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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 982 · 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: 80, 57, 40, 8? (a) 80 (b) 57 (c) 40 (d) 8
  2. 2.Which number is the odd one out: 5, 78, 47, 85? (a) 5 (b) 78 (c) 47 (d) 85
  3. 3.Which number is the odd one out: 80, 96, 25, 48? (a) 80 (b) 96 (c) 25 (d) 48
  4. 4.Which number is the odd one out: 83, 23, 18, 31? (a) 83 (b) 23 (c) 18 (d) 31
  5. 5.Which number is the odd one out: 69, 3, 92, 13? (a) 69 (b) 3 (c) 92 (d) 13
  6. 6.Which number is the odd one out: 3, 6, 79, 53? (a) 3 (b) 6 (c) 79 (d) 53
  7. 7.Which number is the odd one out: 71, 41, 15, 31? (a) 71 (b) 41 (c) 15 (d) 31
  8. 8.Which number is the odd one out: 31, 41, 2, 10? (a) 31 (b) 41 (c) 2 (d) 10
  9. 9.Which number is the odd one out: 12, 67, 83, 29? (a) 12 (b) 67 (c) 83 (d) 29
  10. 10.Which number is the odd one out: 42, 95, 55, 85? (a) 42 (b) 95 (c) 55 (d) 85
  11. 11.Which number is the odd one out: 65, 27, 18, 90? (a) 65 (b) 27 (c) 18 (d) 90
  12. 12.Which number is the odd one out: 32, 50, 88, 40? (a) 32 (b) 50 (c) 88 (d) 40
  13. 13.Which number is the odd one out: 13, 92, 43, 71? (a) 13 (b) 92 (c) 43 (d) 71
  14. 14.Which number is the odd one out: 71, 41, 22, 29? (a) 71 (b) 41 (c) 22 (d) 29
  15. 15.Which number is the odd one out: 23, 20, 83, 11? (a) 23 (b) 20 (c) 83 (d) 11
  16. 16.Which number is the odd one out: 13, 95, 11, 37? (a) 13 (b) 95 (c) 11 (d) 37
  17. 17.Which number is the odd one out: 48, 96, 8, 28? (a) 48 (b) 96 (c) 8 (d) 28
  18. 18.Which number is the odd one out: 89, 61, 73, 6? (a) 89 (b) 61 (c) 73 (d) 6
  19. 19.Which number is the odd one out: 55, 78, 15, 95? (a) 55 (b) 78 (c) 15 (d) 95
  20. 20.Which number is the odd one out: 16, 61, 64, 88? (a) 16 (b) 61 (c) 64 (d) 88
  21. 21.Which number is the odd one out: 41, 67, 89, 91? (a) 41 (b) 67 (c) 89 (d) 91
  22. 22.Which number is the odd one out: 31, 20, 37, 41? (a) 31 (b) 20 (c) 37 (d) 41
  23. 23.Which number is the odd one out: 73, 29, 5, 45? (a) 73 (b) 29 (c) 5 (d) 45
  24. 24.Which number is the odd one out: 16, 64, 85, 4? (a) 16 (b) 64 (c) 85 (d) 4
  25. 25.Which number is the odd one out: 42, 33, 53, 7? (a) 42 (b) 33 (c) 53 (d) 7
  26. 26.Which number is the odd one out: 20, 38, 40, 80? (a) 20 (b) 38 (c) 40 (d) 80
  27. 27.Which number is the odd one out: 61, 83, 51, 47? (a) 61 (b) 83 (c) 51 (d) 47
  28. 28.Which number is the odd one out: 76, 80, 75, 88? (a) 76 (b) 80 (c) 75 (d) 88
  29. 29.Which number is the odd one out: 70, 23, 10, 98? (a) 70 (b) 23 (c) 10 (d) 98
  30. 30.Which number is the odd one out: 80, 5, 79, 97? (a) 80 (b) 5 (c) 79 (d) 97
  31. 31.Which number is the odd one out: 59, 90, 73, 89? (a) 59 (b) 90 (c) 73 (d) 89
  32. 32.Which number is the odd one out: 40, 20, 48, 24? (a) 40 (b) 20 (c) 48 (d) 24
  33. 33.Which number is the odd one out: 23, 46, 43, 37? (a) 23 (b) 46 (c) 43 (d) 37
  34. 34.Which number is the odd one out: 73, 74, 37, 89? (a) 73 (b) 74 (c) 37 (d) 89
  35. 35.Which number is the odd one out: 17, 39, 19, 30? (a) 17 (b) 39 (c) 19 (d) 30
  36. 36.Which number is the odd one out: 73, 23, 47, 14? (a) 73 (b) 23 (c) 47 (d) 14
  37. 37.Which number is the odd one out: 88, 98, 16, 64? (a) 88 (b) 98 (c) 16 (d) 64
  38. 38.Which number is the odd one out: 53, 71, 26, 31? (a) 53 (b) 71 (c) 26 (d) 31
  39. 39.Which number is the odd one out: 7, 11, 91, 59? (a) 7 (b) 11 (c) 91 (d) 59
  40. 40.Which number is the odd one out: 37, 83, 75, 73? (a) 37 (b) 83 (c) 75 (d) 73

Answer key

  1. 57
  2. 78
  3. 25
  4. 18
  5. 92
  6. 6
  7. 15
  8. 10
  9. 12
  10. 42
  11. 65
  12. 50
  13. 92
  14. 22
  15. 20
  16. 95
  17. 28
  18. 6
  19. 78
  20. 61
  21. 91
  22. 20
  23. 45
  24. 85
  25. 42
  26. 38
  27. 51
  28. 75
  29. 23
  30. 80
  31. 90
  32. 20
  33. 46
  34. 74
  35. 30
  36. 14
  37. 98
  38. 26
  39. 91
  40. 75

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