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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 941 · 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: 19, 71, 62, 83? (a) 19 (b) 71 (c) 62 (d) 83
  2. 2.Which number is the odd one out: 29, 21, 73, 53? (a) 29 (b) 21 (c) 73 (d) 53
  3. 3.Which number is the odd one out: 97, 96, 67, 19? (a) 97 (b) 96 (c) 67 (d) 19
  4. 4.Which number is the odd one out: 9, 73, 61, 3? (a) 9 (b) 73 (c) 61 (d) 3
  5. 5.Which number is the odd one out: 37, 26, 53, 23? (a) 37 (b) 26 (c) 53 (d) 23
  6. 6.Which number is the odd one out: 41, 67, 23, 26? (a) 41 (b) 67 (c) 23 (d) 26
  7. 7.Which number is the odd one out: 13, 66, 17, 2? (a) 13 (b) 66 (c) 17 (d) 2
  8. 8.Which number is the odd one out: 45, 31, 97, 43? (a) 45 (b) 31 (c) 97 (d) 43
  9. 9.Which number is the odd one out: 48, 32, 24, 2? (a) 48 (b) 32 (c) 24 (d) 2
  10. 10.Which number is the odd one out: 17, 21, 3, 14? (a) 17 (b) 21 (c) 3 (d) 14
  11. 11.Which number is the odd one out: 54, 30, 61, 90? (a) 54 (b) 30 (c) 61 (d) 90
  12. 12.Which number is the odd one out: 79, 20, 43, 89? (a) 79 (b) 20 (c) 43 (d) 89
  13. 13.Which number is the odd one out: 89, 8, 48, 96? (a) 89 (b) 8 (c) 48 (d) 96
  14. 14.Which number is the odd one out: 16, 64, 73, 4? (a) 16 (b) 64 (c) 73 (d) 4
  15. 15.Which number is the odd one out: 89, 95, 79, 23? (a) 89 (b) 95 (c) 79 (d) 23
  16. 16.Which number is the odd one out: 94, 72, 18, 48? (a) 94 (b) 72 (c) 18 (d) 48
  17. 17.Which number is the odd one out: 85, 55, 15, 3? (a) 85 (b) 55 (c) 15 (d) 3
  18. 18.Which number is the odd one out: 49, 41, 31, 7? (a) 49 (b) 41 (c) 31 (d) 7
  19. 19.Which number is the odd one out: 48, 4, 16, 96? (a) 48 (b) 4 (c) 16 (d) 96
  20. 20.Which number is the odd one out: 85, 29, 61, 20? (a) 85 (b) 29 (c) 61 (d) 20
  21. 21.Which number is the odd one out: 17, 99, 71, 43? (a) 17 (b) 99 (c) 71 (d) 43
  22. 22.Which number is the odd one out: 96, 79, 48, 8? (a) 96 (b) 79 (c) 48 (d) 8
  23. 23.Which number is the odd one out: 96, 24, 19, 66? (a) 96 (b) 24 (c) 19 (d) 66
  24. 24.Which number is the odd one out: 14, 91, 55, 98? (a) 14 (b) 91 (c) 55 (d) 98
  25. 25.Which number is the odd one out: 54, 18, 72, 88? (a) 54 (b) 18 (c) 72 (d) 88
  26. 26.Which number is the odd one out: 2, 97, 46, 11? (a) 2 (b) 97 (c) 46 (d) 11
  27. 27.Which number is the odd one out: 89, 67, 11, 6? (a) 89 (b) 67 (c) 11 (d) 6
  28. 28.Which number is the odd one out: 7, 70, 10, 5? (a) 7 (b) 70 (c) 10 (d) 5
  29. 29.Which number is the odd one out: 82, 22, 79, 38? (a) 82 (b) 22 (c) 79 (d) 38
  30. 30.Which number is the odd one out: 89, 53, 18, 29? (a) 89 (b) 53 (c) 18 (d) 29
  31. 31.Which number is the odd one out: 12, 41, 71, 53? (a) 12 (b) 41 (c) 71 (d) 53
  32. 32.Which number is the odd one out: 65, 32, 88, 40? (a) 65 (b) 32 (c) 88 (d) 40
  33. 33.Which number is the odd one out: 3, 43, 51, 53? (a) 3 (b) 43 (c) 51 (d) 53
  34. 34.Which number is the odd one out: 29, 69, 13, 79? (a) 29 (b) 69 (c) 13 (d) 79
  35. 35.Which number is the odd one out: 67, 50, 83, 61? (a) 67 (b) 50 (c) 83 (d) 61
  36. 36.Which number is the odd one out: 82, 87, 39, 57? (a) 82 (b) 87 (c) 39 (d) 57
  37. 37.Which number is the odd one out: 79, 68, 2, 52? (a) 79 (b) 68 (c) 2 (d) 52
  38. 38.Which number is the odd one out: 80, 19, 53, 73? (a) 80 (b) 19 (c) 53 (d) 73
  39. 39.Which number is the odd one out: 29, 13, 91, 37? (a) 29 (b) 13 (c) 91 (d) 37
  40. 40.Which number is the odd one out: 32, 64, 16, 22? (a) 32 (b) 64 (c) 16 (d) 22

Answer key

  1. 62
  2. 21
  3. 96
  4. 9
  5. 26
  6. 26
  7. 66
  8. 45
  9. 2
  10. 14
  11. 61
  12. 20
  13. 89
  14. 73
  15. 95
  16. 94
  17. 3
  18. 49
  19. 4
  20. 20
  21. 99
  22. 79
  23. 19
  24. 55
  25. 88
  26. 46
  27. 6
  28. 7
  29. 79
  30. 18
  31. 12
  32. 65
  33. 51
  34. 69
  35. 50
  36. 82
  37. 79
  38. 80
  39. 91
  40. 22

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