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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 397 · 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: 73, 43, 90, 41? (a) 73 (b) 43 (c) 90 (d) 41
  2. 2.Which number is the odd one out: 3, 79, 99, 13? (a) 3 (b) 79 (c) 99 (d) 13
  3. 3.Which number is the odd one out: 80, 8, 24, 30? (a) 80 (b) 8 (c) 24 (d) 30
  4. 4.Which number is the odd one out: 55, 11, 79, 60? (a) 55 (b) 11 (c) 79 (d) 60
  5. 5.Which number is the odd one out: 49, 13, 53, 67? (a) 49 (b) 13 (c) 53 (d) 67
  6. 6.Which number is the odd one out: 19, 3, 47, 54? (a) 19 (b) 3 (c) 47 (d) 54
  7. 7.Which number is the odd one out: 37, 31, 89, 30? (a) 37 (b) 31 (c) 89 (d) 30
  8. 8.Which number is the odd one out: 26, 17, 97, 29? (a) 26 (b) 17 (c) 97 (d) 29
  9. 9.Which number is the odd one out: 13, 97, 12, 11? (a) 13 (b) 97 (c) 12 (d) 11
  10. 10.Which number is the odd one out: 8, 48, 58, 24? (a) 8 (b) 48 (c) 58 (d) 24
  11. 11.Which number is the odd one out: 53, 71, 66, 61? (a) 53 (b) 71 (c) 66 (d) 61
  12. 12.Which number is the odd one out: 4, 53, 2, 43? (a) 4 (b) 53 (c) 2 (d) 43
  13. 13.Which number is the odd one out: 36, 9, 47, 89? (a) 36 (b) 9 (c) 47 (d) 89
  14. 14.Which number is the odd one out: 91, 60, 21, 28? (a) 91 (b) 60 (c) 21 (d) 28
  15. 15.Which number is the odd one out: 43, 8, 11, 17? (a) 43 (b) 8 (c) 11 (d) 17
  16. 16.Which number is the odd one out: 68, 96, 88, 48? (a) 68 (b) 96 (c) 88 (d) 48
  17. 17.Which number is the odd one out: 89, 38, 59, 31? (a) 89 (b) 38 (c) 59 (d) 31
  18. 18.Which number is the odd one out: 96, 55, 50, 75? (a) 96 (b) 55 (c) 50 (d) 75
  19. 19.Which number is the odd one out: 61, 97, 36, 89? (a) 61 (b) 97 (c) 36 (d) 89
  20. 20.Which number is the odd one out: 63, 71, 79, 53? (a) 63 (b) 71 (c) 79 (d) 53
  21. 21.Which number is the odd one out: 81, 84, 27, 9? (a) 81 (b) 84 (c) 27 (d) 9
  22. 22.Which number is the odd one out: 30, 81, 9, 18? (a) 30 (b) 81 (c) 9 (d) 18
  23. 23.Which number is the odd one out: 4, 16, 64, 47? (a) 4 (b) 16 (c) 64 (d) 47
  24. 24.Which number is the odd one out: 29, 61, 47, 24? (a) 29 (b) 61 (c) 47 (d) 24
  25. 25.Which number is the odd one out: 66, 71, 11, 47? (a) 66 (b) 71 (c) 11 (d) 47
  26. 26.Which number is the odd one out: 61, 43, 33, 42? (a) 61 (b) 43 (c) 33 (d) 42
  27. 27.Which number is the odd one out: 51, 17, 96, 48? (a) 51 (b) 17 (c) 96 (d) 48
  28. 28.Which number is the odd one out: 37, 41, 22, 71? (a) 37 (b) 41 (c) 22 (d) 71
  29. 29.Which number is the odd one out: 55, 42, 70, 75? (a) 55 (b) 42 (c) 70 (d) 75
  30. 30.Which number is the odd one out: 67, 4, 37, 59? (a) 67 (b) 4 (c) 37 (d) 59
  31. 31.Which number is the odd one out: 33, 13, 97, 61? (a) 33 (b) 13 (c) 97 (d) 61
  32. 32.Which number is the odd one out: 38, 91, 7, 83? (a) 38 (b) 91 (c) 7 (d) 83
  33. 33.Which number is the odd one out: 23, 67, 3, 36? (a) 23 (b) 67 (c) 3 (d) 36
  34. 34.Which number is the odd one out: 8, 37, 41, 89? (a) 8 (b) 37 (c) 41 (d) 89
  35. 35.Which number is the odd one out: 67, 97, 92, 79? (a) 67 (b) 97 (c) 92 (d) 79
  36. 36.Which number is the odd one out: 73, 59, 25, 67? (a) 73 (b) 59 (c) 25 (d) 67
  37. 37.Which number is the odd one out: 99, 41, 17, 19? (a) 99 (b) 41 (c) 17 (d) 19
  38. 38.Which number is the odd one out: 29, 79, 2, 4? (a) 29 (b) 79 (c) 2 (d) 4
  39. 39.Which number is the odd one out: 47, 53, 19, 72? (a) 47 (b) 53 (c) 19 (d) 72
  40. 40.Which number is the odd one out: 65, 73, 29, 59? (a) 65 (b) 73 (c) 29 (d) 59

Answer key

  1. 90
  2. 99
  3. 30
  4. 60
  5. 49
  6. 54
  7. 30
  8. 26
  9. 12
  10. 58
  11. 66
  12. 4
  13. 36
  14. 60
  15. 8
  16. 68
  17. 38
  18. 96
  19. 36
  20. 63
  21. 84
  22. 30
  23. 47
  24. 24
  25. 66
  26. 42
  27. 17
  28. 22
  29. 42
  30. 4
  31. 33
  32. 38
  33. 36
  34. 8
  35. 92
  36. 25
  37. 99
  38. 4
  39. 72
  40. 65

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