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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 891 · 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: 88, 41, 79, 61? (a) 88 (b) 41 (c) 79 (d) 61
  2. 2.Which number is the odd one out: 25, 85, 56, 49? (a) 25 (b) 85 (c) 56 (d) 49
  3. 3.Which number is the odd one out: 29, 71, 60, 61? (a) 29 (b) 71 (c) 60 (d) 61
  4. 4.Which number is the odd one out: 43, 85, 5, 89? (a) 43 (b) 85 (c) 5 (d) 89
  5. 5.Which number is the odd one out: 11, 73, 59, 44? (a) 11 (b) 73 (c) 59 (d) 44
  6. 6.Which number is the odd one out: 67, 62, 73, 61? (a) 67 (b) 62 (c) 73 (d) 61
  7. 7.Which number is the odd one out: 23, 19, 11, 70? (a) 23 (b) 19 (c) 11 (d) 70
  8. 8.Which number is the odd one out: 52, 80, 53, 40? (a) 52 (b) 80 (c) 53 (d) 40
  9. 9.Which number is the odd one out: 30, 56, 18, 90? (a) 30 (b) 56 (c) 18 (d) 90
  10. 10.Which number is the odd one out: 72, 90, 8, 40? (a) 72 (b) 90 (c) 8 (d) 40
  11. 11.Which number is the odd one out: 40, 83, 2, 79? (a) 40 (b) 83 (c) 2 (d) 79
  12. 12.Which number is the odd one out: 36, 91, 9, 77? (a) 36 (b) 91 (c) 9 (d) 77
  13. 13.Which number is the odd one out: 6, 40, 48, 20? (a) 6 (b) 40 (c) 48 (d) 20
  14. 14.Which number is the odd one out: 68, 9, 27, 81? (a) 68 (b) 9 (c) 27 (d) 81
  15. 15.Which number is the odd one out: 41, 28, 7, 23? (a) 41 (b) 28 (c) 7 (d) 23
  16. 16.Which number is the odd one out: 52, 92, 34, 17? (a) 52 (b) 92 (c) 34 (d) 17
  17. 17.Which number is the odd one out: 43, 17, 32, 47? (a) 43 (b) 17 (c) 32 (d) 47
  18. 18.Which number is the odd one out: 8, 40, 55, 32? (a) 8 (b) 40 (c) 55 (d) 32
  19. 19.Which number is the odd one out: 47, 97, 6, 41? (a) 47 (b) 97 (c) 6 (d) 41
  20. 20.Which number is the odd one out: 55, 43, 17, 61? (a) 55 (b) 43 (c) 17 (d) 61
  21. 21.Which number is the odd one out: 98, 70, 77, 55? (a) 98 (b) 70 (c) 77 (d) 55
  22. 22.Which number is the odd one out: 19, 53, 70, 35? (a) 19 (b) 53 (c) 70 (d) 35
  23. 23.Which number is the odd one out: 13, 73, 94, 17? (a) 13 (b) 73 (c) 94 (d) 17
  24. 24.Which number is the odd one out: 55, 85, 65, 22? (a) 55 (b) 85 (c) 65 (d) 22
  25. 25.Which number is the odd one out: 81, 29, 99, 9? (a) 81 (b) 29 (c) 99 (d) 9
  26. 26.Which number is the odd one out: 40, 80, 88, 26? (a) 40 (b) 80 (c) 88 (d) 26
  27. 27.Which number is the odd one out: 68, 15, 20, 44? (a) 68 (b) 15 (c) 20 (d) 44
  28. 28.Which number is the odd one out: 55, 19, 11, 53? (a) 55 (b) 19 (c) 11 (d) 53
  29. 29.Which number is the odd one out: 96, 73, 43, 11? (a) 96 (b) 73 (c) 43 (d) 11
  30. 30.Which number is the odd one out: 59, 53, 64, 97? (a) 59 (b) 53 (c) 64 (d) 97
  31. 31.Which number is the odd one out: 11, 52, 59, 83? (a) 11 (b) 52 (c) 59 (d) 83
  32. 32.Which number is the odd one out: 9, 81, 48, 36? (a) 9 (b) 81 (c) 48 (d) 36
  33. 33.Which number is the odd one out: 54, 29, 79, 23? (a) 54 (b) 29 (c) 79 (d) 23
  34. 34.Which number is the odd one out: 90, 30, 71, 45? (a) 90 (b) 30 (c) 71 (d) 45
  35. 35.Which number is the odd one out: 37, 89, 11, 8? (a) 37 (b) 89 (c) 11 (d) 8
  36. 36.Which number is the odd one out: 31, 83, 94, 47? (a) 31 (b) 83 (c) 94 (d) 47
  37. 37.Which number is the odd one out: 49, 9, 7, 81? (a) 49 (b) 9 (c) 7 (d) 81
  38. 38.Which number is the odd one out: 19, 73, 13, 22? (a) 19 (b) 73 (c) 13 (d) 22
  39. 39.Which number is the odd one out: 19, 31, 71, 76? (a) 19 (b) 31 (c) 71 (d) 76
  40. 40.Which number is the odd one out: 53, 71, 4, 73? (a) 53 (b) 71 (c) 4 (d) 73

Answer key

  1. 88
  2. 56
  3. 60
  4. 85
  5. 44
  6. 62
  7. 70
  8. 53
  9. 56
  10. 90
  11. 40
  12. 36
  13. 6
  14. 68
  15. 28
  16. 17
  17. 32
  18. 55
  19. 6
  20. 55
  21. 55
  22. 70
  23. 94
  24. 22
  25. 29
  26. 26
  27. 15
  28. 55
  29. 96
  30. 64
  31. 52
  32. 48
  33. 54
  34. 71
  35. 8
  36. 94
  37. 7
  38. 22
  39. 76
  40. 4

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