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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 160 · 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: 17, 59, 2, 42? (a) 17 (b) 59 (c) 2 (d) 42
  2. 2.Which number is the odd one out: 89, 43, 88, 47? (a) 89 (b) 43 (c) 88 (d) 47
  3. 3.Which number is the odd one out: 79, 17, 83, 95? (a) 79 (b) 17 (c) 83 (d) 95
  4. 4.Which number is the odd one out: 2, 31, 50, 11? (a) 2 (b) 31 (c) 50 (d) 11
  5. 5.Which number is the odd one out: 13, 35, 53, 83? (a) 13 (b) 35 (c) 53 (d) 83
  6. 6.Which number is the odd one out: 47, 13, 26, 67? (a) 47 (b) 13 (c) 26 (d) 67
  7. 7.Which number is the odd one out: 98, 73, 41, 23? (a) 98 (b) 73 (c) 41 (d) 23
  8. 8.Which number is the odd one out: 9, 53, 97, 29? (a) 9 (b) 53 (c) 97 (d) 29
  9. 9.Which number is the odd one out: 8, 22, 40, 35? (a) 8 (b) 22 (c) 40 (d) 35
  10. 10.Which number is the odd one out: 12, 2, 48, 96? (a) 12 (b) 2 (c) 48 (d) 96
  11. 11.Which number is the odd one out: 48, 24, 6, 79? (a) 48 (b) 24 (c) 6 (d) 79
  12. 12.Which number is the odd one out: 13, 14, 89, 11? (a) 13 (b) 14 (c) 89 (d) 11
  13. 13.Which number is the odd one out: 85, 7, 15, 75? (a) 85 (b) 7 (c) 15 (d) 75
  14. 14.Which number is the odd one out: 61, 3, 12, 13? (a) 61 (b) 3 (c) 12 (d) 13
  15. 15.Which number is the odd one out: 83, 60, 73, 37? (a) 83 (b) 60 (c) 73 (d) 37
  16. 16.Which number is the odd one out: 23, 80, 40, 34? (a) 23 (b) 80 (c) 40 (d) 34
  17. 17.Which number is the odd one out: 47, 67, 32, 43? (a) 47 (b) 67 (c) 32 (d) 43
  18. 18.Which number is the odd one out: 41, 53, 21, 61? (a) 41 (b) 53 (c) 21 (d) 61
  19. 19.Which number is the odd one out: 69, 59, 57, 33? (a) 69 (b) 59 (c) 57 (d) 33
  20. 20.Which number is the odd one out: 2, 17, 83, 68? (a) 2 (b) 17 (c) 83 (d) 68
  21. 21.Which number is the odd one out: 97, 43, 8, 89? (a) 97 (b) 43 (c) 8 (d) 89
  22. 22.Which number is the odd one out: 17, 2, 59, 66? (a) 17 (b) 2 (c) 59 (d) 66
  23. 23.Which number is the odd one out: 3, 36, 47, 53? (a) 3 (b) 36 (c) 47 (d) 53
  24. 24.Which number is the odd one out: 8, 32, 30, 48? (a) 8 (b) 32 (c) 30 (d) 48
  25. 25.Which number is the odd one out: 97, 28, 11, 17? (a) 97 (b) 28 (c) 11 (d) 17
  26. 26.Which number is the odd one out: 13, 97, 89, 24? (a) 13 (b) 97 (c) 89 (d) 24
  27. 27.Which number is the odd one out: 20, 75, 48, 55? (a) 20 (b) 75 (c) 48 (d) 55
  28. 28.Which number is the odd one out: 61, 19, 22, 11? (a) 61 (b) 19 (c) 22 (d) 11
  29. 29.Which number is the odd one out: 59, 90, 53, 61? (a) 59 (b) 90 (c) 53 (d) 61
  30. 30.Which number is the odd one out: 19, 52, 31, 59? (a) 19 (b) 52 (c) 31 (d) 59
  31. 31.Which number is the odd one out: 42, 23, 29, 19? (a) 42 (b) 23 (c) 29 (d) 19
  32. 32.Which number is the odd one out: 97, 79, 61, 30? (a) 97 (b) 79 (c) 61 (d) 30
  33. 33.Which number is the odd one out: 72, 16, 67, 36? (a) 72 (b) 16 (c) 67 (d) 36
  34. 34.Which number is the odd one out: 29, 78, 84, 28? (a) 29 (b) 78 (c) 84 (d) 28
  35. 35.Which number is the odd one out: 65, 64, 16, 88? (a) 65 (b) 64 (c) 16 (d) 88
  36. 36.Which number is the odd one out: 19, 50, 59, 97? (a) 19 (b) 50 (c) 59 (d) 97
  37. 37.Which number is the odd one out: 29, 71, 11, 20? (a) 29 (b) 71 (c) 11 (d) 20
  38. 38.Which number is the odd one out: 38, 31, 71, 61? (a) 38 (b) 31 (c) 71 (d) 61
  39. 39.Which number is the odd one out: 2, 71, 29, 88? (a) 2 (b) 71 (c) 29 (d) 88
  40. 40.Which number is the odd one out: 14, 7, 2, 79? (a) 14 (b) 7 (c) 2 (d) 79

Answer key

  1. 42
  2. 88
  3. 95
  4. 50
  5. 35
  6. 26
  7. 98
  8. 9
  9. 35
  10. 2
  11. 79
  12. 14
  13. 7
  14. 12
  15. 60
  16. 23
  17. 32
  18. 21
  19. 59
  20. 68
  21. 8
  22. 66
  23. 36
  24. 30
  25. 28
  26. 24
  27. 48
  28. 22
  29. 90
  30. 52
  31. 42
  32. 30
  33. 67
  34. 29
  35. 65
  36. 50
  37. 20
  38. 38
  39. 88
  40. 14

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