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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 963 · 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: 9, 29, 23, 79? (a) 9 (b) 29 (c) 23 (d) 79
  2. 2.Which number is the odd one out: 54, 17, 33, 19? (a) 54 (b) 17 (c) 33 (d) 19
  3. 3.Which number is the odd one out: 5, 71, 70, 41? (a) 5 (b) 71 (c) 70 (d) 41
  4. 4.Which number is the odd one out: 63, 3, 13, 41? (a) 63 (b) 3 (c) 13 (d) 41
  5. 5.Which number is the odd one out: 37, 35, 43, 5? (a) 37 (b) 35 (c) 43 (d) 5
  6. 6.Which number is the odd one out: 61, 13, 19, 60? (a) 61 (b) 13 (c) 19 (d) 60
  7. 7.Which number is the odd one out: 97, 64, 37, 53? (a) 97 (b) 64 (c) 37 (d) 53
  8. 8.Which number is the odd one out: 16, 79, 43, 31? (a) 16 (b) 79 (c) 43 (d) 31
  9. 9.Which number is the odd one out: 71, 29, 9, 17? (a) 71 (b) 29 (c) 9 (d) 17
  10. 10.Which number is the odd one out: 75, 73, 13, 19? (a) 75 (b) 73 (c) 13 (d) 19
  11. 11.Which number is the odd one out: 8, 52, 32, 63? (a) 8 (b) 52 (c) 32 (d) 63
  12. 12.Which number is the odd one out: 24, 81, 9, 27? (a) 24 (b) 81 (c) 9 (d) 27
  13. 13.Which number is the odd one out: 93, 13, 24, 67? (a) 93 (b) 13 (c) 24 (d) 67
  14. 14.Which number is the odd one out: 53, 96, 11, 31? (a) 53 (b) 96 (c) 11 (d) 31
  15. 15.Which number is the odd one out: 27, 73, 54, 18? (a) 27 (b) 73 (c) 54 (d) 18
  16. 16.Which number is the odd one out: 17, 19, 52, 71? (a) 17 (b) 19 (c) 52 (d) 71
  17. 17.Which number is the odd one out: 24, 2, 48, 96? (a) 24 (b) 2 (c) 48 (d) 96
  18. 18.Which number is the odd one out: 71, 13, 88, 11? (a) 71 (b) 13 (c) 88 (d) 11
  19. 19.Which number is the odd one out: 15, 17, 79, 67? (a) 15 (b) 17 (c) 79 (d) 67
  20. 20.Which number is the odd one out: 81, 9, 30, 90? (a) 81 (b) 9 (c) 30 (d) 90
  21. 21.Which number is the odd one out: 59, 73, 42, 67? (a) 59 (b) 73 (c) 42 (d) 67
  22. 22.Which number is the odd one out: 70, 88, 8, 40? (a) 70 (b) 88 (c) 8 (d) 40
  23. 23.Which number is the odd one out: 38, 47, 41, 13? (a) 38 (b) 47 (c) 41 (d) 13
  24. 24.Which number is the odd one out: 16, 83, 2, 47? (a) 16 (b) 83 (c) 2 (d) 47
  25. 25.Which number is the odd one out: 50, 73, 31, 19? (a) 50 (b) 73 (c) 31 (d) 19
  26. 26.Which number is the odd one out: 81, 45, 60, 36? (a) 81 (b) 45 (c) 60 (d) 36
  27. 27.Which number is the odd one out: 64, 41, 97, 31? (a) 64 (b) 41 (c) 97 (d) 31
  28. 28.Which number is the odd one out: 13, 17, 50, 31? (a) 13 (b) 17 (c) 50 (d) 31
  29. 29.Which number is the odd one out: 79, 92, 37, 13? (a) 79 (b) 92 (c) 37 (d) 13
  30. 30.Which number is the odd one out: 73, 44, 37, 29? (a) 73 (b) 44 (c) 37 (d) 29
  31. 31.Which number is the odd one out: 71, 21, 7, 59? (a) 71 (b) 21 (c) 7 (d) 59
  32. 32.Which number is the odd one out: 29, 19, 42, 97? (a) 29 (b) 19 (c) 42 (d) 97
  33. 33.Which number is the odd one out: 19, 79, 34, 61? (a) 19 (b) 79 (c) 34 (d) 61
  34. 34.Which number is the odd one out: 24, 32, 92, 48? (a) 24 (b) 32 (c) 92 (d) 48
  35. 35.Which number is the odd one out: 64, 61, 17, 53? (a) 64 (b) 61 (c) 17 (d) 53
  36. 36.Which number is the odd one out: 32, 81, 9, 64? (a) 32 (b) 81 (c) 9 (d) 64
  37. 37.Which number is the odd one out: 85, 35, 88, 70? (a) 85 (b) 35 (c) 88 (d) 70
  38. 38.Which number is the odd one out: 47, 5, 50, 67? (a) 47 (b) 5 (c) 50 (d) 67
  39. 39.Which number is the odd one out: 96, 23, 24, 32? (a) 96 (b) 23 (c) 24 (d) 32
  40. 40.Which number is the odd one out: 74, 31, 71, 11? (a) 74 (b) 31 (c) 71 (d) 11

Answer key

  1. 9
  2. 54
  3. 70
  4. 63
  5. 35
  6. 60
  7. 64
  8. 16
  9. 9
  10. 75
  11. 63
  12. 24
  13. 24
  14. 96
  15. 73
  16. 52
  17. 2
  18. 88
  19. 15
  20. 30
  21. 42
  22. 70
  23. 38
  24. 16
  25. 50
  26. 60
  27. 64
  28. 50
  29. 92
  30. 44
  31. 21
  32. 42
  33. 34
  34. 92
  35. 64
  36. 32
  37. 88
  38. 50
  39. 23
  40. 74

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