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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 196 · 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: 65, 26, 20, 44? (a) 65 (b) 26 (c) 20 (d) 44
  2. 2.Which number is the odd one out: 43, 7, 35, 23? (a) 43 (b) 7 (c) 35 (d) 23
  3. 3.Which number is the odd one out: 54, 67, 3, 73? (a) 54 (b) 67 (c) 3 (d) 73
  4. 4.Which number is the odd one out: 97, 92, 61, 41? (a) 97 (b) 92 (c) 61 (d) 41
  5. 5.Which number is the odd one out: 98, 96, 28, 42? (a) 98 (b) 96 (c) 28 (d) 42
  6. 6.Which number is the odd one out: 67, 79, 6, 17? (a) 67 (b) 79 (c) 6 (d) 17
  7. 7.Which number is the odd one out: 89, 36, 53, 17? (a) 89 (b) 36 (c) 53 (d) 17
  8. 8.Which number is the odd one out: 59, 30, 13, 71? (a) 59 (b) 30 (c) 13 (d) 71
  9. 9.Which number is the odd one out: 32, 42, 8, 56? (a) 32 (b) 42 (c) 8 (d) 56
  10. 10.Which number is the odd one out: 50, 43, 73, 17? (a) 50 (b) 43 (c) 73 (d) 17
  11. 11.Which number is the odd one out: 89, 40, 53, 67? (a) 89 (b) 40 (c) 53 (d) 67
  12. 12.Which number is the odd one out: 73, 79, 70, 53? (a) 73 (b) 79 (c) 70 (d) 53
  13. 13.Which number is the odd one out: 37, 9, 83, 61? (a) 37 (b) 9 (c) 83 (d) 61
  14. 14.Which number is the odd one out: 28, 11, 2, 41? (a) 28 (b) 11 (c) 2 (d) 41
  15. 15.Which number is the odd one out: 64, 30, 72, 90? (a) 64 (b) 30 (c) 72 (d) 90
  16. 16.Which number is the odd one out: 39, 61, 23, 54? (a) 39 (b) 61 (c) 23 (d) 54
  17. 17.Which number is the odd one out: 97, 41, 31, 2? (a) 97 (b) 41 (c) 31 (d) 2
  18. 18.Which number is the odd one out: 66, 20, 30, 78? (a) 66 (b) 20 (c) 30 (d) 78
  19. 19.Which number is the odd one out: 65, 42, 96, 56? (a) 65 (b) 42 (c) 96 (d) 56
  20. 20.Which number is the odd one out: 83, 40, 89, 61? (a) 83 (b) 40 (c) 89 (d) 61
  21. 21.Which number is the odd one out: 24, 8, 78, 76? (a) 24 (b) 8 (c) 78 (d) 76
  22. 22.Which number is the odd one out: 53, 43, 67, 76? (a) 53 (b) 43 (c) 67 (d) 76
  23. 23.Which number is the odd one out: 4, 14, 28, 98? (a) 4 (b) 14 (c) 28 (d) 98
  24. 24.Which number is the odd one out: 11, 53, 67, 56? (a) 11 (b) 53 (c) 67 (d) 56
  25. 25.Which number is the odd one out: 29, 92, 19, 23? (a) 29 (b) 92 (c) 19 (d) 23
  26. 26.Which number is the odd one out: 13, 31, 37, 39? (a) 13 (b) 31 (c) 37 (d) 39
  27. 27.Which number is the odd one out: 73, 13, 29, 85? (a) 73 (b) 13 (c) 29 (d) 85
  28. 28.Which number is the odd one out: 80, 55, 24, 48? (a) 80 (b) 55 (c) 24 (d) 48
  29. 29.Which number is the odd one out: 83, 71, 37, 46? (a) 83 (b) 71 (c) 37 (d) 46
  30. 30.Which number is the odd one out: 50, 82, 10, 73? (a) 50 (b) 82 (c) 10 (d) 73
  31. 31.Which number is the odd one out: 27, 87, 99, 4? (a) 27 (b) 87 (c) 99 (d) 4
  32. 32.Which number is the odd one out: 80, 11, 40, 5? (a) 80 (b) 11 (c) 40 (d) 5
  33. 33.Which number is the odd one out: 75, 50, 15, 38? (a) 75 (b) 50 (c) 15 (d) 38
  34. 34.Which number is the odd one out: 54, 47, 23, 51? (a) 54 (b) 47 (c) 23 (d) 51
  35. 35.Which number is the odd one out: 97, 17, 25, 5? (a) 97 (b) 17 (c) 25 (d) 5
  36. 36.Which number is the odd one out: 24, 45, 55, 72? (a) 24 (b) 45 (c) 55 (d) 72
  37. 37.Which number is the odd one out: 13, 11, 31, 2? (a) 13 (b) 11 (c) 31 (d) 2
  38. 38.Which number is the odd one out: 2, 34, 11, 83? (a) 2 (b) 34 (c) 11 (d) 83
  39. 39.Which number is the odd one out: 53, 23, 97, 8? (a) 53 (b) 23 (c) 97 (d) 8
  40. 40.Which number is the odd one out: 62, 23, 97, 11? (a) 62 (b) 23 (c) 97 (d) 11

Answer key

  1. 65
  2. 35
  3. 54
  4. 92
  5. 96
  6. 6
  7. 36
  8. 30
  9. 42
  10. 50
  11. 40
  12. 70
  13. 9
  14. 28
  15. 64
  16. 54
  17. 2
  18. 20
  19. 65
  20. 40
  21. 78
  22. 76
  23. 4
  24. 56
  25. 92
  26. 39
  27. 85
  28. 55
  29. 46
  30. 73
  31. 4
  32. 11
  33. 38
  34. 54
  35. 25
  36. 55
  37. 2
  38. 34
  39. 8
  40. 62

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