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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 532 · 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: 6, 43, 47, 79? (a) 6 (b) 43 (c) 47 (d) 79
  2. 2.Which number is the odd one out: 32, 8, 80, 65? (a) 32 (b) 8 (c) 80 (d) 65
  3. 3.Which number is the odd one out: 17, 45, 89, 73? (a) 17 (b) 45 (c) 89 (d) 73
  4. 4.Which number is the odd one out: 23, 53, 17, 24? (a) 23 (b) 53 (c) 17 (d) 24
  5. 5.Which number is the odd one out: 88, 6, 30, 60? (a) 88 (b) 6 (c) 30 (d) 60
  6. 6.Which number is the odd one out: 37, 32, 31, 79? (a) 37 (b) 32 (c) 31 (d) 79
  7. 7.Which number is the odd one out: 53, 13, 76, 37? (a) 53 (b) 13 (c) 76 (d) 37
  8. 8.Which number is the odd one out: 62, 92, 52, 68? (a) 62 (b) 92 (c) 52 (d) 68
  9. 9.Which number is the odd one out: 13, 63, 97, 11? (a) 13 (b) 63 (c) 97 (d) 11
  10. 10.Which number is the odd one out: 46, 24, 72, 18? (a) 46 (b) 24 (c) 72 (d) 18
  11. 11.Which number is the odd one out: 89, 83, 23, 66? (a) 89 (b) 83 (c) 23 (d) 66
  12. 12.Which number is the odd one out: 9, 81, 55, 25? (a) 9 (b) 81 (c) 55 (d) 25
  13. 13.Which number is the odd one out: 73, 89, 61, 14? (a) 73 (b) 89 (c) 61 (d) 14
  14. 14.Which number is the odd one out: 50, 33, 75, 10? (a) 50 (b) 33 (c) 75 (d) 10
  15. 15.Which number is the odd one out: 14, 59, 19, 7? (a) 14 (b) 59 (c) 19 (d) 7
  16. 16.Which number is the odd one out: 9, 89, 37, 53? (a) 9 (b) 89 (c) 37 (d) 53
  17. 17.Which number is the odd one out: 87, 83, 3, 74? (a) 87 (b) 83 (c) 3 (d) 74
  18. 18.Which number is the odd one out: 55, 80, 95, 32? (a) 55 (b) 80 (c) 95 (d) 32
  19. 19.Which number is the odd one out: 44, 31, 53, 73? (a) 44 (b) 31 (c) 53 (d) 73
  20. 20.Which number is the odd one out: 85, 46, 50, 38? (a) 85 (b) 46 (c) 50 (d) 38
  21. 21.Which number is the odd one out: 84, 98, 12, 14? (a) 84 (b) 98 (c) 12 (d) 14
  22. 22.Which number is the odd one out: 29, 4, 53, 97? (a) 29 (b) 4 (c) 53 (d) 97
  23. 23.Which number is the odd one out: 66, 48, 6, 64? (a) 66 (b) 48 (c) 6 (d) 64
  24. 24.Which number is the odd one out: 23, 30, 95, 59? (a) 23 (b) 30 (c) 95 (d) 59
  25. 25.Which number is the odd one out: 5, 2, 76, 20? (a) 5 (b) 2 (c) 76 (d) 20
  26. 26.Which number is the odd one out: 40, 81, 64, 80? (a) 40 (b) 81 (c) 64 (d) 80
  27. 27.Which number is the odd one out: 7, 19, 61, 42? (a) 7 (b) 19 (c) 61 (d) 42
  28. 28.Which number is the odd one out: 41, 79, 83, 44? (a) 41 (b) 79 (c) 83 (d) 44
  29. 29.Which number is the odd one out: 23, 83, 88, 71? (a) 23 (b) 83 (c) 88 (d) 71
  30. 30.Which number is the odd one out: 89, 23, 19, 24? (a) 89 (b) 23 (c) 19 (d) 24
  31. 31.Which number is the odd one out: 7, 53, 43, 56? (a) 7 (b) 53 (c) 43 (d) 56
  32. 32.Which number is the odd one out: 79, 73, 66, 3? (a) 79 (b) 73 (c) 66 (d) 3
  33. 33.Which number is the odd one out: 86, 77, 35, 70? (a) 86 (b) 77 (c) 35 (d) 70
  34. 34.Which number is the odd one out: 13, 60, 3, 89? (a) 13 (b) 60 (c) 3 (d) 89
  35. 35.Which number is the odd one out: 48, 17, 53, 73? (a) 48 (b) 17 (c) 53 (d) 73
  36. 36.Which number is the odd one out: 89, 7, 49, 83? (a) 89 (b) 7 (c) 49 (d) 83
  37. 37.Which number is the odd one out: 71, 79, 84, 57? (a) 71 (b) 79 (c) 84 (d) 57
  38. 38.Which number is the odd one out: 71, 97, 33, 17? (a) 71 (b) 97 (c) 33 (d) 17
  39. 39.Which number is the odd one out: 41, 62, 19, 11? (a) 41 (b) 62 (c) 19 (d) 11
  40. 40.Which number is the odd one out: 50, 23, 71, 13? (a) 50 (b) 23 (c) 71 (d) 13

Answer key

  1. 6
  2. 65
  3. 45
  4. 24
  5. 88
  6. 32
  7. 76
  8. 62
  9. 63
  10. 46
  11. 66
  12. 55
  13. 14
  14. 33
  15. 14
  16. 9
  17. 74
  18. 32
  19. 44
  20. 85
  21. 12
  22. 4
  23. 64
  24. 30
  25. 5
  26. 81
  27. 42
  28. 44
  29. 88
  30. 24
  31. 56
  32. 66
  33. 86
  34. 60
  35. 48
  36. 49
  37. 84
  38. 33
  39. 62
  40. 50

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