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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 121 · 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: 30, 66, 6, 65? (a) 30 (b) 66 (c) 6 (d) 65
  2. 2.Which number is the odd one out: 29, 2, 59, 84? (a) 29 (b) 2 (c) 59 (d) 84
  3. 3.Which number is the odd one out: 57, 8, 39, 51? (a) 57 (b) 8 (c) 39 (d) 51
  4. 4.Which number is the odd one out: 39, 41, 3, 11? (a) 39 (b) 41 (c) 3 (d) 11
  5. 5.Which number is the odd one out: 68, 15, 69, 75? (a) 68 (b) 15 (c) 69 (d) 75
  6. 6.Which number is the odd one out: 61, 41, 79, 64? (a) 61 (b) 41 (c) 79 (d) 64
  7. 7.Which number is the odd one out: 64, 8, 16, 2? (a) 64 (b) 8 (c) 16 (d) 2
  8. 8.Which number is the odd one out: 19, 45, 97, 59? (a) 19 (b) 45 (c) 97 (d) 59
  9. 9.Which number is the odd one out: 47, 2, 64, 11? (a) 47 (b) 2 (c) 64 (d) 11
  10. 10.Which number is the odd one out: 60, 12, 30, 27? (a) 60 (b) 12 (c) 30 (d) 27
  11. 11.Which number is the odd one out: 19, 73, 83, 39? (a) 19 (b) 73 (c) 83 (d) 39
  12. 12.Which number is the odd one out: 32, 40, 31, 80? (a) 32 (b) 40 (c) 31 (d) 80
  13. 13.Which number is the odd one out: 31, 79, 94, 11? (a) 31 (b) 79 (c) 94 (d) 11
  14. 14.Which number is the odd one out: 43, 17, 53, 4? (a) 43 (b) 17 (c) 53 (d) 4
  15. 15.Which number is the odd one out: 73, 20, 79, 11? (a) 73 (b) 20 (c) 79 (d) 11
  16. 16.Which number is the odd one out: 17, 61, 29, 75? (a) 17 (b) 61 (c) 29 (d) 75
  17. 17.Which number is the odd one out: 59, 66, 24, 48? (a) 59 (b) 66 (c) 24 (d) 48
  18. 18.Which number is the odd one out: 65, 6, 85, 10? (a) 65 (b) 6 (c) 85 (d) 10
  19. 19.Which number is the odd one out: 97, 59, 21, 89? (a) 97 (b) 59 (c) 21 (d) 89
  20. 20.Which number is the odd one out: 2, 70, 31, 5? (a) 2 (b) 70 (c) 31 (d) 5
  21. 21.Which number is the odd one out: 13, 83, 53, 10? (a) 13 (b) 83 (c) 53 (d) 10
  22. 22.Which number is the odd one out: 75, 25, 64, 16? (a) 75 (b) 25 (c) 64 (d) 16
  23. 23.Which number is the odd one out: 70, 72, 63, 35? (a) 70 (b) 72 (c) 63 (d) 35
  24. 24.Which number is the odd one out: 60, 11, 71, 61? (a) 60 (b) 11 (c) 71 (d) 61
  25. 25.Which number is the odd one out: 73, 2, 61, 32? (a) 73 (b) 2 (c) 61 (d) 32
  26. 26.Which number is the odd one out: 29, 13, 37, 18? (a) 29 (b) 13 (c) 37 (d) 18
  27. 27.Which number is the odd one out: 99, 18, 27, 78? (a) 99 (b) 18 (c) 27 (d) 78
  28. 28.Which number is the odd one out: 31, 22, 71, 41? (a) 31 (b) 22 (c) 71 (d) 41
  29. 29.Which number is the odd one out: 19, 23, 47, 4? (a) 19 (b) 23 (c) 47 (d) 4
  30. 30.Which number is the odd one out: 19, 91, 77, 7? (a) 19 (b) 91 (c) 77 (d) 7
  31. 31.Which number is the odd one out: 53, 91, 13, 61? (a) 53 (b) 91 (c) 13 (d) 61
  32. 32.Which number is the odd one out: 79, 21, 89, 3? (a) 79 (b) 21 (c) 89 (d) 3
  33. 33.Which number is the odd one out: 51, 61, 73, 67? (a) 51 (b) 61 (c) 73 (d) 67
  34. 34.Which number is the odd one out: 93, 3, 89, 19? (a) 93 (b) 3 (c) 89 (d) 19
  35. 35.Which number is the odd one out: 81, 95, 9, 25? (a) 81 (b) 95 (c) 9 (d) 25
  36. 36.Which number is the odd one out: 82, 58, 55, 26? (a) 82 (b) 58 (c) 55 (d) 26
  37. 37.Which number is the odd one out: 41, 11, 83, 18? (a) 41 (b) 11 (c) 83 (d) 18
  38. 38.Which number is the odd one out: 3, 67, 18, 37? (a) 3 (b) 67 (c) 18 (d) 37
  39. 39.Which number is the odd one out: 29, 97, 31, 90? (a) 29 (b) 97 (c) 31 (d) 90
  40. 40.Which number is the odd one out: 17, 6, 73, 67? (a) 17 (b) 6 (c) 73 (d) 67

Answer key

  1. 65
  2. 84
  3. 8
  4. 39
  5. 68
  6. 64
  7. 2
  8. 45
  9. 64
  10. 27
  11. 39
  12. 31
  13. 94
  14. 4
  15. 20
  16. 75
  17. 59
  18. 6
  19. 21
  20. 70
  21. 10
  22. 75
  23. 72
  24. 60
  25. 32
  26. 18
  27. 78
  28. 22
  29. 4
  30. 19
  31. 91
  32. 21
  33. 51
  34. 93
  35. 95
  36. 55
  37. 18
  38. 18
  39. 90
  40. 6

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