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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 480 · 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: 41, 95, 40, 67? (a) 41 (b) 95 (c) 40 (d) 67
  2. 2.Which number is the odd one out: 32, 55, 88, 46? (a) 32 (b) 55 (c) 88 (d) 46
  3. 3.Which number is the odd one out: 66, 37, 17, 29? (a) 66 (b) 37 (c) 17 (d) 29
  4. 4.Which number is the odd one out: 91, 49, 36, 63? (a) 91 (b) 49 (c) 36 (d) 63
  5. 5.Which number is the odd one out: 23, 33, 17, 3? (a) 23 (b) 33 (c) 17 (d) 3
  6. 6.Which number is the odd one out: 85, 16, 64, 8? (a) 85 (b) 16 (c) 64 (d) 8
  7. 7.Which number is the odd one out: 81, 13, 59, 79? (a) 81 (b) 13 (c) 59 (d) 79
  8. 8.Which number is the odd one out: 61, 47, 79, 30? (a) 61 (b) 47 (c) 79 (d) 30
  9. 9.Which number is the odd one out: 31, 89, 90, 17? (a) 31 (b) 89 (c) 90 (d) 17
  10. 10.Which number is the odd one out: 43, 47, 77, 7? (a) 43 (b) 47 (c) 77 (d) 7
  11. 11.Which number is the odd one out: 73, 5, 29, 10? (a) 73 (b) 5 (c) 29 (d) 10
  12. 12.Which number is the odd one out: 23, 4, 19, 71? (a) 23 (b) 4 (c) 19 (d) 71
  13. 13.Which number is the odd one out: 89, 14, 8, 56? (a) 89 (b) 14 (c) 8 (d) 56
  14. 14.Which number is the odd one out: 73, 71, 68, 43? (a) 73 (b) 71 (c) 68 (d) 43
  15. 15.Which number is the odd one out: 97, 11, 80, 13? (a) 97 (b) 11 (c) 80 (d) 13
  16. 16.Which number is the odd one out: 79, 47, 59, 48? (a) 79 (b) 47 (c) 59 (d) 48
  17. 17.Which number is the odd one out: 24, 41, 53, 47? (a) 24 (b) 41 (c) 53 (d) 47
  18. 18.Which number is the odd one out: 89, 29, 3, 87? (a) 89 (b) 29 (c) 3 (d) 87
  19. 19.Which number is the odd one out: 65, 41, 43, 79? (a) 65 (b) 41 (c) 43 (d) 79
  20. 20.Which number is the odd one out: 64, 4, 16, 6? (a) 64 (b) 4 (c) 16 (d) 6
  21. 21.Which number is the odd one out: 81, 26, 9, 39? (a) 81 (b) 26 (c) 9 (d) 39
  22. 22.Which number is the odd one out: 5, 95, 10, 2? (a) 5 (b) 95 (c) 10 (d) 2
  23. 23.Which number is the odd one out: 97, 67, 24, 31? (a) 97 (b) 67 (c) 24 (d) 31
  24. 24.Which number is the odd one out: 89, 69, 41, 29? (a) 89 (b) 69 (c) 41 (d) 29
  25. 25.Which number is the odd one out: 64, 23, 16, 4? (a) 64 (b) 23 (c) 16 (d) 4
  26. 26.Which number is the odd one out: 46, 77, 35, 65? (a) 46 (b) 77 (c) 35 (d) 65
  27. 27.Which number is the odd one out: 71, 41, 34, 53? (a) 71 (b) 41 (c) 34 (d) 53
  28. 28.Which number is the odd one out: 56, 76, 21, 8? (a) 56 (b) 76 (c) 21 (d) 8
  29. 29.Which number is the odd one out: 17, 62, 19, 73? (a) 17 (b) 62 (c) 19 (d) 73
  30. 30.Which number is the odd one out: 23, 60, 55, 19? (a) 23 (b) 60 (c) 55 (d) 19
  31. 31.Which number is the odd one out: 23, 12, 2, 83? (a) 23 (b) 12 (c) 2 (d) 83
  32. 32.Which number is the odd one out: 54, 48, 79, 72? (a) 54 (b) 48 (c) 79 (d) 72
  33. 33.Which number is the odd one out: 79, 37, 25, 11? (a) 79 (b) 37 (c) 25 (d) 11
  34. 34.Which number is the odd one out: 66, 32, 88, 52? (a) 66 (b) 32 (c) 88 (d) 52
  35. 35.Which number is the odd one out: 6, 10, 78, 66? (a) 6 (b) 10 (c) 78 (d) 66
  36. 36.Which number is the odd one out: 73, 67, 90, 83? (a) 73 (b) 67 (c) 90 (d) 83
  37. 37.Which number is the odd one out: 17, 30, 5, 71? (a) 17 (b) 30 (c) 5 (d) 71
  38. 38.Which number is the odd one out: 43, 17, 23, 64? (a) 43 (b) 17 (c) 23 (d) 64
  39. 39.Which number is the odd one out: 61, 30, 59, 97? (a) 61 (b) 30 (c) 59 (d) 97
  40. 40.Which number is the odd one out: 11, 78, 59, 89? (a) 11 (b) 78 (c) 59 (d) 89

Answer key

  1. 40
  2. 55
  3. 66
  4. 36
  5. 33
  6. 85
  7. 81
  8. 30
  9. 90
  10. 77
  11. 10
  12. 4
  13. 89
  14. 68
  15. 80
  16. 48
  17. 24
  18. 87
  19. 65
  20. 6
  21. 26
  22. 2
  23. 24
  24. 69
  25. 23
  26. 46
  27. 34
  28. 21
  29. 62
  30. 60
  31. 12
  32. 79
  33. 25
  34. 66
  35. 10
  36. 90
  37. 30
  38. 64
  39. 30
  40. 78

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