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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 797 · 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: 96, 48, 78, 73? (a) 96 (b) 48 (c) 78 (d) 73
  2. 2.Which number is the odd one out: 42, 96, 70, 48? (a) 42 (b) 96 (c) 70 (d) 48
  3. 3.Which number is the odd one out: 89, 11, 19, 30? (a) 89 (b) 11 (c) 19 (d) 30
  4. 4.Which number is the odd one out: 48, 16, 54, 64? (a) 48 (b) 16 (c) 54 (d) 64
  5. 5.Which number is the odd one out: 84, 98, 24, 14? (a) 84 (b) 98 (c) 24 (d) 14
  6. 6.Which number is the odd one out: 24, 4, 6, 64? (a) 24 (b) 4 (c) 6 (d) 64
  7. 7.Which number is the odd one out: 41, 29, 81, 83? (a) 41 (b) 29 (c) 81 (d) 83
  8. 8.Which number is the odd one out: 4, 16, 64, 89? (a) 4 (b) 16 (c) 64 (d) 89
  9. 9.Which number is the odd one out: 24, 28, 8, 96? (a) 24 (b) 28 (c) 8 (d) 96
  10. 10.Which number is the odd one out: 79, 51, 31, 97? (a) 79 (b) 51 (c) 31 (d) 97
  11. 11.Which number is the odd one out: 95, 5, 97, 67? (a) 95 (b) 5 (c) 97 (d) 67
  12. 12.Which number is the odd one out: 44, 59, 79, 17? (a) 44 (b) 59 (c) 79 (d) 17
  13. 13.Which number is the odd one out: 95, 19, 43, 83? (a) 95 (b) 19 (c) 43 (d) 83
  14. 14.Which number is the odd one out: 17, 11, 40, 53? (a) 17 (b) 11 (c) 40 (d) 53
  15. 15.Which number is the odd one out: 67, 13, 89, 75? (a) 67 (b) 13 (c) 89 (d) 75
  16. 16.Which number is the odd one out: 97, 73, 25, 17? (a) 97 (b) 73 (c) 25 (d) 17
  17. 17.Which number is the odd one out: 71, 19, 6, 61? (a) 71 (b) 19 (c) 6 (d) 61
  18. 18.Which number is the odd one out: 78, 48, 88, 8? (a) 78 (b) 48 (c) 88 (d) 8
  19. 19.Which number is the odd one out: 67, 64, 29, 17? (a) 67 (b) 64 (c) 29 (d) 17
  20. 20.Which number is the odd one out: 43, 73, 22, 17? (a) 43 (b) 73 (c) 22 (d) 17
  21. 21.Which number is the odd one out: 99, 3, 79, 67? (a) 99 (b) 3 (c) 79 (d) 67
  22. 22.Which number is the odd one out: 83, 27, 36, 17? (a) 83 (b) 27 (c) 36 (d) 17
  23. 23.Which number is the odd one out: 31, 71, 87, 29? (a) 31 (b) 71 (c) 87 (d) 29
  24. 24.Which number is the odd one out: 59, 84, 19, 3? (a) 59 (b) 84 (c) 19 (d) 3
  25. 25.Which number is the odd one out: 98, 45, 50, 14? (a) 98 (b) 45 (c) 50 (d) 14
  26. 26.Which number is the odd one out: 41, 37, 46, 11? (a) 41 (b) 37 (c) 46 (d) 11
  27. 27.Which number is the odd one out: 71, 61, 67, 54? (a) 71 (b) 61 (c) 67 (d) 54
  28. 28.Which number is the odd one out: 4, 32, 67, 16? (a) 4 (b) 32 (c) 67 (d) 16
  29. 29.Which number is the odd one out: 75, 27, 90, 54? (a) 75 (b) 27 (c) 90 (d) 54
  30. 30.Which number is the odd one out: 33, 47, 29, 79? (a) 33 (b) 47 (c) 29 (d) 79
  31. 31.Which number is the odd one out: 23, 29, 27, 90? (a) 23 (b) 29 (c) 27 (d) 90
  32. 32.Which number is the odd one out: 99, 25, 9, 45? (a) 99 (b) 25 (c) 9 (d) 45
  33. 33.Which number is the odd one out: 15, 71, 18, 90? (a) 15 (b) 71 (c) 18 (d) 90
  34. 34.Which number is the odd one out: 64, 67, 89, 31? (a) 64 (b) 67 (c) 89 (d) 31
  35. 35.Which number is the odd one out: 43, 18, 54, 66? (a) 43 (b) 18 (c) 54 (d) 66
  36. 36.Which number is the odd one out: 53, 24, 29, 97? (a) 53 (b) 24 (c) 29 (d) 97
  37. 37.Which number is the odd one out: 19, 11, 91, 17? (a) 19 (b) 11 (c) 91 (d) 17
  38. 38.Which number is the odd one out: 96, 11, 43, 53? (a) 96 (b) 11 (c) 43 (d) 53
  39. 39.Which number is the odd one out: 19, 53, 60, 11? (a) 19 (b) 53 (c) 60 (d) 11
  40. 40.Which number is the odd one out: 11, 29, 80, 97? (a) 11 (b) 29 (c) 80 (d) 97

Answer key

  1. 73
  2. 70
  3. 30
  4. 54
  5. 24
  6. 6
  7. 81
  8. 89
  9. 28
  10. 51
  11. 95
  12. 44
  13. 95
  14. 40
  15. 75
  16. 25
  17. 6
  18. 78
  19. 64
  20. 22
  21. 99
  22. 36
  23. 87
  24. 84
  25. 45
  26. 46
  27. 54
  28. 67
  29. 75
  30. 33
  31. 90
  32. 25
  33. 71
  34. 64
  35. 43
  36. 24
  37. 91
  38. 96
  39. 60
  40. 80

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