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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 380 · 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: 99, 18, 54, 3? (a) 99 (b) 18 (c) 54 (d) 3
  2. 2.Which number is the odd one out: 25, 10, 16, 95? (a) 25 (b) 10 (c) 16 (d) 95
  3. 3.Which number is the odd one out: 47, 13, 31, 10? (a) 47 (b) 13 (c) 31 (d) 10
  4. 4.Which number is the odd one out: 37, 76, 11, 23? (a) 37 (b) 76 (c) 11 (d) 23
  5. 5.Which number is the odd one out: 4, 43, 23, 11? (a) 4 (b) 43 (c) 23 (d) 11
  6. 6.Which number is the odd one out: 48, 11, 78, 96? (a) 48 (b) 11 (c) 78 (d) 96
  7. 7.Which number is the odd one out: 34, 89, 83, 53? (a) 34 (b) 89 (c) 83 (d) 53
  8. 8.Which number is the odd one out: 31, 11, 89, 46? (a) 31 (b) 11 (c) 89 (d) 46
  9. 9.Which number is the odd one out: 59, 34, 77, 7? (a) 59 (b) 34 (c) 77 (d) 7
  10. 10.Which number is the odd one out: 6, 85, 95, 50? (a) 6 (b) 85 (c) 95 (d) 50
  11. 11.Which number is the odd one out: 31, 79, 45, 3? (a) 31 (b) 79 (c) 45 (d) 3
  12. 12.Which number is the odd one out: 93, 29, 19, 23? (a) 93 (b) 29 (c) 19 (d) 23
  13. 13.Which number is the odd one out: 52, 12, 48, 96? (a) 52 (b) 12 (c) 48 (d) 96
  14. 14.Which number is the odd one out: 42, 94, 84, 28? (a) 42 (b) 94 (c) 84 (d) 28
  15. 15.Which number is the odd one out: 17, 45, 29, 19? (a) 17 (b) 45 (c) 29 (d) 19
  16. 16.Which number is the odd one out: 79, 11, 46, 71? (a) 79 (b) 11 (c) 46 (d) 71
  17. 17.Which number is the odd one out: 25, 12, 48, 16? (a) 25 (b) 12 (c) 48 (d) 16
  18. 18.Which number is the odd one out: 61, 43, 16, 71? (a) 61 (b) 43 (c) 16 (d) 71
  19. 19.Which number is the odd one out: 35, 96, 84, 24? (a) 35 (b) 96 (c) 84 (d) 24
  20. 20.Which number is the odd one out: 24, 35, 96, 48? (a) 24 (b) 35 (c) 96 (d) 48
  21. 21.Which number is the odd one out: 3, 27, 83, 31? (a) 3 (b) 27 (c) 83 (d) 31
  22. 22.Which number is the odd one out: 71, 19, 22, 31? (a) 71 (b) 19 (c) 22 (d) 31
  23. 23.Which number is the odd one out: 24, 88, 74, 96? (a) 24 (b) 88 (c) 74 (d) 96
  24. 24.Which number is the odd one out: 10, 76, 15, 75? (a) 10 (b) 76 (c) 15 (d) 75
  25. 25.Which number is the odd one out: 53, 67, 71, 32? (a) 53 (b) 67 (c) 71 (d) 32
  26. 26.Which number is the odd one out: 27, 23, 89, 19? (a) 27 (b) 23 (c) 89 (d) 19
  27. 27.Which number is the odd one out: 57, 18, 54, 6? (a) 57 (b) 18 (c) 54 (d) 6
  28. 28.Which number is the odd one out: 26, 89, 59, 19? (a) 26 (b) 89 (c) 59 (d) 19
  29. 29.Which number is the odd one out: 96, 59, 89, 67? (a) 96 (b) 59 (c) 89 (d) 67
  30. 30.Which number is the odd one out: 21, 48, 77, 14? (a) 21 (b) 48 (c) 77 (d) 14
  31. 31.Which number is the odd one out: 67, 61, 29, 33? (a) 67 (b) 61 (c) 29 (d) 33
  32. 32.Which number is the odd one out: 13, 61, 28, 43? (a) 13 (b) 61 (c) 28 (d) 43
  33. 33.Which number is the odd one out: 70, 89, 5, 61? (a) 70 (b) 89 (c) 5 (d) 61
  34. 34.Which number is the odd one out: 61, 43, 17, 96? (a) 61 (b) 43 (c) 17 (d) 96
  35. 35.Which number is the odd one out: 72, 53, 24, 18? (a) 72 (b) 53 (c) 24 (d) 18
  36. 36.Which number is the odd one out: 53, 8, 32, 88? (a) 53 (b) 8 (c) 32 (d) 88
  37. 37.Which number is the odd one out: 9, 12, 18, 81? (a) 9 (b) 12 (c) 18 (d) 81
  38. 38.Which number is the odd one out: 87, 41, 67, 12? (a) 87 (b) 41 (c) 67 (d) 12
  39. 39.Which number is the odd one out: 30, 18, 49, 90? (a) 30 (b) 18 (c) 49 (d) 90
  40. 40.Which number is the odd one out: 7, 79, 73, 42? (a) 7 (b) 79 (c) 73 (d) 42

Answer key

  1. 3
  2. 16
  3. 10
  4. 76
  5. 4
  6. 11
  7. 34
  8. 46
  9. 34
  10. 6
  11. 45
  12. 93
  13. 52
  14. 94
  15. 45
  16. 46
  17. 25
  18. 16
  19. 35
  20. 35
  21. 27
  22. 22
  23. 74
  24. 76
  25. 32
  26. 27
  27. 57
  28. 26
  29. 96
  30. 48
  31. 33
  32. 28
  33. 70
  34. 96
  35. 53
  36. 53
  37. 12
  38. 12
  39. 49
  40. 42

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