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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 146 · 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: 25, 5, 37, 29? (a) 25 (b) 5 (c) 37 (d) 29
  2. 2.Which number is the odd one out: 2, 43, 37, 90? (a) 2 (b) 43 (c) 37 (d) 90
  3. 3.Which number is the odd one out: 79, 71, 77, 13? (a) 79 (b) 71 (c) 77 (d) 13
  4. 4.Which number is the odd one out: 60, 73, 69, 61? (a) 60 (b) 73 (c) 69 (d) 61
  5. 5.Which number is the odd one out: 14, 98, 91, 59? (a) 14 (b) 98 (c) 91 (d) 59
  6. 6.Which number is the odd one out: 24, 73, 79, 89? (a) 24 (b) 73 (c) 79 (d) 89
  7. 7.Which number is the odd one out: 79, 24, 96, 48? (a) 79 (b) 24 (c) 96 (d) 48
  8. 8.Which number is the odd one out: 47, 17, 65, 90? (a) 47 (b) 17 (c) 65 (d) 90
  9. 9.Which number is the odd one out: 6, 12, 40, 66? (a) 6 (b) 12 (c) 40 (d) 66
  10. 10.Which number is the odd one out: 41, 17, 49, 31? (a) 41 (b) 17 (c) 49 (d) 31
  11. 11.Which number is the odd one out: 27, 99, 60, 54? (a) 27 (b) 99 (c) 60 (d) 54
  12. 12.Which number is the odd one out: 61, 97, 6, 3? (a) 61 (b) 97 (c) 6 (d) 3
  13. 13.Which number is the odd one out: 51, 27, 9, 81? (a) 51 (b) 27 (c) 9 (d) 81
  14. 14.Which number is the odd one out: 47, 33, 71, 23? (a) 47 (b) 33 (c) 71 (d) 23
  15. 15.Which number is the odd one out: 79, 11, 63, 53? (a) 79 (b) 11 (c) 63 (d) 53
  16. 16.Which number is the odd one out: 17, 14, 7, 83? (a) 17 (b) 14 (c) 7 (d) 83
  17. 17.Which number is the odd one out: 61, 13, 73, 87? (a) 61 (b) 13 (c) 73 (d) 87
  18. 18.Which number is the odd one out: 65, 15, 75, 46? (a) 65 (b) 15 (c) 75 (d) 46
  19. 19.Which number is the odd one out: 85, 54, 50, 45? (a) 85 (b) 54 (c) 50 (d) 45
  20. 20.Which number is the odd one out: 72, 13, 29, 57? (a) 72 (b) 13 (c) 29 (d) 57
  21. 21.Which number is the odd one out: 23, 83, 40, 71? (a) 23 (b) 83 (c) 40 (d) 71
  22. 22.Which number is the odd one out: 98, 7, 73, 41? (a) 98 (b) 7 (c) 73 (d) 41
  23. 23.Which number is the odd one out: 59, 99, 11, 47? (a) 59 (b) 99 (c) 11 (d) 47
  24. 24.Which number is the odd one out: 11, 4, 59, 97? (a) 11 (b) 4 (c) 59 (d) 97
  25. 25.Which number is the odd one out: 19, 50, 95, 37? (a) 19 (b) 50 (c) 95 (d) 37
  26. 26.Which number is the odd one out: 11, 53, 62, 71? (a) 11 (b) 53 (c) 62 (d) 71
  27. 27.Which number is the odd one out: 83, 79, 47, 9? (a) 83 (b) 79 (c) 47 (d) 9
  28. 28.Which number is the odd one out: 73, 31, 29, 10? (a) 73 (b) 31 (c) 29 (d) 10
  29. 29.Which number is the odd one out: 46, 19, 47, 89? (a) 46 (b) 19 (c) 47 (d) 89
  30. 30.Which number is the odd one out: 97, 70, 73, 41? (a) 97 (b) 70 (c) 73 (d) 41
  31. 31.Which number is the odd one out: 22, 34, 9, 58? (a) 22 (b) 34 (c) 9 (d) 58
  32. 32.Which number is the odd one out: 60, 84, 35, 66? (a) 60 (b) 84 (c) 35 (d) 66
  33. 33.Which number is the odd one out: 67, 31, 2, 16? (a) 67 (b) 31 (c) 2 (d) 16
  34. 34.Which number is the odd one out: 34, 21, 32, 8? (a) 34 (b) 21 (c) 32 (d) 8
  35. 35.Which number is the odd one out: 67, 37, 44, 41? (a) 67 (b) 37 (c) 44 (d) 41
  36. 36.Which number is the odd one out: 55, 5, 73, 17? (a) 55 (b) 5 (c) 73 (d) 17
  37. 37.Which number is the odd one out: 79, 37, 50, 97? (a) 79 (b) 37 (c) 50 (d) 97
  38. 38.Which number is the odd one out: 90, 48, 80, 88? (a) 90 (b) 48 (c) 80 (d) 88
  39. 39.Which number is the odd one out: 23, 70, 7, 47? (a) 23 (b) 70 (c) 7 (d) 47
  40. 40.Which number is the odd one out: 78, 53, 24, 48? (a) 78 (b) 53 (c) 24 (d) 48

Answer key

  1. 25
  2. 90
  3. 77
  4. 60
  5. 59
  6. 24
  7. 79
  8. 90
  9. 40
  10. 49
  11. 60
  12. 6
  13. 51
  14. 33
  15. 63
  16. 14
  17. 87
  18. 46
  19. 54
  20. 72
  21. 40
  22. 98
  23. 99
  24. 4
  25. 50
  26. 62
  27. 9
  28. 10
  29. 46
  30. 70
  31. 9
  32. 35
  33. 16
  34. 21
  35. 44
  36. 55
  37. 50
  38. 90
  39. 70
  40. 53

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