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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 310 · 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: 64, 23, 4, 16? (a) 64 (b) 23 (c) 4 (d) 16
  2. 2.Which number is the odd one out: 17, 3, 61, 93? (a) 17 (b) 3 (c) 61 (d) 93
  3. 3.Which number is the odd one out: 18, 13, 53, 89? (a) 18 (b) 13 (c) 53 (d) 89
  4. 4.Which number is the odd one out: 7, 73, 19, 98? (a) 7 (b) 73 (c) 19 (d) 98
  5. 5.Which number is the odd one out: 17, 89, 82, 53? (a) 17 (b) 89 (c) 82 (d) 53
  6. 6.Which number is the odd one out: 29, 21, 3, 61? (a) 29 (b) 21 (c) 3 (d) 61
  7. 7.Which number is the odd one out: 97, 19, 4, 13? (a) 97 (b) 19 (c) 4 (d) 13
  8. 8.Which number is the odd one out: 45, 99, 75, 56? (a) 45 (b) 99 (c) 75 (d) 56
  9. 9.Which number is the odd one out: 80, 73, 23, 29? (a) 80 (b) 73 (c) 23 (d) 29
  10. 10.Which number is the odd one out: 5, 83, 59, 20? (a) 5 (b) 83 (c) 59 (d) 20
  11. 11.Which number is the odd one out: 73, 6, 83, 37? (a) 73 (b) 6 (c) 83 (d) 37
  12. 12.Which number is the odd one out: 23, 3, 89, 30? (a) 23 (b) 3 (c) 89 (d) 30
  13. 13.Which number is the odd one out: 17, 79, 82, 29? (a) 17 (b) 79 (c) 82 (d) 29
  14. 14.Which number is the odd one out: 32, 52, 80, 40? (a) 32 (b) 52 (c) 80 (d) 40
  15. 15.Which number is the odd one out: 43, 77, 11, 71? (a) 43 (b) 77 (c) 11 (d) 71
  16. 16.Which number is the odd one out: 35, 61, 5, 79? (a) 35 (b) 61 (c) 5 (d) 79
  17. 17.Which number is the odd one out: 4, 88, 18, 16? (a) 4 (b) 88 (c) 18 (d) 16
  18. 18.Which number is the odd one out: 25, 16, 65, 64? (a) 25 (b) 16 (c) 65 (d) 64
  19. 19.Which number is the odd one out: 44, 73, 23, 83? (a) 44 (b) 73 (c) 23 (d) 83
  20. 20.Which number is the odd one out: 37, 17, 59, 8? (a) 37 (b) 17 (c) 59 (d) 8
  21. 21.Which number is the odd one out: 31, 64, 23, 89? (a) 31 (b) 64 (c) 23 (d) 89
  22. 22.Which number is the odd one out: 36, 95, 50, 25? (a) 36 (b) 95 (c) 50 (d) 25
  23. 23.Which number is the odd one out: 47, 83, 67, 50? (a) 47 (b) 83 (c) 67 (d) 50
  24. 24.Which number is the odd one out: 64, 16, 32, 23? (a) 64 (b) 16 (c) 32 (d) 23
  25. 25.Which number is the odd one out: 30, 60, 73, 12? (a) 30 (b) 60 (c) 73 (d) 12
  26. 26.Which number is the odd one out: 41, 64, 4, 16? (a) 41 (b) 64 (c) 4 (d) 16
  27. 27.Which number is the odd one out: 48, 11, 96, 24? (a) 48 (b) 11 (c) 96 (d) 24
  28. 28.Which number is the odd one out: 47, 73, 43, 77? (a) 47 (b) 73 (c) 43 (d) 77
  29. 29.Which number is the odd one out: 95, 80, 24, 48? (a) 95 (b) 80 (c) 24 (d) 48
  30. 30.Which number is the odd one out: 60, 12, 42, 35? (a) 60 (b) 12 (c) 42 (d) 35
  31. 31.Which number is the odd one out: 14, 3, 79, 87? (a) 14 (b) 3 (c) 79 (d) 87
  32. 32.Which number is the odd one out: 16, 31, 61, 59? (a) 16 (b) 31 (c) 61 (d) 59
  33. 33.Which number is the odd one out: 59, 73, 67, 88? (a) 59 (b) 73 (c) 67 (d) 88
  34. 34.Which number is the odd one out: 61, 19, 12, 17? (a) 61 (b) 19 (c) 12 (d) 17
  35. 35.Which number is the odd one out: 71, 96, 23, 11? (a) 71 (b) 96 (c) 23 (d) 11
  36. 36.Which number is the odd one out: 96, 8, 24, 37? (a) 96 (b) 8 (c) 24 (d) 37
  37. 37.Which number is the odd one out: 45, 97, 41, 11? (a) 45 (b) 97 (c) 41 (d) 11
  38. 38.Which number is the odd one out: 32, 24, 18, 54? (a) 32 (b) 24 (c) 18 (d) 54
  39. 39.Which number is the odd one out: 73, 54, 97, 31? (a) 73 (b) 54 (c) 97 (d) 31
  40. 40.Which number is the odd one out: 3, 23, 93, 52? (a) 3 (b) 23 (c) 93 (d) 52

Answer key

  1. 23
  2. 93
  3. 18
  4. 98
  5. 82
  6. 21
  7. 4
  8. 56
  9. 80
  10. 20
  11. 6
  12. 30
  13. 82
  14. 52
  15. 77
  16. 35
  17. 18
  18. 65
  19. 44
  20. 8
  21. 64
  22. 36
  23. 50
  24. 23
  25. 73
  26. 41
  27. 11
  28. 77
  29. 95
  30. 35
  31. 14
  32. 16
  33. 88
  34. 12
  35. 96
  36. 37
  37. 45
  38. 32
  39. 54
  40. 52

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