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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 396 · 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: 72, 8, 80, 90? (a) 72 (b) 8 (c) 80 (d) 90
  2. 2.Which number is the odd one out: 53, 56, 19, 37? (a) 53 (b) 56 (c) 19 (d) 37
  3. 3.Which number is the odd one out: 71, 13, 17, 78? (a) 71 (b) 13 (c) 17 (d) 78
  4. 4.Which number is the odd one out: 19, 49, 7, 43? (a) 19 (b) 49 (c) 7 (d) 43
  5. 5.Which number is the odd one out: 79, 92, 71, 89? (a) 79 (b) 92 (c) 71 (d) 89
  6. 6.Which number is the odd one out: 62, 31, 11, 71? (a) 62 (b) 31 (c) 11 (d) 71
  7. 7.Which number is the odd one out: 86, 46, 94, 81? (a) 86 (b) 46 (c) 94 (d) 81
  8. 8.Which number is the odd one out: 67, 41, 61, 78? (a) 67 (b) 41 (c) 61 (d) 78
  9. 9.Which number is the odd one out: 12, 9, 72, 48? (a) 12 (b) 9 (c) 72 (d) 48
  10. 10.Which number is the odd one out: 59, 2, 41, 70? (a) 59 (b) 2 (c) 41 (d) 70
  11. 11.Which number is the odd one out: 39, 3, 93, 5? (a) 39 (b) 3 (c) 93 (d) 5
  12. 12.Which number is the odd one out: 37, 43, 31, 4? (a) 37 (b) 43 (c) 31 (d) 4
  13. 13.Which number is the odd one out: 64, 15, 25, 16? (a) 64 (b) 15 (c) 25 (d) 16
  14. 14.Which number is the odd one out: 18, 66, 41, 54? (a) 18 (b) 66 (c) 41 (d) 54
  15. 15.Which number is the odd one out: 3, 66, 17, 23? (a) 3 (b) 66 (c) 17 (d) 23
  16. 16.Which number is the odd one out: 83, 12, 23, 89? (a) 83 (b) 12 (c) 23 (d) 89
  17. 17.Which number is the odd one out: 64, 19, 11, 97? (a) 64 (b) 19 (c) 11 (d) 97
  18. 18.Which number is the odd one out: 36, 19, 89, 67? (a) 36 (b) 19 (c) 89 (d) 67
  19. 19.Which number is the odd one out: 67, 53, 27, 71? (a) 67 (b) 53 (c) 27 (d) 71
  20. 20.Which number is the odd one out: 16, 2, 64, 4? (a) 16 (b) 2 (c) 64 (d) 4
  21. 21.Which number is the odd one out: 97, 17, 30, 79? (a) 97 (b) 17 (c) 30 (d) 79
  22. 22.Which number is the odd one out: 29, 41, 6, 61? (a) 29 (b) 41 (c) 6 (d) 61
  23. 23.Which number is the odd one out: 37, 59, 97, 66? (a) 37 (b) 59 (c) 97 (d) 66
  24. 24.Which number is the odd one out: 53, 79, 23, 8? (a) 53 (b) 79 (c) 23 (d) 8
  25. 25.Which number is the odd one out: 83, 58, 46, 26? (a) 83 (b) 58 (c) 46 (d) 26
  26. 26.Which number is the odd one out: 96, 43, 33, 41? (a) 96 (b) 43 (c) 33 (d) 41
  27. 27.Which number is the odd one out: 80, 24, 60, 14? (a) 80 (b) 24 (c) 60 (d) 14
  28. 28.Which number is the odd one out: 52, 29, 31, 83? (a) 52 (b) 29 (c) 31 (d) 83
  29. 29.Which number is the odd one out: 28, 2, 19, 31? (a) 28 (b) 2 (c) 19 (d) 31
  30. 30.Which number is the odd one out: 54, 47, 17, 31? (a) 54 (b) 47 (c) 17 (d) 31
  31. 31.Which number is the odd one out: 48, 50, 32, 96? (a) 48 (b) 50 (c) 32 (d) 96
  32. 32.Which number is the odd one out: 98, 24, 6, 96? (a) 98 (b) 24 (c) 6 (d) 96
  33. 33.Which number is the odd one out: 96, 64, 48, 25? (a) 96 (b) 64 (c) 48 (d) 25
  34. 34.Which number is the odd one out: 68, 2, 79, 83? (a) 68 (b) 2 (c) 79 (d) 83
  35. 35.Which number is the odd one out: 11, 89, 24, 37? (a) 11 (b) 89 (c) 24 (d) 37
  36. 36.Which number is the odd one out: 71, 37, 15, 17? (a) 71 (b) 37 (c) 15 (d) 17
  37. 37.Which number is the odd one out: 53, 73, 70, 55? (a) 53 (b) 73 (c) 70 (d) 55
  38. 38.Which number is the odd one out: 11, 97, 96, 61? (a) 11 (b) 97 (c) 96 (d) 61
  39. 39.Which number is the odd one out: 77, 14, 61, 37? (a) 77 (b) 14 (c) 61 (d) 37
  40. 40.Which number is the odd one out: 91, 6, 24, 96? (a) 91 (b) 6 (c) 24 (d) 96

Answer key

  1. 90
  2. 56
  3. 78
  4. 49
  5. 92
  6. 62
  7. 81
  8. 78
  9. 9
  10. 70
  11. 5
  12. 4
  13. 15
  14. 41
  15. 66
  16. 12
  17. 64
  18. 36
  19. 27
  20. 2
  21. 30
  22. 6
  23. 66
  24. 8
  25. 83
  26. 96
  27. 14
  28. 52
  29. 28
  30. 54
  31. 50
  32. 98
  33. 25
  34. 68
  35. 24
  36. 15
  37. 70
  38. 96
  39. 14
  40. 91

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