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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 721 · 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: 97, 67, 37, 75? (a) 97 (b) 67 (c) 37 (d) 75
  2. 2.Which number is the odd one out: 24, 7, 96, 32? (a) 24 (b) 7 (c) 96 (d) 32
  3. 3.Which number is the odd one out: 31, 11, 17, 27? (a) 31 (b) 11 (c) 17 (d) 27
  4. 4.Which number is the odd one out: 43, 31, 47, 74? (a) 43 (b) 31 (c) 47 (d) 74
  5. 5.Which number is the odd one out: 8, 66, 60, 30? (a) 8 (b) 66 (c) 60 (d) 30
  6. 6.Which number is the odd one out: 2, 71, 11, 72? (a) 2 (b) 71 (c) 11 (d) 72
  7. 7.Which number is the odd one out: 54, 18, 72, 32? (a) 54 (b) 18 (c) 72 (d) 32
  8. 8.Which number is the odd one out: 10, 40, 8, 50? (a) 10 (b) 40 (c) 8 (d) 50
  9. 9.Which number is the odd one out: 32, 24, 48, 58? (a) 32 (b) 24 (c) 48 (d) 58
  10. 10.Which number is the odd one out: 58, 73, 61, 47? (a) 58 (b) 73 (c) 61 (d) 47
  11. 11.Which number is the odd one out: 79, 55, 85, 5? (a) 79 (b) 55 (c) 85 (d) 5
  12. 12.Which number is the odd one out: 53, 2, 94, 13? (a) 53 (b) 2 (c) 94 (d) 13
  13. 13.Which number is the odd one out: 33, 24, 51, 93? (a) 33 (b) 24 (c) 51 (d) 93
  14. 14.Which number is the odd one out: 53, 19, 41, 60? (a) 53 (b) 19 (c) 41 (d) 60
  15. 15.Which number is the odd one out: 16, 19, 79, 83? (a) 16 (b) 19 (c) 79 (d) 83
  16. 16.Which number is the odd one out: 73, 41, 3, 78? (a) 73 (b) 41 (c) 3 (d) 78
  17. 17.Which number is the odd one out: 65, 50, 35, 42? (a) 65 (b) 50 (c) 35 (d) 42
  18. 18.Which number is the odd one out: 71, 61, 28, 83? (a) 71 (b) 61 (c) 28 (d) 83
  19. 19.Which number is the odd one out: 71, 23, 78, 43? (a) 71 (b) 23 (c) 78 (d) 43
  20. 20.Which number is the odd one out: 61, 81, 37, 97? (a) 61 (b) 81 (c) 37 (d) 97
  21. 21.Which number is the odd one out: 96, 24, 32, 34? (a) 96 (b) 24 (c) 32 (d) 34
  22. 22.Which number is the odd one out: 97, 96, 73, 41? (a) 97 (b) 96 (c) 73 (d) 41
  23. 23.Which number is the odd one out: 8, 83, 48, 96? (a) 8 (b) 83 (c) 48 (d) 96
  24. 24.Which number is the odd one out: 66, 89, 71, 2? (a) 66 (b) 89 (c) 71 (d) 2
  25. 25.Which number is the odd one out: 29, 59, 17, 95? (a) 29 (b) 59 (c) 17 (d) 95
  26. 26.Which number is the odd one out: 11, 53, 13, 54? (a) 11 (b) 53 (c) 13 (d) 54
  27. 27.Which number is the odd one out: 43, 15, 23, 90? (a) 43 (b) 15 (c) 23 (d) 90
  28. 28.Which number is the odd one out: 71, 29, 42, 97? (a) 71 (b) 29 (c) 42 (d) 97
  29. 29.Which number is the odd one out: 94, 53, 73, 71? (a) 94 (b) 53 (c) 73 (d) 71
  30. 30.Which number is the odd one out: 75, 41, 61, 97? (a) 75 (b) 41 (c) 61 (d) 97
  31. 31.Which number is the odd one out: 88, 18, 72, 78? (a) 88 (b) 18 (c) 72 (d) 78
  32. 32.Which number is the odd one out: 19, 59, 97, 86? (a) 19 (b) 59 (c) 97 (d) 86
  33. 33.Which number is the odd one out: 49, 77, 81, 21? (a) 49 (b) 77 (c) 81 (d) 21
  34. 34.Which number is the odd one out: 53, 19, 99, 61? (a) 53 (b) 19 (c) 99 (d) 61
  35. 35.Which number is the odd one out: 36, 98, 77, 49? (a) 36 (b) 98 (c) 77 (d) 49
  36. 36.Which number is the odd one out: 67, 29, 65, 23? (a) 67 (b) 29 (c) 65 (d) 23
  37. 37.Which number is the odd one out: 95, 11, 53, 59? (a) 95 (b) 11 (c) 53 (d) 59
  38. 38.Which number is the odd one out: 19, 11, 40, 23? (a) 19 (b) 11 (c) 40 (d) 23
  39. 39.Which number is the odd one out: 29, 67, 64, 79? (a) 29 (b) 67 (c) 64 (d) 79
  40. 40.Which number is the odd one out: 13, 73, 70, 41? (a) 13 (b) 73 (c) 70 (d) 41

Answer key

  1. 75
  2. 7
  3. 27
  4. 74
  5. 8
  6. 72
  7. 32
  8. 8
  9. 58
  10. 58
  11. 79
  12. 94
  13. 24
  14. 60
  15. 16
  16. 78
  17. 42
  18. 28
  19. 78
  20. 81
  21. 34
  22. 96
  23. 83
  24. 66
  25. 95
  26. 54
  27. 90
  28. 42
  29. 94
  30. 75
  31. 88
  32. 86
  33. 81
  34. 99
  35. 36
  36. 65
  37. 95
  38. 40
  39. 64
  40. 70

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