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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 773 · 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: 9, 3, 41, 89? (a) 9 (b) 3 (c) 41 (d) 89
  2. 2.Which number is the odd one out: 31, 29, 43, 51? (a) 31 (b) 29 (c) 43 (d) 51
  3. 3.Which number is the odd one out: 68, 14, 28, 53? (a) 68 (b) 14 (c) 28 (d) 53
  4. 4.Which number is the odd one out: 79, 93, 61, 47? (a) 79 (b) 93 (c) 61 (d) 47
  5. 5.Which number is the odd one out: 96, 75, 55, 10? (a) 96 (b) 75 (c) 55 (d) 10
  6. 6.Which number is the odd one out: 24, 71, 37, 19? (a) 24 (b) 71 (c) 37 (d) 19
  7. 7.Which number is the odd one out: 3, 23, 19, 15? (a) 3 (b) 23 (c) 19 (d) 15
  8. 8.Which number is the odd one out: 31, 71, 34, 2? (a) 31 (b) 71 (c) 34 (d) 2
  9. 9.Which number is the odd one out: 29, 68, 41, 67? (a) 29 (b) 68 (c) 41 (d) 67
  10. 10.Which number is the odd one out: 60, 78, 6, 80? (a) 60 (b) 78 (c) 6 (d) 80
  11. 11.Which number is the odd one out: 67, 43, 41, 68? (a) 67 (b) 43 (c) 41 (d) 68
  12. 12.Which number is the odd one out: 17, 59, 6, 23? (a) 17 (b) 59 (c) 6 (d) 23
  13. 13.Which number is the odd one out: 6, 47, 59, 31? (a) 6 (b) 47 (c) 59 (d) 31
  14. 14.Which number is the odd one out: 51, 24, 96, 6? (a) 51 (b) 24 (c) 96 (d) 6
  15. 15.Which number is the odd one out: 2, 5, 20, 97? (a) 2 (b) 5 (c) 20 (d) 97
  16. 16.Which number is the odd one out: 62, 92, 76, 99? (a) 62 (b) 92 (c) 76 (d) 99
  17. 17.Which number is the odd one out: 32, 26, 77, 88? (a) 32 (b) 26 (c) 77 (d) 88
  18. 18.Which number is the odd one out: 17, 97, 12, 61? (a) 17 (b) 97 (c) 12 (d) 61
  19. 19.Which number is the odd one out: 31, 40, 17, 53? (a) 31 (b) 40 (c) 17 (d) 53
  20. 20.Which number is the odd one out: 36, 79, 71, 61? (a) 36 (b) 79 (c) 71 (d) 61
  21. 21.Which number is the odd one out: 20, 44, 50, 76? (a) 20 (b) 44 (c) 50 (d) 76
  22. 22.Which number is the odd one out: 71, 61, 43, 39? (a) 71 (b) 61 (c) 43 (d) 39
  23. 23.Which number is the odd one out: 53, 90, 97, 3? (a) 53 (b) 90 (c) 97 (d) 3
  24. 24.Which number is the odd one out: 97, 70, 50, 35? (a) 97 (b) 70 (c) 50 (d) 35
  25. 25.Which number is the odd one out: 24, 72, 79, 99? (a) 24 (b) 72 (c) 79 (d) 99
  26. 26.Which number is the odd one out: 95, 19, 2, 55? (a) 95 (b) 19 (c) 2 (d) 55
  27. 27.Which number is the odd one out: 53, 16, 29, 11? (a) 53 (b) 16 (c) 29 (d) 11
  28. 28.Which number is the odd one out: 97, 98, 29, 53? (a) 97 (b) 98 (c) 29 (d) 53
  29. 29.Which number is the odd one out: 70, 17, 73, 19? (a) 70 (b) 17 (c) 73 (d) 19
  30. 30.Which number is the odd one out: 81, 99, 31, 9? (a) 81 (b) 99 (c) 31 (d) 9
  31. 31.Which number is the odd one out: 59, 47, 85, 31? (a) 59 (b) 47 (c) 85 (d) 31
  32. 32.Which number is the odd one out: 89, 41, 53, 64? (a) 89 (b) 41 (c) 53 (d) 64
  33. 33.Which number is the odd one out: 17, 95, 67, 47? (a) 17 (b) 95 (c) 67 (d) 47
  34. 34.Which number is the odd one out: 87, 34, 76, 52? (a) 87 (b) 34 (c) 76 (d) 52
  35. 35.Which number is the odd one out: 8, 79, 17, 13? (a) 8 (b) 79 (c) 17 (d) 13
  36. 36.Which number is the odd one out: 48, 96, 24, 15? (a) 48 (b) 96 (c) 24 (d) 15
  37. 37.Which number is the odd one out: 77, 91, 40, 98? (a) 77 (b) 91 (c) 40 (d) 98
  38. 38.Which number is the odd one out: 72, 81, 9, 96? (a) 72 (b) 81 (c) 9 (d) 96
  39. 39.Which number is the odd one out: 59, 47, 48, 71? (a) 59 (b) 47 (c) 48 (d) 71
  40. 40.Which number is the odd one out: 8, 49, 48, 96? (a) 8 (b) 49 (c) 48 (d) 96

Answer key

  1. 9
  2. 51
  3. 53
  4. 93
  5. 96
  6. 24
  7. 15
  8. 34
  9. 68
  10. 80
  11. 68
  12. 6
  13. 6
  14. 51
  15. 20
  16. 99
  17. 77
  18. 12
  19. 40
  20. 36
  21. 50
  22. 39
  23. 90
  24. 97
  25. 79
  26. 2
  27. 16
  28. 98
  29. 70
  30. 31
  31. 85
  32. 64
  33. 95
  34. 87
  35. 8
  36. 15
  37. 40
  38. 96
  39. 48
  40. 49

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