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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 73 · 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: 19, 7, 70, 97? (a) 19 (b) 7 (c) 70 (d) 97
  2. 2.Which number is the odd one out: 83, 60, 73, 61? (a) 83 (b) 60 (c) 73 (d) 61
  3. 3.Which number is the odd one out: 23, 37, 47, 77? (a) 23 (b) 37 (c) 47 (d) 77
  4. 4.Which number is the odd one out: 69, 24, 29, 47? (a) 69 (b) 24 (c) 29 (d) 47
  5. 5.Which number is the odd one out: 26, 59, 23, 47? (a) 26 (b) 59 (c) 23 (d) 47
  6. 6.Which number is the odd one out: 23, 26, 2, 74? (a) 23 (b) 26 (c) 2 (d) 74
  7. 7.Which number is the odd one out: 41, 19, 37, 8? (a) 41 (b) 19 (c) 37 (d) 8
  8. 8.Which number is the odd one out: 54, 72, 96, 58? (a) 54 (b) 72 (c) 96 (d) 58
  9. 9.Which number is the odd one out: 16, 15, 4, 64? (a) 16 (b) 15 (c) 4 (d) 64
  10. 10.Which number is the odd one out: 29, 19, 79, 34? (a) 29 (b) 19 (c) 79 (d) 34
  11. 11.Which number is the odd one out: 96, 66, 24, 21? (a) 96 (b) 66 (c) 24 (d) 21
  12. 12.Which number is the odd one out: 34, 83, 79, 97? (a) 34 (b) 83 (c) 79 (d) 97
  13. 13.Which number is the odd one out: 47, 21, 41, 13? (a) 47 (b) 21 (c) 41 (d) 13
  14. 14.Which number is the odd one out: 59, 23, 5, 90? (a) 59 (b) 23 (c) 5 (d) 90
  15. 15.Which number is the odd one out: 23, 83, 3, 63? (a) 23 (b) 83 (c) 3 (d) 63
  16. 16.Which number is the odd one out: 47, 58, 62, 2? (a) 47 (b) 58 (c) 62 (d) 2
  17. 17.Which number is the odd one out: 6, 88, 12, 8? (a) 6 (b) 88 (c) 12 (d) 8
  18. 18.Which number is the odd one out: 46, 31, 58, 26? (a) 46 (b) 31 (c) 58 (d) 26
  19. 19.Which number is the odd one out: 25, 11, 61, 37? (a) 25 (b) 11 (c) 61 (d) 37
  20. 20.Which number is the odd one out: 17, 2, 89, 44? (a) 17 (b) 2 (c) 89 (d) 44
  21. 21.Which number is the odd one out: 13, 66, 24, 96? (a) 13 (b) 66 (c) 24 (d) 96
  22. 22.Which number is the odd one out: 10, 80, 40, 78? (a) 10 (b) 80 (c) 40 (d) 78
  23. 23.Which number is the odd one out: 95, 18, 54, 30? (a) 95 (b) 18 (c) 54 (d) 30
  24. 24.Which number is the odd one out: 29, 90, 31, 13? (a) 29 (b) 90 (c) 31 (d) 13
  25. 25.Which number is the odd one out: 79, 67, 28, 97? (a) 79 (b) 67 (c) 28 (d) 97
  26. 26.Which number is the odd one out: 66, 17, 11, 73? (a) 66 (b) 17 (c) 11 (d) 73
  27. 27.Which number is the odd one out: 2, 84, 41, 17? (a) 2 (b) 84 (c) 41 (d) 17
  28. 28.Which number is the odd one out: 17, 67, 13, 94? (a) 17 (b) 67 (c) 13 (d) 94
  29. 29.Which number is the odd one out: 71, 25, 67, 13? (a) 71 (b) 25 (c) 67 (d) 13
  30. 30.Which number is the odd one out: 93, 41, 43, 11? (a) 93 (b) 41 (c) 43 (d) 11
  31. 31.Which number is the odd one out: 84, 3, 17, 19? (a) 84 (b) 3 (c) 17 (d) 19
  32. 32.Which number is the odd one out: 60, 43, 31, 5? (a) 60 (b) 43 (c) 31 (d) 5
  33. 33.Which number is the odd one out: 13, 10, 41, 71? (a) 13 (b) 10 (c) 41 (d) 71
  34. 34.Which number is the odd one out: 48, 11, 59, 3? (a) 48 (b) 11 (c) 59 (d) 3
  35. 35.Which number is the odd one out: 59, 61, 58, 17? (a) 59 (b) 61 (c) 58 (d) 17
  36. 36.Which number is the odd one out: 80, 81, 64, 9? (a) 80 (b) 81 (c) 64 (d) 9
  37. 37.Which number is the odd one out: 18, 11, 73, 97? (a) 18 (b) 11 (c) 73 (d) 97
  38. 38.Which number is the odd one out: 83, 92, 67, 37? (a) 83 (b) 92 (c) 67 (d) 37
  39. 39.Which number is the odd one out: 17, 54, 83, 43? (a) 17 (b) 54 (c) 83 (d) 43
  40. 40.Which number is the odd one out: 23, 38, 53, 41? (a) 23 (b) 38 (c) 53 (d) 41

Answer key

  1. 70
  2. 60
  3. 77
  4. 24
  5. 26
  6. 23
  7. 8
  8. 58
  9. 15
  10. 34
  11. 21
  12. 34
  13. 21
  14. 90
  15. 63
  16. 47
  17. 6
  18. 31
  19. 25
  20. 44
  21. 13
  22. 78
  23. 95
  24. 90
  25. 28
  26. 66
  27. 84
  28. 94
  29. 25
  30. 93
  31. 84
  32. 60
  33. 10
  34. 48
  35. 58
  36. 80
  37. 18
  38. 92
  39. 54
  40. 38

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