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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 97 · 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: 23, 29, 35, 7? (a) 23 (b) 29 (c) 35 (d) 7
  2. 2.Which number is the odd one out: 19, 53, 98, 61? (a) 19 (b) 53 (c) 98 (d) 61
  3. 3.Which number is the odd one out: 97, 40, 23, 59? (a) 97 (b) 40 (c) 23 (d) 59
  4. 4.Which number is the odd one out: 83, 23, 26, 71? (a) 83 (b) 23 (c) 26 (d) 71
  5. 5.Which number is the odd one out: 76, 71, 11, 59? (a) 76 (b) 71 (c) 11 (d) 59
  6. 6.Which number is the odd one out: 68, 95, 60, 12? (a) 68 (b) 95 (c) 60 (d) 12
  7. 7.Which number is the odd one out: 45, 9, 55, 81? (a) 45 (b) 9 (c) 55 (d) 81
  8. 8.Which number is the odd one out: 67, 61, 73, 6? (a) 67 (b) 61 (c) 73 (d) 6
  9. 9.Which number is the odd one out: 78, 83, 29, 43? (a) 78 (b) 83 (c) 29 (d) 43
  10. 10.Which number is the odd one out: 18, 90, 15, 99? (a) 18 (b) 90 (c) 15 (d) 99
  11. 11.Which number is the odd one out: 72, 23, 29, 17? (a) 72 (b) 23 (c) 29 (d) 17
  12. 12.Which number is the odd one out: 32, 29, 73, 47? (a) 32 (b) 29 (c) 73 (d) 47
  13. 13.Which number is the odd one out: 70, 79, 95, 13? (a) 70 (b) 79 (c) 95 (d) 13
  14. 14.Which number is the odd one out: 84, 71, 89, 13? (a) 84 (b) 71 (c) 89 (d) 13
  15. 15.Which number is the odd one out: 29, 28, 73, 13? (a) 29 (b) 28 (c) 73 (d) 13
  16. 16.Which number is the odd one out: 16, 8, 6, 64? (a) 16 (b) 8 (c) 6 (d) 64
  17. 17.Which number is the odd one out: 17, 41, 61, 70? (a) 17 (b) 41 (c) 61 (d) 70
  18. 18.Which number is the odd one out: 41, 70, 17, 97? (a) 41 (b) 70 (c) 17 (d) 97
  19. 19.Which number is the odd one out: 59, 96, 40, 60? (a) 59 (b) 96 (c) 40 (d) 60
  20. 20.Which number is the odd one out: 20, 44, 86, 95? (a) 20 (b) 44 (c) 86 (d) 95
  21. 21.Which number is the odd one out: 79, 23, 63, 7? (a) 79 (b) 23 (c) 63 (d) 7
  22. 22.Which number is the odd one out: 4, 16, 22, 64? (a) 4 (b) 16 (c) 22 (d) 64
  23. 23.Which number is the odd one out: 97, 17, 41, 36? (a) 97 (b) 17 (c) 41 (d) 36
  24. 24.Which number is the odd one out: 19, 5, 29, 50? (a) 19 (b) 5 (c) 29 (d) 50
  25. 25.Which number is the odd one out: 67, 29, 83, 96? (a) 67 (b) 29 (c) 83 (d) 96
  26. 26.Which number is the odd one out: 73, 19, 89, 86? (a) 73 (b) 19 (c) 89 (d) 86
  27. 27.Which number is the odd one out: 60, 20, 2, 30? (a) 60 (b) 20 (c) 2 (d) 30
  28. 28.Which number is the odd one out: 37, 31, 2, 4? (a) 37 (b) 31 (c) 2 (d) 4
  29. 29.Which number is the odd one out: 29, 56, 31, 97? (a) 29 (b) 56 (c) 31 (d) 97
  30. 30.Which number is the odd one out: 72, 31, 17, 53? (a) 72 (b) 31 (c) 17 (d) 53
  31. 31.Which number is the odd one out: 19, 39, 97, 83? (a) 19 (b) 39 (c) 97 (d) 83
  32. 32.Which number is the odd one out: 27, 51, 9, 81? (a) 27 (b) 51 (c) 9 (d) 81
  33. 33.Which number is the odd one out: 13, 98, 8, 56? (a) 13 (b) 98 (c) 8 (d) 56
  34. 34.Which number is the odd one out: 64, 4, 48, 24? (a) 64 (b) 4 (c) 48 (d) 24
  35. 35.Which number is the odd one out: 59, 52, 17, 11? (a) 59 (b) 52 (c) 17 (d) 11
  36. 36.Which number is the odd one out: 53, 15, 3, 17? (a) 53 (b) 15 (c) 3 (d) 17
  37. 37.Which number is the odd one out: 23, 13, 6, 3? (a) 23 (b) 13 (c) 6 (d) 3
  38. 38.Which number is the odd one out: 93, 96, 43, 11? (a) 93 (b) 96 (c) 43 (d) 11
  39. 39.Which number is the odd one out: 71, 98, 41, 43? (a) 71 (b) 98 (c) 41 (d) 43
  40. 40.Which number is the odd one out: 40, 90, 32, 52? (a) 40 (b) 90 (c) 32 (d) 52

Answer key

  1. 35
  2. 98
  3. 40
  4. 26
  5. 76
  6. 95
  7. 55
  8. 6
  9. 78
  10. 15
  11. 72
  12. 32
  13. 70
  14. 84
  15. 28
  16. 6
  17. 70
  18. 70
  19. 59
  20. 95
  21. 63
  22. 22
  23. 36
  24. 50
  25. 96
  26. 86
  27. 2
  28. 4
  29. 56
  30. 72
  31. 39
  32. 51
  33. 13
  34. 4
  35. 52
  36. 15
  37. 6
  38. 96
  39. 98
  40. 90

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