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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 952 · 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: 59, 9, 71, 43? (a) 59 (b) 9 (c) 71 (d) 43
  2. 2.Which number is the odd one out: 43, 28, 11, 41? (a) 43 (b) 28 (c) 11 (d) 41
  3. 3.Which number is the odd one out: 8, 25, 68, 40? (a) 8 (b) 25 (c) 68 (d) 40
  4. 4.Which number is the odd one out: 34, 37, 67, 71? (a) 34 (b) 37 (c) 67 (d) 71
  5. 5.Which number is the odd one out: 89, 58, 71, 61? (a) 89 (b) 58 (c) 71 (d) 61
  6. 6.Which number is the odd one out: 37, 59, 60, 19? (a) 37 (b) 59 (c) 60 (d) 19
  7. 7.Which number is the odd one out: 53, 89, 29, 81? (a) 53 (b) 89 (c) 29 (d) 81
  8. 8.Which number is the odd one out: 64, 4, 16, 74? (a) 64 (b) 4 (c) 16 (d) 74
  9. 9.Which number is the odd one out: 71, 28, 29, 61? (a) 71 (b) 28 (c) 29 (d) 61
  10. 10.Which number is the odd one out: 49, 16, 7, 64? (a) 49 (b) 16 (c) 7 (d) 64
  11. 11.Which number is the odd one out: 43, 59, 61, 58? (a) 43 (b) 59 (c) 61 (d) 58
  12. 12.Which number is the odd one out: 17, 31, 90, 73? (a) 17 (b) 31 (c) 90 (d) 73
  13. 13.Which number is the odd one out: 30, 90, 11, 27? (a) 30 (b) 90 (c) 11 (d) 27
  14. 14.Which number is the odd one out: 71, 59, 9, 17? (a) 71 (b) 59 (c) 9 (d) 17
  15. 15.Which number is the odd one out: 48, 23, 67, 37? (a) 48 (b) 23 (c) 67 (d) 37
  16. 16.Which number is the odd one out: 95, 47, 31, 17? (a) 95 (b) 47 (c) 31 (d) 17
  17. 17.Which number is the odd one out: 92, 17, 97, 89? (a) 92 (b) 17 (c) 97 (d) 89
  18. 18.Which number is the odd one out: 11, 35, 79, 19? (a) 11 (b) 35 (c) 79 (d) 19
  19. 19.Which number is the odd one out: 90, 45, 37, 18? (a) 90 (b) 45 (c) 37 (d) 18
  20. 20.Which number is the odd one out: 76, 28, 49, 4? (a) 76 (b) 28 (c) 49 (d) 4
  21. 21.Which number is the odd one out: 11, 73, 17, 33? (a) 11 (b) 73 (c) 17 (d) 33
  22. 22.Which number is the odd one out: 67, 19, 43, 94? (a) 67 (b) 19 (c) 43 (d) 94
  23. 23.Which number is the odd one out: 84, 51, 67, 89? (a) 84 (b) 51 (c) 67 (d) 89
  24. 24.Which number is the odd one out: 53, 41, 13, 63? (a) 53 (b) 41 (c) 13 (d) 63
  25. 25.Which number is the odd one out: 59, 2, 28, 37? (a) 59 (b) 2 (c) 28 (d) 37
  26. 26.Which number is the odd one out: 83, 70, 67, 91? (a) 83 (b) 70 (c) 67 (d) 91
  27. 27.Which number is the odd one out: 90, 48, 72, 50? (a) 90 (b) 48 (c) 72 (d) 50
  28. 28.Which number is the odd one out: 67, 12, 95, 5? (a) 67 (b) 12 (c) 95 (d) 5
  29. 29.Which number is the odd one out: 73, 2, 47, 42? (a) 73 (b) 2 (c) 47 (d) 42
  30. 30.Which number is the odd one out: 58, 49, 8, 32? (a) 58 (b) 49 (c) 8 (d) 32
  31. 31.Which number is the odd one out: 29, 63, 61, 13? (a) 29 (b) 63 (c) 61 (d) 13
  32. 32.Which number is the odd one out: 97, 11, 27, 79? (a) 97 (b) 11 (c) 27 (d) 79
  33. 33.Which number is the odd one out: 6, 99, 48, 24? (a) 6 (b) 99 (c) 48 (d) 24
  34. 34.Which number is the odd one out: 8, 36, 88, 24? (a) 8 (b) 36 (c) 88 (d) 24
  35. 35.Which number is the odd one out: 53, 42, 47, 11? (a) 53 (b) 42 (c) 47 (d) 11
  36. 36.Which number is the odd one out: 22, 79, 17, 23? (a) 22 (b) 79 (c) 17 (d) 23
  37. 37.Which number is the odd one out: 48, 65, 30, 85? (a) 48 (b) 65 (c) 30 (d) 85
  38. 38.Which number is the odd one out: 96, 43, 6, 24? (a) 96 (b) 43 (c) 6 (d) 24
  39. 39.Which number is the odd one out: 80, 45, 32, 8? (a) 80 (b) 45 (c) 32 (d) 8
  40. 40.Which number is the odd one out: 97, 13, 89, 30? (a) 97 (b) 13 (c) 89 (d) 30

Answer key

  1. 9
  2. 28
  3. 25
  4. 34
  5. 58
  6. 60
  7. 81
  8. 74
  9. 28
  10. 7
  11. 58
  12. 90
  13. 11
  14. 9
  15. 48
  16. 95
  17. 92
  18. 35
  19. 37
  20. 49
  21. 33
  22. 94
  23. 84
  24. 63
  25. 28
  26. 70
  27. 50
  28. 12
  29. 42
  30. 49
  31. 63
  32. 27
  33. 99
  34. 36
  35. 42
  36. 22
  37. 48
  38. 43
  39. 45
  40. 30

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