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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 745 · 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: 47, 41, 19, 72? (a) 47 (b) 41 (c) 19 (d) 72
  2. 2.Which number is the odd one out: 74, 52, 3, 44? (a) 74 (b) 52 (c) 3 (d) 44
  3. 3.Which number is the odd one out: 90, 17, 41, 29? (a) 90 (b) 17 (c) 41 (d) 29
  4. 4.Which number is the odd one out: 32, 7, 64, 16? (a) 32 (b) 7 (c) 64 (d) 16
  5. 5.Which number is the odd one out: 59, 14, 61, 37? (a) 59 (b) 14 (c) 61 (d) 37
  6. 6.Which number is the odd one out: 76, 9, 4, 81? (a) 76 (b) 9 (c) 4 (d) 81
  7. 7.Which number is the odd one out: 13, 31, 97, 20? (a) 13 (b) 31 (c) 97 (d) 20
  8. 8.Which number is the odd one out: 97, 48, 19, 31? (a) 97 (b) 48 (c) 19 (d) 31
  9. 9.Which number is the odd one out: 72, 19, 97, 17? (a) 72 (b) 19 (c) 97 (d) 17
  10. 10.Which number is the odd one out: 67, 55, 97, 19? (a) 67 (b) 55 (c) 97 (d) 19
  11. 11.Which number is the odd one out: 17, 55, 47, 5? (a) 17 (b) 55 (c) 47 (d) 5
  12. 12.Which number is the odd one out: 64, 23, 13, 67? (a) 64 (b) 23 (c) 13 (d) 67
  13. 13.Which number is the odd one out: 96, 88, 24, 89? (a) 96 (b) 88 (c) 24 (d) 89
  14. 14.Which number is the odd one out: 61, 14, 37, 11? (a) 61 (b) 14 (c) 37 (d) 11
  15. 15.Which number is the odd one out: 24, 32, 66, 78? (a) 24 (b) 32 (c) 66 (d) 78
  16. 16.Which number is the odd one out: 89, 63, 23, 43? (a) 89 (b) 63 (c) 23 (d) 43
  17. 17.Which number is the odd one out: 78, 54, 18, 64? (a) 78 (b) 54 (c) 18 (d) 64
  18. 18.Which number is the odd one out: 2, 32, 19, 83? (a) 2 (b) 32 (c) 19 (d) 83
  19. 19.Which number is the odd one out: 41, 56, 29, 71? (a) 41 (b) 56 (c) 29 (d) 71
  20. 20.Which number is the odd one out: 79, 31, 73, 34? (a) 79 (b) 31 (c) 73 (d) 34
  21. 21.Which number is the odd one out: 89, 6, 53, 61? (a) 89 (b) 6 (c) 53 (d) 61
  22. 22.Which number is the odd one out: 41, 79, 58, 23? (a) 41 (b) 79 (c) 58 (d) 23
  23. 23.Which number is the odd one out: 53, 96, 17, 11? (a) 53 (b) 96 (c) 17 (d) 11
  24. 24.Which number is the odd one out: 9, 92, 76, 44? (a) 9 (b) 92 (c) 76 (d) 44
  25. 25.Which number is the odd one out: 43, 97, 19, 90? (a) 43 (b) 97 (c) 19 (d) 90
  26. 26.Which number is the odd one out: 37, 71, 67, 25? (a) 37 (b) 71 (c) 67 (d) 25
  27. 27.Which number is the odd one out: 32, 59, 41, 97? (a) 32 (b) 59 (c) 41 (d) 97
  28. 28.Which number is the odd one out: 35, 6, 30, 14? (a) 35 (b) 6 (c) 30 (d) 14
  29. 29.Which number is the odd one out: 8, 80, 59, 40? (a) 8 (b) 80 (c) 59 (d) 40
  30. 30.Which number is the odd one out: 89, 70, 13, 23? (a) 89 (b) 70 (c) 13 (d) 23
  31. 31.Which number is the odd one out: 83, 57, 29, 97? (a) 83 (b) 57 (c) 29 (d) 97
  32. 32.Which number is the odd one out: 25, 81, 9, 5? (a) 25 (b) 81 (c) 9 (d) 5
  33. 33.Which number is the odd one out: 11, 99, 59, 67? (a) 11 (b) 99 (c) 59 (d) 67
  34. 34.Which number is the odd one out: 6, 10, 78, 66? (a) 6 (b) 10 (c) 78 (d) 66
  35. 35.Which number is the odd one out: 59, 65, 37, 89? (a) 59 (b) 65 (c) 37 (d) 89
  36. 36.Which number is the odd one out: 96, 24, 51, 85? (a) 96 (b) 24 (c) 51 (d) 85
  37. 37.Which number is the odd one out: 20, 78, 90, 18? (a) 20 (b) 78 (c) 90 (d) 18
  38. 38.Which number is the odd one out: 8, 81, 9, 4? (a) 8 (b) 81 (c) 9 (d) 4
  39. 39.Which number is the odd one out: 34, 51, 41, 3? (a) 34 (b) 51 (c) 41 (d) 3
  40. 40.Which number is the odd one out: 13, 60, 5, 67? (a) 13 (b) 60 (c) 5 (d) 67

Answer key

  1. 72
  2. 3
  3. 90
  4. 7
  5. 14
  6. 76
  7. 20
  8. 48
  9. 72
  10. 55
  11. 55
  12. 64
  13. 89
  14. 14
  15. 32
  16. 63
  17. 64
  18. 32
  19. 56
  20. 34
  21. 6
  22. 58
  23. 96
  24. 9
  25. 90
  26. 25
  27. 32
  28. 35
  29. 59
  30. 70
  31. 57
  32. 5
  33. 99
  34. 10
  35. 65
  36. 85
  37. 20
  38. 8
  39. 34
  40. 60

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