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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 999 · 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: 92, 55, 32, 40? (a) 92 (b) 55 (c) 32 (d) 40
  2. 2.Which number is the odd one out: 87, 79, 3, 56? (a) 87 (b) 79 (c) 3 (d) 56
  3. 3.Which number is the odd one out: 31, 47, 11, 72? (a) 31 (b) 47 (c) 11 (d) 72
  4. 4.Which number is the odd one out: 98, 90, 21, 91? (a) 98 (b) 90 (c) 21 (d) 91
  5. 5.Which number is the odd one out: 75, 50, 46, 62? (a) 75 (b) 50 (c) 46 (d) 62
  6. 6.Which number is the odd one out: 37, 84, 13, 83? (a) 37 (b) 84 (c) 13 (d) 83
  7. 7.Which number is the odd one out: 39, 73, 13, 43? (a) 39 (b) 73 (c) 13 (d) 43
  8. 8.Which number is the odd one out: 37, 84, 11, 73? (a) 37 (b) 84 (c) 11 (d) 73
  9. 9.Which number is the odd one out: 17, 32, 83, 2? (a) 17 (b) 32 (c) 83 (d) 2
  10. 10.Which number is the odd one out: 35, 48, 96, 88? (a) 35 (b) 48 (c) 96 (d) 88
  11. 11.Which number is the odd one out: 17, 57, 33, 93? (a) 17 (b) 57 (c) 33 (d) 93
  12. 12.Which number is the odd one out: 3, 36, 61, 11? (a) 3 (b) 36 (c) 61 (d) 11
  13. 13.Which number is the odd one out: 29, 12, 31, 13? (a) 29 (b) 12 (c) 31 (d) 13
  14. 14.Which number is the odd one out: 71, 17, 4, 23? (a) 71 (b) 17 (c) 4 (d) 23
  15. 15.Which number is the odd one out: 13, 66, 41, 73? (a) 13 (b) 66 (c) 41 (d) 73
  16. 16.Which number is the odd one out: 6, 17, 7, 77? (a) 6 (b) 17 (c) 7 (d) 77
  17. 17.Which number is the odd one out: 47, 25, 73, 79? (a) 47 (b) 25 (c) 73 (d) 79
  18. 18.Which number is the odd one out: 70, 14, 51, 35? (a) 70 (b) 14 (c) 51 (d) 35
  19. 19.Which number is the odd one out: 17, 47, 34, 73? (a) 17 (b) 47 (c) 34 (d) 73
  20. 20.Which number is the odd one out: 59, 3, 87, 17? (a) 59 (b) 3 (c) 87 (d) 17
  21. 21.Which number is the odd one out: 89, 3, 93, 73? (a) 89 (b) 3 (c) 93 (d) 73
  22. 22.Which number is the odd one out: 11, 84, 29, 23? (a) 11 (b) 84 (c) 29 (d) 23
  23. 23.Which number is the odd one out: 48, 88, 24, 5? (a) 48 (b) 88 (c) 24 (d) 5
  24. 24.Which number is the odd one out: 65, 94, 30, 6? (a) 65 (b) 94 (c) 30 (d) 6
  25. 25.Which number is the odd one out: 42, 45, 90, 27? (a) 42 (b) 45 (c) 90 (d) 27
  26. 26.Which number is the odd one out: 65, 80, 32, 95? (a) 65 (b) 80 (c) 32 (d) 95
  27. 27.Which number is the odd one out: 2, 83, 11, 13? (a) 2 (b) 83 (c) 11 (d) 13
  28. 28.Which number is the odd one out: 41, 52, 73, 29? (a) 41 (b) 52 (c) 73 (d) 29
  29. 29.Which number is the odd one out: 79, 89, 56, 73? (a) 79 (b) 89 (c) 56 (d) 73
  30. 30.Which number is the odd one out: 61, 23, 96, 71? (a) 61 (b) 23 (c) 96 (d) 71
  31. 31.Which number is the odd one out: 89, 77, 71, 31? (a) 89 (b) 77 (c) 71 (d) 31
  32. 32.Which number is the odd one out: 31, 89, 45, 13? (a) 31 (b) 89 (c) 45 (d) 13
  33. 33.Which number is the odd one out: 71, 83, 19, 10? (a) 71 (b) 83 (c) 19 (d) 10
  34. 34.Which number is the odd one out: 84, 17, 43, 19? (a) 84 (b) 17 (c) 43 (d) 19
  35. 35.Which number is the odd one out: 55, 95, 19, 65? (a) 55 (b) 95 (c) 19 (d) 65
  36. 36.Which number is the odd one out: 31, 37, 11, 64? (a) 31 (b) 37 (c) 11 (d) 64
  37. 37.Which number is the odd one out: 31, 41, 11, 92? (a) 31 (b) 41 (c) 11 (d) 92
  38. 38.Which number is the odd one out: 46, 48, 96, 88? (a) 46 (b) 48 (c) 96 (d) 88
  39. 39.Which number is the odd one out: 62, 23, 73, 41? (a) 62 (b) 23 (c) 73 (d) 41
  40. 40.Which number is the odd one out: 58, 2, 19, 53? (a) 58 (b) 2 (c) 19 (d) 53

Answer key

  1. 55
  2. 56
  3. 72
  4. 90
  5. 75
  6. 84
  7. 39
  8. 84
  9. 32
  10. 35
  11. 17
  12. 36
  13. 12
  14. 4
  15. 66
  16. 6
  17. 25
  18. 51
  19. 34
  20. 87
  21. 93
  22. 84
  23. 5
  24. 65
  25. 42
  26. 32
  27. 2
  28. 52
  29. 56
  30. 96
  31. 77
  32. 45
  33. 10
  34. 84
  35. 19
  36. 64
  37. 92
  38. 46
  39. 62
  40. 58

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