 17, 41? (a) 39 (b) 53 (c) 17 (d) 41
  21. 21.Which number is the odd one out: 67, 43, 35, 31? (a) 67 (b) 43 (c) 35 (d) 31
  22. 22.Which number is the odd one out: 13, 32, 79, 11? (a) 13 (b) 32 (c) 79 (d) 11
  23. 23.Which number is the odd one out: 35, 85, 75, 42? (a) 35 (b) 85 (c) 75 (d) 42
  24. 24.Which number is the odd one out: 47, 4, 13, 67? (a) 47 (b) 4 (c) 13 (d) 67
  25. 25.Which number is the odd one out: 44, 68, 26, 76? (a) 44 (b) 68 (c) 26 (d) 76
  26. 26.Which number is the odd one out: 29, 31, 37, 80? (a) 29 (b) 31 (c) 37 (d) 80
  27. 27.Which number is the odd one out: 61, 67, 87, 13? (a) 61 (b) 67 (c) 87 (d) 13
  28. 28.Which number is the odd one out: 83, 17, 12, 51? (a) 83 (b) 17 (c) 12 (d) 51
  29. 29.Which number is the odd one out: 99, 24, 96, 6? (a) 99 (b) 24 (c) 96 (d) 6
  30. 30.Which number is the odd one out: 79, 37, 18, 31? (a) 79 (b) 37 (c) 18 (d) 31
  31. 31.Which number is the odd one out: 79, 49, 61, 59? (a) 79 (b) 49 (c) 61 (d) 59
  32. 32.Which number is the odd one out: 79, 97, 30, 61? (a) 79 (b) 97 (c) 30 (d) 61
  33. 33.Which number is the odd one out: 47, 37, 44, 71? (a) 47 (b) 37 (c) 44 (d) 71
  34. 34.Which number is the odd one out: 71, 53, 9, 41? (a) 71 (b) 53 (c) 9 (d) 41
  35. 35.Which number is the odd one out: 40, 85, 31, 67? (a) 40 (b) 85 (c) 31 (d) 67
  36. 36.Which number is the odd one out: 29, 60, 79, 19? (a) 29 (b) 60 (c) 79 (d) 19
  37. 37.Which number is the odd one out: 10, 59, 23, 2? (a) 10 (b) 59 (c) 23 (d) 2
  38. 38.Which number is the odd one out: 57, 64, 88, 4? (a) 57 (b) 64 (c) 88 (d) 4
  39. 39.Which number is the odd one out: 70, 53, 67, 29? (a) 70 (b) 53 (c) 67 (d) 29
  40. 40.Which number is the odd one out: 43, 59, 75, 13? (a) 43 (b) 59 (c) 75 (d) 13

Answer key

  1. 91
  2. 58
  3. 26
  4. 42
  5. 91
  6. 86
  7. 50
  8. 95
  9. 85
  10. 19
  11. 95
  12. 72
  13. 76
  14. 3
  15. 63
  16. 44
  17. 58
  18. 25
  19. 6
  20. 39
  21. 35
  22. 32
  23. 42
  24. 4
  25. 26
  26. 80
  27. 87
  28. 12
  29. 99
  30. 18
  31. 49
  32. 30
  33. 44
  34. 9
  35. 40
  36. 60
  37. 10
  38. 57
  39. 70
  40. 75

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