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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 608 · 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: 64, 63, 9, 16? (a) 64 (b) 63 (c) 9 (d) 16
  2. 2.Which number is the odd one out: 78, 43, 41, 47? (a) 78 (b) 43 (c) 41 (d) 47
  3. 3.Which number is the odd one out: 76, 68, 22, 44? (a) 76 (b) 68 (c) 22 (d) 44
  4. 4.Which number is the odd one out: 19, 52, 59, 43? (a) 19 (b) 52 (c) 59 (d) 43
  5. 5.Which number is the odd one out: 11, 89, 99, 19? (a) 11 (b) 89 (c) 99 (d) 19
  6. 6.Which number is the odd one out: 98, 7, 29, 41? (a) 98 (b) 7 (c) 29 (d) 41
  7. 7.Which number is the odd one out: 19, 65, 61, 5? (a) 19 (b) 65 (c) 61 (d) 5
  8. 8.Which number is the odd one out: 50, 75, 27, 99? (a) 50 (b) 75 (c) 27 (d) 99
  9. 9.Which number is the odd one out: 15, 75, 79, 95? (a) 15 (b) 75 (c) 79 (d) 95
  10. 10.Which number is the odd one out: 13, 23, 83, 85? (a) 13 (b) 23 (c) 83 (d) 85
  11. 11.Which number is the odd one out: 15, 99, 16, 45? (a) 15 (b) 99 (c) 16 (d) 45
  12. 12.Which number is the odd one out: 11, 68, 2, 44? (a) 11 (b) 68 (c) 2 (d) 44
  13. 13.Which number is the odd one out: 48, 73, 79, 53? (a) 48 (b) 73 (c) 79 (d) 53
  14. 14.Which number is the odd one out: 6, 24, 80, 40? (a) 6 (b) 24 (c) 80 (d) 40
  15. 15.Which number is the odd one out: 92, 81, 99, 9? (a) 92 (b) 81 (c) 99 (d) 9
  16. 16.Which number is the odd one out: 11, 31, 38, 79? (a) 11 (b) 31 (c) 38 (d) 79
  17. 17.Which number is the odd one out: 24, 8, 48, 17? (a) 24 (b) 8 (c) 48 (d) 17
  18. 18.Which number is the odd one out: 18, 61, 37, 17? (a) 18 (b) 61 (c) 37 (d) 17
  19. 19.Which number is the odd one out: 83, 13, 38, 89? (a) 83 (b) 13 (c) 38 (d) 89
  20. 20.Which number is the odd one out: 99, 79, 19, 17? (a) 99 (b) 79 (c) 19 (d) 17
  21. 21.Which number is the odd one out: 67, 73, 23, 33? (a) 67 (b) 73 (c) 23 (d) 33
  22. 22.Which number is the odd one out: 13, 70, 11, 89? (a) 13 (b) 70 (c) 11 (d) 89
  23. 23.Which number is the odd one out: 78, 89, 37, 19? (a) 78 (b) 89 (c) 37 (d) 19
  24. 24.Which number is the odd one out: 2, 19, 80, 37? (a) 2 (b) 19 (c) 80 (d) 37
  25. 25.Which number is the odd one out: 55, 41, 59, 89? (a) 55 (b) 41 (c) 59 (d) 89
  26. 26.Which number is the odd one out: 44, 79, 59, 97? (a) 44 (b) 79 (c) 59 (d) 97
  27. 27.Which number is the odd one out: 20, 73, 71, 79? (a) 20 (b) 73 (c) 71 (d) 79
  28. 28.Which number is the odd one out: 56, 39, 57, 51? (a) 56 (b) 39 (c) 57 (d) 51
  29. 29.Which number is the odd one out: 71, 37, 47, 32? (a) 71 (b) 37 (c) 47 (d) 32
  30. 30.Which number is the odd one out: 54, 90, 10, 18? (a) 54 (b) 90 (c) 10 (d) 18
  31. 31.Which number is the odd one out: 11, 89, 83, 96? (a) 11 (b) 89 (c) 83 (d) 96
  32. 32.Which number is the odd one out: 17, 59, 40, 67? (a) 17 (b) 59 (c) 40 (d) 67
  33. 33.Which number is the odd one out: 89, 80, 31, 23? (a) 89 (b) 80 (c) 31 (d) 23
  34. 34.Which number is the odd one out: 73, 43, 7, 28? (a) 73 (b) 43 (c) 7 (d) 28
  35. 35.Which number is the odd one out: 21, 98, 75, 70? (a) 21 (b) 98 (c) 75 (d) 70
  36. 36.Which number is the odd one out: 43, 53, 97, 51? (a) 43 (b) 53 (c) 97 (d) 51
  37. 37.Which number is the odd one out: 84, 43, 29, 61? (a) 84 (b) 43 (c) 29 (d) 61
  38. 38.Which number is the odd one out: 53, 89, 28, 17? (a) 53 (b) 89 (c) 28 (d) 17
  39. 39.Which number is the odd one out: 96, 59, 78, 24? (a) 96 (b) 59 (c) 78 (d) 24
  40. 40.Which number is the odd one out: 3, 89, 48, 97? (a) 3 (b) 89 (c) 48 (d) 97

Answer key

  1. 63
  2. 78
  3. 22
  4. 52
  5. 99
  6. 98
  7. 65
  8. 50
  9. 79
  10. 85
  11. 16
  12. 11
  13. 48
  14. 6
  15. 92
  16. 38
  17. 17
  18. 18
  19. 38
  20. 99
  21. 33
  22. 70
  23. 78
  24. 80
  25. 55
  26. 44
  27. 20
  28. 56
  29. 32
  30. 10
  31. 96
  32. 40
  33. 80
  34. 28
  35. 75
  36. 51
  37. 84
  38. 28
  39. 59
  40. 48

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