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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 851 · 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: 24, 98, 8, 48? (a) 24 (b) 98 (c) 8 (d) 48
  2. 2.Which number is the odd one out: 23, 93, 78, 19? (a) 23 (b) 93 (c) 78 (d) 19
  3. 3.Which number is the odd one out: 96, 72, 99, 48? (a) 96 (b) 72 (c) 99 (d) 48
  4. 4.Which number is the odd one out: 13, 36, 89, 53? (a) 13 (b) 36 (c) 89 (d) 53
  5. 5.Which number is the odd one out: 23, 19, 41, 14? (a) 23 (b) 19 (c) 41 (d) 14
  6. 6.Which number is the odd one out: 5, 72, 54, 96? (a) 5 (b) 72 (c) 54 (d) 96
  7. 7.Which number is the odd one out: 30, 89, 59, 83? (a) 30 (b) 89 (c) 59 (d) 83
  8. 8.Which number is the odd one out: 61, 23, 36, 79? (a) 61 (b) 23 (c) 36 (d) 79
  9. 9.Which number is the odd one out: 53, 91, 59, 14? (a) 53 (b) 91 (c) 59 (d) 14
  10. 10.Which number is the odd one out: 72, 70, 35, 21? (a) 72 (b) 70 (c) 35 (d) 21
  11. 11.Which number is the odd one out: 78, 61, 17, 19? (a) 78 (b) 61 (c) 17 (d) 19
  12. 12.Which number is the odd one out: 65, 31, 61, 11? (a) 65 (b) 31 (c) 61 (d) 11
  13. 13.Which number is the odd one out: 16, 64, 4, 55? (a) 16 (b) 64 (c) 4 (d) 55
  14. 14.Which number is the odd one out: 62, 75, 51, 15? (a) 62 (b) 75 (c) 51 (d) 15
  15. 15.Which number is the odd one out: 60, 53, 89, 37? (a) 60 (b) 53 (c) 89 (d) 37
  16. 16.Which number is the odd one out: 80, 65, 88, 55? (a) 80 (b) 65 (c) 88 (d) 55
  17. 17.Which number is the odd one out: 21, 14, 90, 91? (a) 21 (b) 14 (c) 90 (d) 91
  18. 18.Which number is the odd one out: 16, 41, 83, 59? (a) 16 (b) 41 (c) 83 (d) 59
  19. 19.Which number is the odd one out: 88, 56, 47, 28? (a) 88 (b) 56 (c) 47 (d) 28
  20. 20.Which number is the odd one out: 47, 61, 79, 77? (a) 47 (b) 61 (c) 79 (d) 77
  21. 21.Which number is the odd one out: 95, 30, 55, 48? (a) 95 (b) 30 (c) 55 (d) 48
  22. 22.Which number is the odd one out: 83, 71, 89, 70? (a) 83 (b) 71 (c) 89 (d) 70
  23. 23.Which number is the odd one out: 85, 67, 47, 59? (a) 85 (b) 67 (c) 47 (d) 59
  24. 24.Which number is the odd one out: 31, 19, 42, 83? (a) 31 (b) 19 (c) 42 (d) 83
  25. 25.Which number is the odd one out: 39, 45, 70, 99? (a) 39 (b) 45 (c) 70 (d) 99
  26. 26.Which number is the odd one out: 18, 67, 78, 54? (a) 18 (b) 67 (c) 78 (d) 54
  27. 27.Which number is the odd one out: 67, 41, 52, 13? (a) 67 (b) 41 (c) 52 (d) 13
  28. 28.Which number is the odd one out: 19, 17, 35, 37? (a) 19 (b) 17 (c) 35 (d) 37
  29. 29.Which number is the odd one out: 61, 53, 56, 97? (a) 61 (b) 53 (c) 56 (d) 97
  30. 30.Which number is the odd one out: 70, 36, 35, 45? (a) 70 (b) 36 (c) 35 (d) 45
  31. 31.Which number is the odd one out: 71, 6, 13, 19? (a) 71 (b) 6 (c) 13 (d) 19
  32. 32.Which number is the odd one out: 50, 76, 96, 24? (a) 50 (b) 76 (c) 96 (d) 24
  33. 33.Which number is the odd one out: 11, 20, 19, 23? (a) 11 (b) 20 (c) 19 (d) 23
  34. 34.Which number is the odd one out: 32, 2, 59, 17? (a) 32 (b) 2 (c) 59 (d) 17
  35. 35.Which number is the odd one out: 2, 7, 89, 14? (a) 2 (b) 7 (c) 89 (d) 14
  36. 36.Which number is the odd one out: 67, 61, 97, 21? (a) 67 (b) 61 (c) 97 (d) 21
  37. 37.Which number is the odd one out: 32, 96, 5, 66? (a) 32 (b) 96 (c) 5 (d) 66
  38. 38.Which number is the odd one out: 33, 28, 3, 89? (a) 33 (b) 28 (c) 3 (d) 89
  39. 39.Which number is the odd one out: 17, 11, 55, 90? (a) 17 (b) 11 (c) 55 (d) 90
  40. 40.Which number is the odd one out: 14, 53, 89, 97? (a) 14 (b) 53 (c) 89 (d) 97

Answer key

  1. 98
  2. 78
  3. 99
  4. 36
  5. 14
  6. 5
  7. 30
  8. 36
  9. 14
  10. 72
  11. 78
  12. 65
  13. 55
  14. 62
  15. 60
  16. 88
  17. 90
  18. 16
  19. 47
  20. 77
  21. 48
  22. 70
  23. 85
  24. 42
  25. 70
  26. 67
  27. 52
  28. 35
  29. 56
  30. 36
  31. 6
  32. 50
  33. 20
  34. 32
  35. 14
  36. 21
  37. 5
  38. 28
  39. 90
  40. 14

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