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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 518 · 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: 15, 79, 31, 11? (a) 15 (b) 79 (c) 31 (d) 11
  2. 2.Which number is the odd one out: 65, 17, 11, 47? (a) 65 (b) 17 (c) 11 (d) 47
  3. 3.Which number is the odd one out: 29, 43, 13, 6? (a) 29 (b) 43 (c) 13 (d) 6
  4. 4.Which number is the odd one out: 37, 91, 89, 13? (a) 37 (b) 91 (c) 89 (d) 13
  5. 5.Which number is the odd one out: 29, 18, 41, 71? (a) 29 (b) 18 (c) 41 (d) 71
  6. 6.Which number is the odd one out: 4, 64, 16, 86? (a) 4 (b) 64 (c) 16 (d) 86
  7. 7.Which number is the odd one out: 13, 31, 71, 42? (a) 13 (b) 31 (c) 71 (d) 42
  8. 8.Which number is the odd one out: 79, 29, 60, 89? (a) 79 (b) 29 (c) 60 (d) 89
  9. 9.Which number is the odd one out: 47, 43, 68, 13? (a) 47 (b) 43 (c) 68 (d) 13
  10. 10.Which number is the odd one out: 43, 75, 37, 13? (a) 43 (b) 75 (c) 37 (d) 13
  11. 11.Which number is the odd one out: 61, 69, 47, 13? (a) 61 (b) 69 (c) 47 (d) 13
  12. 12.Which number is the odd one out: 79, 83, 17, 64? (a) 79 (b) 83 (c) 17 (d) 64
  13. 13.Which number is the odd one out: 47, 89, 30, 79? (a) 47 (b) 89 (c) 30 (d) 79
  14. 14.Which number is the odd one out: 23, 22, 19, 2? (a) 23 (b) 22 (c) 19 (d) 2
  15. 15.Which number is the odd one out: 67, 61, 11, 55? (a) 67 (b) 61 (c) 11 (d) 55
  16. 16.Which number is the odd one out: 97, 79, 95, 53? (a) 97 (b) 79 (c) 95 (d) 53
  17. 17.Which number is the odd one out: 79, 67, 41, 24? (a) 79 (b) 67 (c) 41 (d) 24
  18. 18.Which number is the odd one out: 69, 72, 19, 71? (a) 69 (b) 72 (c) 19 (d) 71
  19. 19.Which number is the odd one out: 42, 30, 35, 55? (a) 42 (b) 30 (c) 35 (d) 55
  20. 20.Which number is the odd one out: 31, 13, 57, 71? (a) 31 (b) 13 (c) 57 (d) 71
  21. 21.Which number is the odd one out: 95, 40, 19, 80? (a) 95 (b) 40 (c) 19 (d) 80
  22. 22.Which number is the odd one out: 58, 89, 47, 41? (a) 58 (b) 89 (c) 47 (d) 41
  23. 23.Which number is the odd one out: 15, 96, 60, 24? (a) 15 (b) 96 (c) 60 (d) 24
  24. 24.Which number is the odd one out: 65, 46, 58, 38? (a) 65 (b) 46 (c) 58 (d) 38
  25. 25.Which number is the odd one out: 3, 37, 87, 64? (a) 3 (b) 37 (c) 87 (d) 64
  26. 26.Which number is the odd one out: 48, 86, 88, 24? (a) 48 (b) 86 (c) 88 (d) 24
  27. 27.Which number is the odd one out: 72, 96, 35, 54? (a) 72 (b) 96 (c) 35 (d) 54
  28. 28.Which number is the odd one out: 6, 37, 31, 83? (a) 6 (b) 37 (c) 31 (d) 83
  29. 29.Which number is the odd one out: 48, 96, 54, 24? (a) 48 (b) 96 (c) 54 (d) 24
  30. 30.Which number is the odd one out: 11, 76, 24, 48? (a) 11 (b) 76 (c) 24 (d) 48
  31. 31.Which number is the odd one out: 91, 37, 43, 97? (a) 91 (b) 37 (c) 43 (d) 97
  32. 32.Which number is the odd one out: 31, 43, 2, 68? (a) 31 (b) 43 (c) 2 (d) 68
  33. 33.Which number is the odd one out: 90, 17, 47, 99? (a) 90 (b) 17 (c) 47 (d) 99
  34. 34.Which number is the odd one out: 12, 71, 47, 59? (a) 12 (b) 71 (c) 47 (d) 59
  35. 35.Which number is the odd one out: 37, 53, 59, 34? (a) 37 (b) 53 (c) 59 (d) 34
  36. 36.Which number is the odd one out: 39, 75, 64, 95? (a) 39 (b) 75 (c) 64 (d) 95
  37. 37.Which number is the odd one out: 4, 17, 64, 16? (a) 4 (b) 17 (c) 64 (d) 16
  38. 38.Which number is the odd one out: 37, 19, 3, 93? (a) 37 (b) 19 (c) 3 (d) 93
  39. 39.Which number is the odd one out: 50, 41, 83, 13? (a) 50 (b) 41 (c) 83 (d) 13
  40. 40.Which number is the odd one out: 25, 24, 64, 96? (a) 25 (b) 24 (c) 64 (d) 96

Answer key

  1. 15
  2. 65
  3. 6
  4. 91
  5. 18
  6. 86
  7. 42
  8. 60
  9. 68
  10. 75
  11. 69
  12. 64
  13. 30
  14. 22
  15. 55
  16. 95
  17. 24
  18. 72
  19. 42
  20. 57
  21. 19
  22. 58
  23. 15
  24. 65
  25. 64
  26. 86
  27. 35
  28. 6
  29. 54
  30. 11
  31. 91
  32. 68
  33. 90
  34. 12
  35. 34
  36. 64
  37. 17
  38. 93
  39. 50
  40. 25

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