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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 580 · 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: 73, 99, 59, 89? (a) 73 (b) 99 (c) 59 (d) 89
  2. 2.Which number is the odd one out: 47, 61, 34, 67? (a) 47 (b) 61 (c) 34 (d) 67
  3. 3.Which number is the odd one out: 59, 48, 53, 43? (a) 59 (b) 48 (c) 53 (d) 43
  4. 4.Which number is the odd one out: 61, 71, 13, 65? (a) 61 (b) 71 (c) 13 (d) 65
  5. 5.Which number is the odd one out: 13, 37, 36, 59? (a) 13 (b) 37 (c) 36 (d) 59
  6. 6.Which number is the odd one out: 20, 97, 17, 67? (a) 20 (b) 97 (c) 17 (d) 67
  7. 7.Which number is the odd one out: 61, 23, 76, 89? (a) 61 (b) 23 (c) 76 (d) 89
  8. 8.Which number is the odd one out: 80, 43, 17, 5? (a) 80 (b) 43 (c) 17 (d) 5
  9. 9.Which number is the odd one out: 40, 8, 80, 51? (a) 40 (b) 8 (c) 80 (d) 51
  10. 10.Which number is the odd one out: 32, 16, 81, 9? (a) 32 (b) 16 (c) 81 (d) 9
  11. 11.Which number is the odd one out: 43, 33, 48, 19? (a) 43 (b) 33 (c) 48 (d) 19
  12. 12.Which number is the odd one out: 9, 96, 24, 18? (a) 9 (b) 96 (c) 24 (d) 18
  13. 13.Which number is the odd one out: 31, 69, 19, 23? (a) 31 (b) 69 (c) 19 (d) 23
  14. 14.Which number is the odd one out: 79, 59, 53, 48? (a) 79 (b) 59 (c) 53 (d) 48
  15. 15.Which number is the odd one out: 61, 25, 47, 89? (a) 61 (b) 25 (c) 47 (d) 89
  16. 16.Which number is the odd one out: 59, 33, 71, 89? (a) 59 (b) 33 (c) 71 (d) 89
  17. 17.Which number is the odd one out: 48, 9, 36, 96? (a) 48 (b) 9 (c) 36 (d) 96
  18. 18.Which number is the odd one out: 11, 79, 17, 38? (a) 11 (b) 79 (c) 17 (d) 38
  19. 19.Which number is the odd one out: 27, 95, 85, 45? (a) 27 (b) 95 (c) 85 (d) 45
  20. 20.Which number is the odd one out: 72, 43, 61, 23? (a) 72 (b) 43 (c) 61 (d) 23
  21. 21.Which number is the odd one out: 45, 17, 73, 59? (a) 45 (b) 17 (c) 73 (d) 59
  22. 22.Which number is the odd one out: 72, 18, 83, 24? (a) 72 (b) 18 (c) 83 (d) 24
  23. 23.Which number is the odd one out: 42, 41, 89, 21? (a) 42 (b) 41 (c) 89 (d) 21
  24. 24.Which number is the odd one out: 71, 94, 61, 31? (a) 71 (b) 94 (c) 61 (d) 31
  25. 25.Which number is the odd one out: 4, 16, 3, 64? (a) 4 (b) 16 (c) 3 (d) 64
  26. 26.Which number is the odd one out: 76, 71, 47, 2? (a) 76 (b) 71 (c) 47 (d) 2
  27. 27.Which number is the odd one out: 88, 20, 74, 80? (a) 88 (b) 20 (c) 74 (d) 80
  28. 28.Which number is the odd one out: 37, 17, 98, 43? (a) 37 (b) 17 (c) 98 (d) 43
  29. 29.Which number is the odd one out: 97, 24, 31, 61? (a) 97 (b) 24 (c) 31 (d) 61
  30. 30.Which number is the odd one out: 61, 79, 56, 19? (a) 61 (b) 79 (c) 56 (d) 19
  31. 31.Which number is the odd one out: 70, 67, 5, 43? (a) 70 (b) 67 (c) 5 (d) 43
  32. 32.Which number is the odd one out: 6, 91, 66, 42? (a) 6 (b) 91 (c) 66 (d) 42
  33. 33.Which number is the odd one out: 54, 47, 29, 41? (a) 54 (b) 47 (c) 29 (d) 41
  34. 34.Which number is the odd one out: 22, 48, 96, 24? (a) 22 (b) 48 (c) 96 (d) 24
  35. 35.Which number is the odd one out: 54, 18, 95, 45? (a) 54 (b) 18 (c) 95 (d) 45
  36. 36.Which number is the odd one out: 47, 67, 49, 37? (a) 47 (b) 67 (c) 49 (d) 37
  37. 37.Which number is the odd one out: 59, 87, 18, 31? (a) 59 (b) 87 (c) 18 (d) 31
  38. 38.Which number is the odd one out: 55, 10, 25, 4? (a) 55 (b) 10 (c) 25 (d) 4
  39. 39.Which number is the odd one out: 29, 13, 79, 8? (a) 29 (b) 13 (c) 79 (d) 8
  40. 40.Which number is the odd one out: 2, 89, 24, 47? (a) 2 (b) 89 (c) 24 (d) 47

Answer key

  1. 99
  2. 34
  3. 48
  4. 65
  5. 36
  6. 20
  7. 76
  8. 80
  9. 51
  10. 32
  11. 48
  12. 9
  13. 69
  14. 48
  15. 25
  16. 33
  17. 9
  18. 38
  19. 27
  20. 72
  21. 45
  22. 83
  23. 42
  24. 94
  25. 3
  26. 76
  27. 74
  28. 98
  29. 24
  30. 56
  31. 70
  32. 91
  33. 54
  34. 22
  35. 95
  36. 49
  37. 18
  38. 4
  39. 8
  40. 24

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