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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 70 · 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: 51, 47, 13, 83? (a) 51 (b) 47 (c) 13 (d) 83
  2. 2.Which number is the odd one out: 89, 95, 13, 23? (a) 89 (b) 95 (c) 13 (d) 23
  3. 3.Which number is the odd one out: 5, 75, 71, 97? (a) 5 (b) 75 (c) 71 (d) 97
  4. 4.Which number is the odd one out: 98, 96, 88, 12? (a) 98 (b) 96 (c) 88 (d) 12
  5. 5.Which number is the odd one out: 72, 45, 48, 12? (a) 72 (b) 45 (c) 48 (d) 12
  6. 6.Which number is the odd one out: 73, 11, 19, 25? (a) 73 (b) 11 (c) 19 (d) 25
  7. 7.Which number is the odd one out: 42, 13, 51, 79? (a) 42 (b) 13 (c) 51 (d) 79
  8. 8.Which number is the odd one out: 31, 23, 19, 46? (a) 31 (b) 23 (c) 19 (d) 46
  9. 9.Which number is the odd one out: 8, 2, 53, 19? (a) 8 (b) 2 (c) 53 (d) 19
  10. 10.Which number is the odd one out: 13, 63, 19, 17? (a) 13 (b) 63 (c) 19 (d) 17
  11. 11.Which number is the odd one out: 73, 37, 61, 91? (a) 73 (b) 37 (c) 61 (d) 91
  12. 12.Which number is the odd one out: 71, 43, 80, 47? (a) 71 (b) 43 (c) 80 (d) 47
  13. 13.Which number is the odd one out: 41, 31, 44, 23? (a) 41 (b) 31 (c) 44 (d) 23
  14. 14.Which number is the odd one out: 94, 89, 59, 31? (a) 94 (b) 89 (c) 59 (d) 31
  15. 15.Which number is the odd one out: 23, 47, 11, 52? (a) 23 (b) 47 (c) 11 (d) 52
  16. 16.Which number is the odd one out: 37, 43, 89, 95? (a) 37 (b) 43 (c) 89 (d) 95
  17. 17.Which number is the odd one out: 96, 97, 24, 3? (a) 96 (b) 97 (c) 24 (d) 3
  18. 18.Which number is the odd one out: 52, 83, 89, 53? (a) 52 (b) 83 (c) 89 (d) 53
  19. 19.Which number is the odd one out: 54, 95, 72, 48? (a) 54 (b) 95 (c) 72 (d) 48
  20. 20.Which number is the odd one out: 53, 31, 36, 67? (a) 53 (b) 31 (c) 36 (d) 67
  21. 21.Which number is the odd one out: 2, 97, 46, 86? (a) 2 (b) 97 (c) 46 (d) 86
  22. 22.Which number is the odd one out: 96, 24, 80, 65? (a) 96 (b) 24 (c) 80 (d) 65
  23. 23.Which number is the odd one out: 47, 64, 43, 17? (a) 47 (b) 64 (c) 43 (d) 17
  24. 24.Which number is the odd one out: 89, 72, 73, 71? (a) 89 (b) 72 (c) 73 (d) 71
  25. 25.Which number is the odd one out: 77, 4, 91, 98? (a) 77 (b) 4 (c) 91 (d) 98
  26. 26.Which number is the odd one out: 64, 71, 16, 4? (a) 64 (b) 71 (c) 16 (d) 4
  27. 27.Which number is the odd one out: 94, 82, 99, 74? (a) 94 (b) 82 (c) 99 (d) 74
  28. 28.Which number is the odd one out: 41, 71, 37, 8? (a) 41 (b) 71 (c) 37 (d) 8
  29. 29.Which number is the odd one out: 47, 19, 93, 37? (a) 47 (b) 19 (c) 93 (d) 37
  30. 30.Which number is the odd one out: 31, 62, 2, 13? (a) 31 (b) 62 (c) 2 (d) 13
  31. 31.Which number is the odd one out: 64, 9, 63, 16? (a) 64 (b) 9 (c) 63 (d) 16
  32. 32.Which number is the odd one out: 26, 59, 47, 19? (a) 26 (b) 59 (c) 47 (d) 19
  33. 33.Which number is the odd one out: 55, 9, 95, 65? (a) 55 (b) 9 (c) 95 (d) 65
  34. 34.Which number is the odd one out: 92, 23, 73, 31? (a) 92 (b) 23 (c) 73 (d) 31
  35. 35.Which number is the odd one out: 8, 24, 48, 49? (a) 8 (b) 24 (c) 48 (d) 49
  36. 36.Which number is the odd one out: 31, 26, 13, 17? (a) 31 (b) 26 (c) 13 (d) 17
  37. 37.Which number is the odd one out: 3, 89, 19, 45? (a) 3 (b) 89 (c) 19 (d) 45
  38. 38.Which number is the odd one out: 48, 99, 36, 9? (a) 48 (b) 99 (c) 36 (d) 9
  39. 39.Which number is the odd one out: 10, 43, 47, 73? (a) 10 (b) 43 (c) 47 (d) 73
  40. 40.Which number is the odd one out: 97, 37, 83, 81? (a) 97 (b) 37 (c) 83 (d) 81

Answer key

  1. 51
  2. 95
  3. 75
  4. 98
  5. 45
  6. 25
  7. 42
  8. 46
  9. 8
  10. 63
  11. 91
  12. 80
  13. 44
  14. 94
  15. 52
  16. 95
  17. 97
  18. 52
  19. 95
  20. 36
  21. 97
  22. 65
  23. 64
  24. 72
  25. 4
  26. 71
  27. 99
  28. 8
  29. 93
  30. 62
  31. 63
  32. 26
  33. 9
  34. 92
  35. 49
  36. 26
  37. 45
  38. 48
  39. 10
  40. 81

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