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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 641 · 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: 81, 64, 40, 80? (a) 81 (b) 64 (c) 40 (d) 80
  2. 2.Which number is the odd one out: 41, 30, 95, 53? (a) 41 (b) 30 (c) 95 (d) 53
  3. 3.Which number is the odd one out: 31, 47, 71, 99? (a) 31 (b) 47 (c) 71 (d) 99
  4. 4.Which number is the odd one out: 62, 43, 2, 61? (a) 62 (b) 43 (c) 2 (d) 61
  5. 5.Which number is the odd one out: 32, 8, 95, 80? (a) 32 (b) 8 (c) 95 (d) 80
  6. 6.Which number is the odd one out: 56, 70, 60, 30? (a) 56 (b) 70 (c) 60 (d) 30
  7. 7.Which number is the odd one out: 96, 24, 49, 48? (a) 96 (b) 24 (c) 49 (d) 48
  8. 8.Which number is the odd one out: 45, 3, 19, 5? (a) 45 (b) 3 (c) 19 (d) 5
  9. 9.Which number is the odd one out: 19, 67, 64, 29? (a) 19 (b) 67 (c) 64 (d) 29
  10. 10.Which number is the odd one out: 6, 29, 83, 37? (a) 6 (b) 29 (c) 83 (d) 37
  11. 11.Which number is the odd one out: 2, 19, 97, 34? (a) 2 (b) 19 (c) 97 (d) 34
  12. 12.Which number is the odd one out: 31, 24, 97, 83? (a) 31 (b) 24 (c) 97 (d) 83
  13. 13.Which number is the odd one out: 2, 53, 22, 97? (a) 2 (b) 53 (c) 22 (d) 97
  14. 14.Which number is the odd one out: 97, 6, 3, 67? (a) 97 (b) 6 (c) 3 (d) 67
  15. 15.Which number is the odd one out: 23, 31, 75, 73? (a) 23 (b) 31 (c) 75 (d) 73
  16. 16.Which number is the odd one out: 13, 46, 89, 19? (a) 13 (b) 46 (c) 89 (d) 19
  17. 17.Which number is the odd one out: 35, 5, 97, 79? (a) 35 (b) 5 (c) 97 (d) 79
  18. 18.Which number is the odd one out: 16, 10, 64, 32? (a) 16 (b) 10 (c) 64 (d) 32
  19. 19.Which number is the odd one out: 29, 4, 53, 11? (a) 29 (b) 4 (c) 53 (d) 11
  20. 20.Which number is the odd one out: 43, 41, 71, 14? (a) 43 (b) 41 (c) 71 (d) 14
  21. 21.Which number is the odd one out: 63, 28, 68, 86? (a) 63 (b) 28 (c) 68 (d) 86
  22. 22.Which number is the odd one out: 43, 19, 25, 53? (a) 43 (b) 19 (c) 25 (d) 53
  23. 23.Which number is the odd one out: 14, 10, 99, 70? (a) 14 (b) 10 (c) 99 (d) 70
  24. 24.Which number is the odd one out: 41, 7, 91, 89? (a) 41 (b) 7 (c) 91 (d) 89
  25. 25.Which number is the odd one out: 13, 21, 17, 7? (a) 13 (b) 21 (c) 17 (d) 7
  26. 26.Which number is the odd one out: 8, 86, 64, 16? (a) 8 (b) 86 (c) 64 (d) 16
  27. 27.Which number is the odd one out: 13, 66, 69, 23? (a) 13 (b) 66 (c) 69 (d) 23
  28. 28.Which number is the odd one out: 93, 43, 23, 30? (a) 93 (b) 43 (c) 23 (d) 30
  29. 29.Which number is the odd one out: 49, 20, 56, 40? (a) 49 (b) 20 (c) 56 (d) 40
  30. 30.Which number is the odd one out: 73, 22, 89, 17? (a) 73 (b) 22 (c) 89 (d) 17
  31. 31.Which number is the odd one out: 41, 3, 79, 63? (a) 41 (b) 3 (c) 79 (d) 63
  32. 32.Which number is the odd one out: 37, 3, 83, 66? (a) 37 (b) 3 (c) 83 (d) 66
  33. 33.Which number is the odd one out: 3, 83, 69, 73? (a) 3 (b) 83 (c) 69 (d) 73
  34. 34.Which number is the odd one out: 47, 56, 41, 59? (a) 47 (b) 56 (c) 41 (d) 59
  35. 35.Which number is the odd one out: 6, 4, 64, 16? (a) 6 (b) 4 (c) 64 (d) 16
  36. 36.Which number is the odd one out: 73, 36, 19, 11? (a) 73 (b) 36 (c) 19 (d) 11
  37. 37.Which number is the odd one out: 7, 67, 23, 35? (a) 7 (b) 67 (c) 23 (d) 35
  38. 38.Which number is the odd one out: 75, 51, 40, 57? (a) 75 (b) 51 (c) 40 (d) 57
  39. 39.Which number is the odd one out: 6, 53, 79, 61? (a) 6 (b) 53 (c) 79 (d) 61
  40. 40.Which number is the odd one out: 16, 53, 13, 31? (a) 16 (b) 53 (c) 13 (d) 31

Answer key

  1. 81
  2. 30
  3. 99
  4. 62
  5. 95
  6. 56
  7. 49
  8. 45
  9. 64
  10. 6
  11. 34
  12. 24
  13. 22
  14. 6
  15. 75
  16. 46
  17. 35
  18. 10
  19. 4
  20. 14
  21. 63
  22. 25
  23. 99
  24. 91
  25. 21
  26. 86
  27. 66
  28. 30
  29. 49
  30. 22
  31. 63
  32. 66
  33. 69
  34. 56
  35. 6
  36. 36
  37. 35
  38. 40
  39. 6
  40. 16

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