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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 900 · 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: 60, 24, 96, 50? (a) 60 (b) 24 (c) 96 (d) 50
  2. 2.Which number is the odd one out: 8, 4, 61, 16? (a) 8 (b) 4 (c) 61 (d) 16
  3. 3.Which number is the odd one out: 29, 13, 69, 60? (a) 29 (b) 13 (c) 69 (d) 60
  4. 4.Which number is the odd one out: 41, 89, 21, 61? (a) 41 (b) 89 (c) 21 (d) 61
  5. 5.Which number is the odd one out: 79, 73, 84, 31? (a) 79 (b) 73 (c) 84 (d) 31
  6. 6.Which number is the odd one out: 8, 14, 84, 48? (a) 8 (b) 14 (c) 84 (d) 48
  7. 7.Which number is the odd one out: 53, 74, 73, 79? (a) 53 (b) 74 (c) 73 (d) 79
  8. 8.Which number is the odd one out: 31, 43, 4, 67? (a) 31 (b) 43 (c) 4 (d) 67
  9. 9.Which number is the odd one out: 40, 45, 64, 16? (a) 40 (b) 45 (c) 64 (d) 16
  10. 10.Which number is the odd one out: 57, 69, 67, 3? (a) 57 (b) 69 (c) 67 (d) 3
  11. 11.Which number is the odd one out: 72, 91, 28, 63? (a) 72 (b) 91 (c) 28 (d) 63
  12. 12.Which number is the odd one out: 5, 80, 71, 31? (a) 5 (b) 80 (c) 71 (d) 31
  13. 13.Which number is the odd one out: 55, 65, 18, 85? (a) 55 (b) 65 (c) 18 (d) 85
  14. 14.Which number is the odd one out: 97, 59, 25, 23? (a) 97 (b) 59 (c) 25 (d) 23
  15. 15.Which number is the odd one out: 92, 20, 55, 95? (a) 92 (b) 20 (c) 55 (d) 95
  16. 16.Which number is the odd one out: 33, 26, 93, 51? (a) 33 (b) 26 (c) 93 (d) 51
  17. 17.Which number is the odd one out: 45, 99, 63, 35? (a) 45 (b) 99 (c) 63 (d) 35
  18. 18.Which number is the odd one out: 54, 45, 90, 47? (a) 54 (b) 45 (c) 90 (d) 47
  19. 19.Which number is the odd one out: 12, 90, 45, 99? (a) 12 (b) 90 (c) 45 (d) 99
  20. 20.Which number is the odd one out: 47, 6, 19, 79? (a) 47 (b) 6 (c) 19 (d) 79
  21. 21.Which number is the odd one out: 73, 80, 13, 23? (a) 73 (b) 80 (c) 13 (d) 23
  22. 22.Which number is the odd one out: 47, 79, 42, 3? (a) 47 (b) 79 (c) 42 (d) 3
  23. 23.Which number is the odd one out: 14, 18, 28, 84? (a) 14 (b) 18 (c) 28 (d) 84
  24. 24.Which number is the odd one out: 17, 13, 41, 50? (a) 17 (b) 13 (c) 41 (d) 50
  25. 25.Which number is the odd one out: 89, 83, 90, 2? (a) 89 (b) 83 (c) 90 (d) 2
  26. 26.Which number is the odd one out: 24, 37, 13, 71? (a) 24 (b) 37 (c) 13 (d) 71
  27. 27.Which number is the odd one out: 59, 85, 20, 83? (a) 59 (b) 85 (c) 20 (d) 83
  28. 28.Which number is the odd one out: 8, 53, 79, 61? (a) 8 (b) 53 (c) 79 (d) 61
  29. 29.Which number is the odd one out: 53, 41, 57, 71? (a) 53 (b) 41 (c) 57 (d) 71
  30. 30.Which number is the odd one out: 77, 60, 84, 35? (a) 77 (b) 60 (c) 84 (d) 35
  31. 31.Which number is the odd one out: 59, 23, 6, 19? (a) 59 (b) 23 (c) 6 (d) 19
  32. 32.Which number is the odd one out: 30, 32, 88, 40? (a) 30 (b) 32 (c) 88 (d) 40
  33. 33.Which number is the odd one out: 19, 18, 67, 73? (a) 19 (b) 18 (c) 67 (d) 73
  34. 34.Which number is the odd one out: 40, 18, 72, 54? (a) 40 (b) 18 (c) 72 (d) 54
  35. 35.Which number is the odd one out: 55, 33, 9, 81? (a) 55 (b) 33 (c) 9 (d) 81
  36. 36.Which number is the odd one out: 69, 67, 53, 73? (a) 69 (b) 67 (c) 53 (d) 73
  37. 37.Which number is the odd one out: 43, 5, 70, 29? (a) 43 (b) 5 (c) 70 (d) 29
  38. 38.Which number is the odd one out: 57, 50, 99, 45? (a) 57 (b) 50 (c) 99 (d) 45
  39. 39.Which number is the odd one out: 68, 37, 92, 52? (a) 68 (b) 37 (c) 92 (d) 52
  40. 40.Which number is the odd one out: 89, 23, 13, 36? (a) 89 (b) 23 (c) 13 (d) 36

Answer key

  1. 50
  2. 61
  3. 60
  4. 21
  5. 84
  6. 14
  7. 74
  8. 4
  9. 45
  10. 67
  11. 72
  12. 80
  13. 18
  14. 25
  15. 92
  16. 26
  17. 35
  18. 47
  19. 12
  20. 6
  21. 80
  22. 42
  23. 18
  24. 50
  25. 90
  26. 24
  27. 20
  28. 8
  29. 57
  30. 60
  31. 6
  32. 30
  33. 18
  34. 40
  35. 55
  36. 69
  37. 70
  38. 50
  39. 37
  40. 36

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