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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 139 · 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: 4, 9, 8, 81? (a) 4 (b) 9 (c) 8 (d) 81
  2. 2.Which number is the odd one out: 3, 51, 59, 43? (a) 3 (b) 51 (c) 59 (d) 43
  3. 3.Which number is the odd one out: 89, 63, 71, 23? (a) 89 (b) 63 (c) 71 (d) 23
  4. 4.Which number is the odd one out: 29, 9, 47, 43? (a) 29 (b) 9 (c) 47 (d) 43
  5. 5.Which number is the odd one out: 37, 25, 13, 5? (a) 37 (b) 25 (c) 13 (d) 5
  6. 6.Which number is the odd one out: 37, 90, 59, 51? (a) 37 (b) 90 (c) 59 (d) 51
  7. 7.Which number is the odd one out: 99, 55, 90, 78? (a) 99 (b) 55 (c) 90 (d) 78
  8. 8.Which number is the odd one out: 22, 34, 7, 38? (a) 22 (b) 34 (c) 7 (d) 38
  9. 9.Which number is the odd one out: 61, 11, 57, 43? (a) 61 (b) 11 (c) 57 (d) 43
  10. 10.Which number is the odd one out: 59, 23, 34, 11? (a) 59 (b) 23 (c) 34 (d) 11
  11. 11.Which number is the odd one out: 98, 17, 23, 89? (a) 98 (b) 17 (c) 23 (d) 89
  12. 12.Which number is the odd one out: 28, 78, 12, 66? (a) 28 (b) 78 (c) 12 (d) 66
  13. 13.Which number is the odd one out: 79, 53, 97, 6? (a) 79 (b) 53 (c) 97 (d) 6
  14. 14.Which number is the odd one out: 93, 59, 97, 73? (a) 93 (b) 59 (c) 97 (d) 73
  15. 15.Which number is the odd one out: 73, 17, 40, 11? (a) 73 (b) 17 (c) 40 (d) 11
  16. 16.Which number is the odd one out: 13, 89, 73, 14? (a) 13 (b) 89 (c) 73 (d) 14
  17. 17.Which number is the odd one out: 54, 30, 35, 18? (a) 54 (b) 30 (c) 35 (d) 18
  18. 18.Which number is the odd one out: 16, 8, 20, 64? (a) 16 (b) 8 (c) 20 (d) 64
  19. 19.Which number is the odd one out: 37, 40, 13, 71? (a) 37 (b) 40 (c) 13 (d) 71
  20. 20.Which number is the odd one out: 13, 41, 67, 72? (a) 13 (b) 41 (c) 67 (d) 72
  21. 21.Which number is the odd one out: 59, 61, 11, 39? (a) 59 (b) 61 (c) 11 (d) 39
  22. 22.Which number is the odd one out: 59, 17, 5, 60? (a) 59 (b) 17 (c) 5 (d) 60
  23. 23.Which number is the odd one out: 94, 74, 38, 45? (a) 94 (b) 74 (c) 38 (d) 45
  24. 24.Which number is the odd one out: 6, 53, 31, 37? (a) 6 (b) 53 (c) 31 (d) 37
  25. 25.Which number is the odd one out: 16, 64, 4, 58? (a) 16 (b) 64 (c) 4 (d) 58
  26. 26.Which number is the odd one out: 18, 62, 54, 66? (a) 18 (b) 62 (c) 54 (d) 66
  27. 27.Which number is the odd one out: 12, 29, 59, 89? (a) 12 (b) 29 (c) 59 (d) 89
  28. 28.Which number is the odd one out: 38, 53, 61, 31? (a) 38 (b) 53 (c) 61 (d) 31
  29. 29.Which number is the odd one out: 73, 30, 31, 13? (a) 73 (b) 30 (c) 31 (d) 13
  30. 30.Which number is the odd one out: 41, 97, 47, 56? (a) 41 (b) 97 (c) 47 (d) 56
  31. 31.Which number is the odd one out: 79, 96, 13, 97? (a) 79 (b) 96 (c) 13 (d) 97
  32. 32.Which number is the odd one out: 55, 33, 36, 25? (a) 55 (b) 33 (c) 36 (d) 25
  33. 33.Which number is the odd one out: 89, 79, 34, 61? (a) 89 (b) 79 (c) 34 (d) 61
  34. 34.Which number is the odd one out: 48, 19, 11, 43? (a) 48 (b) 19 (c) 11 (d) 43
  35. 35.Which number is the odd one out: 81, 60, 9, 54? (a) 81 (b) 60 (c) 9 (d) 54
  36. 36.Which number is the odd one out: 19, 71, 14, 7? (a) 19 (b) 71 (c) 14 (d) 7
  37. 37.Which number is the odd one out: 68, 79, 31, 61? (a) 68 (b) 79 (c) 31 (d) 61
  38. 38.Which number is the odd one out: 19, 47, 27, 97? (a) 19 (b) 47 (c) 27 (d) 97
  39. 39.Which number is the odd one out: 83, 2, 92, 97? (a) 83 (b) 2 (c) 92 (d) 97
  40. 40.Which number is the odd one out: 47, 94, 73, 53? (a) 47 (b) 94 (c) 73 (d) 53

Answer key

  1. 8
  2. 51
  3. 63
  4. 9
  5. 25
  6. 90
  7. 55
  8. 7
  9. 57
  10. 34
  11. 98
  12. 28
  13. 6
  14. 93
  15. 40
  16. 14
  17. 35
  18. 20
  19. 40
  20. 72
  21. 39
  22. 60
  23. 45
  24. 6
  25. 58
  26. 62
  27. 12
  28. 38
  29. 30
  30. 56
  31. 96
  32. 36
  33. 34
  34. 48
  35. 60
  36. 14
  37. 68
  38. 27
  39. 92
  40. 94

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