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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 233 · 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: 60, 3, 47, 79? (a) 60 (b) 3 (c) 47 (d) 79
  2. 2.Which number is the odd one out: 24, 41, 8, 96? (a) 24 (b) 41 (c) 8 (d) 96
  3. 3.Which number is the odd one out: 68, 80, 39, 40? (a) 68 (b) 80 (c) 39 (d) 40
  4. 4.Which number is the odd one out: 9, 74, 81, 27? (a) 9 (b) 74 (c) 81 (d) 27
  5. 5.Which number is the odd one out: 75, 35, 69, 51? (a) 75 (b) 35 (c) 69 (d) 51
  6. 6.Which number is the odd one out: 55, 73, 79, 53? (a) 55 (b) 73 (c) 79 (d) 53
  7. 7.Which number is the odd one out: 50, 47, 10, 5? (a) 50 (b) 47 (c) 10 (d) 5
  8. 8.Which number is the odd one out: 59, 11, 83, 65? (a) 59 (b) 11 (c) 83 (d) 65
  9. 9.Which number is the odd one out: 39, 50, 15, 10? (a) 39 (b) 50 (c) 15 (d) 10
  10. 10.Which number is the odd one out: 73, 13, 8, 41? (a) 73 (b) 13 (c) 8 (d) 41
  11. 11.Which number is the odd one out: 15, 75, 98, 85? (a) 15 (b) 75 (c) 98 (d) 85
  12. 12.Which number is the odd one out: 29, 19, 9, 37? (a) 29 (b) 19 (c) 9 (d) 37
  13. 13.Which number is the odd one out: 52, 68, 49, 44? (a) 52 (b) 68 (c) 49 (d) 44
  14. 14.Which number is the odd one out: 61, 44, 89, 19? (a) 61 (b) 44 (c) 89 (d) 19
  15. 15.Which number is the odd one out: 13, 41, 81, 71? (a) 13 (b) 41 (c) 81 (d) 71
  16. 16.Which number is the odd one out: 83, 12, 89, 17? (a) 83 (b) 12 (c) 89 (d) 17
  17. 17.Which number is the odd one out: 71, 57, 59, 3? (a) 71 (b) 57 (c) 59 (d) 3
  18. 18.Which number is the odd one out: 35, 24, 12, 48? (a) 35 (b) 24 (c) 12 (d) 48
  19. 19.Which number is the odd one out: 83, 34, 47, 73? (a) 83 (b) 34 (c) 47 (d) 73
  20. 20.Which number is the odd one out: 8, 96, 10, 60? (a) 8 (b) 96 (c) 10 (d) 60
  21. 21.Which number is the odd one out: 71, 39, 60, 19? (a) 71 (b) 39 (c) 60 (d) 19
  22. 22.Which number is the odd one out: 34, 95, 14, 98? (a) 34 (b) 95 (c) 14 (d) 98
  23. 23.Which number is the odd one out: 14, 59, 67, 83? (a) 14 (b) 59 (c) 67 (d) 83
  24. 24.Which number is the odd one out: 59, 74, 2, 43? (a) 59 (b) 74 (c) 2 (d) 43
  25. 25.Which number is the odd one out: 97, 79, 87, 42? (a) 97 (b) 79 (c) 87 (d) 42
  26. 26.Which number is the odd one out: 3, 11, 61, 75? (a) 3 (b) 11 (c) 61 (d) 75
  27. 27.Which number is the odd one out: 80, 24, 15, 65? (a) 80 (b) 24 (c) 15 (d) 65
  28. 28.Which number is the odd one out: 72, 69, 85, 95? (a) 72 (b) 69 (c) 85 (d) 95
  29. 29.Which number is the odd one out: 27, 81, 9, 20? (a) 27 (b) 81 (c) 9 (d) 20
  30. 30.Which number is the odd one out: 3, 87, 19, 61? (a) 3 (b) 87 (c) 19 (d) 61
  31. 31.Which number is the odd one out: 36, 16, 47, 72? (a) 36 (b) 16 (c) 47 (d) 72
  32. 32.Which number is the odd one out: 41, 99, 51, 27? (a) 41 (b) 99 (c) 51 (d) 27
  33. 33.Which number is the odd one out: 37, 61, 59, 25? (a) 37 (b) 61 (c) 59 (d) 25
  34. 34.Which number is the odd one out: 47, 43, 11, 51? (a) 47 (b) 43 (c) 11 (d) 51
  35. 35.Which number is the odd one out: 69, 83, 18, 23? (a) 69 (b) 83 (c) 18 (d) 23
  36. 36.Which number is the odd one out: 30, 15, 72, 75? (a) 30 (b) 15 (c) 72 (d) 75
  37. 37.Which number is the odd one out: 39, 57, 40, 15? (a) 39 (b) 57 (c) 40 (d) 15
  38. 38.Which number is the odd one out: 77, 7, 41, 10? (a) 77 (b) 7 (c) 41 (d) 10
  39. 39.Which number is the odd one out: 68, 45, 16, 64? (a) 68 (b) 45 (c) 16 (d) 64
  40. 40.Which number is the odd one out: 11, 72, 23, 47? (a) 11 (b) 72 (c) 23 (d) 47

Answer key

  1. 60
  2. 41
  3. 39
  4. 74
  5. 35
  6. 55
  7. 47
  8. 65
  9. 39
  10. 8
  11. 98
  12. 9
  13. 49
  14. 44
  15. 81
  16. 12
  17. 57
  18. 35
  19. 34
  20. 10
  21. 60
  22. 95
  23. 14
  24. 74
  25. 42
  26. 75
  27. 24
  28. 72
  29. 20
  30. 87
  31. 47
  32. 41
  33. 25
  34. 51
  35. 18
  36. 72
  37. 40
  38. 10
  39. 45
  40. 72

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