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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 743 · 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: 64, 27, 16, 4? (a) 64 (b) 27 (c) 16 (d) 4
  2. 2.Which number is the odd one out: 95, 11, 17, 13? (a) 95 (b) 11 (c) 17 (d) 13
  3. 3.Which number is the odd one out: 29, 34, 61, 23? (a) 29 (b) 34 (c) 61 (d) 23
  4. 4.Which number is the odd one out: 75, 12, 95, 10? (a) 75 (b) 12 (c) 95 (d) 10
  5. 5.Which number is the odd one out: 63, 50, 21, 99? (a) 63 (b) 50 (c) 21 (d) 99
  6. 6.Which number is the odd one out: 16, 73, 97, 41? (a) 16 (b) 73 (c) 97 (d) 41
  7. 7.Which number is the odd one out: 89, 71, 91, 29? (a) 89 (b) 71 (c) 91 (d) 29
  8. 8.Which number is the odd one out: 53, 41, 4, 29? (a) 53 (b) 41 (c) 4 (d) 29
  9. 9.Which number is the odd one out: 13, 71, 47, 76? (a) 13 (b) 71 (c) 47 (d) 76
  10. 10.Which number is the odd one out: 88, 32, 28, 56? (a) 88 (b) 32 (c) 28 (d) 56
  11. 11.Which number is the odd one out: 31, 79, 17, 86? (a) 31 (b) 79 (c) 17 (d) 86
  12. 12.Which number is the odd one out: 79, 86, 67, 13? (a) 79 (b) 86 (c) 67 (d) 13
  13. 13.Which number is the odd one out: 67, 31, 99, 29? (a) 67 (b) 31 (c) 99 (d) 29
  14. 14.Which number is the odd one out: 47, 61, 90, 5? (a) 47 (b) 61 (c) 90 (d) 5
  15. 15.Which number is the odd one out: 39, 88, 80, 40? (a) 39 (b) 88 (c) 80 (d) 40
  16. 16.Which number is the odd one out: 53, 11, 17, 90? (a) 53 (b) 11 (c) 17 (d) 90
  17. 17.Which number is the odd one out: 69, 53, 17, 71? (a) 69 (b) 53 (c) 17 (d) 71
  18. 18.Which number is the odd one out: 11, 53, 92, 29? (a) 11 (b) 53 (c) 92 (d) 29
  19. 19.Which number is the odd one out: 83, 24, 47, 97? (a) 83 (b) 24 (c) 47 (d) 97
  20. 20.Which number is the odd one out: 71, 19, 23, 70? (a) 71 (b) 19 (c) 23 (d) 70
  21. 21.Which number is the odd one out: 23, 63, 31, 47? (a) 23 (b) 63 (c) 31 (d) 47
  22. 22.Which number is the odd one out: 48, 25, 10, 24? (a) 48 (b) 25 (c) 10 (d) 24
  23. 23.Which number is the odd one out: 72, 17, 31, 2? (a) 72 (b) 17 (c) 31 (d) 2
  24. 24.Which number is the odd one out: 19, 79, 39, 47? (a) 19 (b) 79 (c) 39 (d) 47
  25. 25.Which number is the odd one out: 59, 89, 2, 48? (a) 59 (b) 89 (c) 2 (d) 48
  26. 26.Which number is the odd one out: 71, 94, 53, 23? (a) 71 (b) 94 (c) 53 (d) 23
  27. 27.Which number is the odd one out: 64, 16, 54, 4? (a) 64 (b) 16 (c) 54 (d) 4
  28. 28.Which number is the odd one out: 61, 67, 41, 60? (a) 61 (b) 67 (c) 41 (d) 60
  29. 29.Which number is the odd one out: 54, 83, 18, 6? (a) 54 (b) 83 (c) 18 (d) 6
  30. 30.Which number is the odd one out: 23, 71, 3, 18? (a) 23 (b) 71 (c) 3 (d) 18
  31. 31.Which number is the odd one out: 24, 56, 35, 96? (a) 24 (b) 56 (c) 35 (d) 96
  32. 32.Which number is the odd one out: 65, 24, 6, 48? (a) 65 (b) 24 (c) 6 (d) 48
  33. 33.Which number is the odd one out: 96, 71, 73, 11? (a) 96 (b) 71 (c) 73 (d) 11
  34. 34.Which number is the odd one out: 11, 46, 79, 61? (a) 11 (b) 46 (c) 79 (d) 61
  35. 35.Which number is the odd one out: 29, 68, 41, 11? (a) 29 (b) 68 (c) 41 (d) 11
  36. 36.Which number is the odd one out: 65, 79, 80, 40? (a) 65 (b) 79 (c) 80 (d) 40
  37. 37.Which number is the odd one out: 66, 2, 23, 53? (a) 66 (b) 2 (c) 23 (d) 53
  38. 38.Which number is the odd one out: 56, 13, 17, 97? (a) 56 (b) 13 (c) 17 (d) 97
  39. 39.Which number is the odd one out: 28, 47, 59, 17? (a) 28 (b) 47 (c) 59 (d) 17
  40. 40.Which number is the odd one out: 5, 79, 97, 80? (a) 5 (b) 79 (c) 97 (d) 80

Answer key

  1. 27
  2. 95
  3. 34
  4. 12
  5. 50
  6. 16
  7. 91
  8. 4
  9. 76
  10. 28
  11. 86
  12. 86
  13. 99
  14. 90
  15. 39
  16. 90
  17. 69
  18. 92
  19. 24
  20. 70
  21. 63
  22. 25
  23. 72
  24. 39
  25. 48
  26. 94
  27. 54
  28. 60
  29. 83
  30. 18
  31. 35
  32. 65
  33. 96
  34. 46
  35. 68
  36. 79
  37. 66
  38. 56
  39. 28
  40. 80

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