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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 688 · 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, 66, 13, 53? (a) 19 (b) 66 (c) 13 (d) 53
  2. 2.Which number is the odd one out: 40, 23, 8, 80? (a) 40 (b) 23 (c) 8 (d) 80
  3. 3.Which number is the odd one out: 13, 19, 26, 97? (a) 13 (b) 19 (c) 26 (d) 97
  4. 4.Which number is the odd one out: 5, 97, 29, 90? (a) 5 (b) 97 (c) 29 (d) 90
  5. 5.Which number is the odd one out: 50, 8, 96, 48? (a) 50 (b) 8 (c) 96 (d) 48
  6. 6.Which number is the odd one out: 24, 4, 64, 48? (a) 24 (b) 4 (c) 64 (d) 48
  7. 7.Which number is the odd one out: 40, 94, 80, 20? (a) 40 (b) 94 (c) 80 (d) 20
  8. 8.Which number is the odd one out: 11, 18, 53, 13? (a) 11 (b) 18 (c) 53 (d) 13
  9. 9.Which number is the odd one out: 67, 66, 73, 43? (a) 67 (b) 66 (c) 73 (d) 43
  10. 10.Which number is the odd one out: 73, 2, 38, 59? (a) 73 (b) 2 (c) 38 (d) 59
  11. 11.Which number is the odd one out: 43, 97, 13, 26? (a) 43 (b) 97 (c) 13 (d) 26
  12. 12.Which number is the odd one out: 30, 41, 61, 13? (a) 30 (b) 41 (c) 61 (d) 13
  13. 13.Which number is the odd one out: 83, 79, 87, 19? (a) 83 (b) 79 (c) 87 (d) 19
  14. 14.Which number is the odd one out: 96, 66, 46, 48? (a) 96 (b) 66 (c) 46 (d) 48
  15. 15.Which number is the odd one out: 77, 31, 19, 23? (a) 77 (b) 31 (c) 19 (d) 23
  16. 16.Which number is the odd one out: 48, 59, 37, 43? (a) 48 (b) 59 (c) 37 (d) 43
  17. 17.Which number is the odd one out: 67, 66, 59, 23? (a) 67 (b) 66 (c) 59 (d) 23
  18. 18.Which number is the odd one out: 25, 12, 16, 24? (a) 25 (b) 12 (c) 16 (d) 24
  19. 19.Which number is the odd one out: 40, 5, 64, 16? (a) 40 (b) 5 (c) 64 (d) 16
  20. 20.Which number is the odd one out: 78, 66, 7, 42? (a) 78 (b) 66 (c) 7 (d) 42
  21. 21.Which number is the odd one out: 77, 53, 28, 23? (a) 77 (b) 53 (c) 28 (d) 23
  22. 22.Which number is the odd one out: 92, 38, 99, 44? (a) 92 (b) 38 (c) 99 (d) 44
  23. 23.Which number is the odd one out: 43, 31, 86, 97? (a) 43 (b) 31 (c) 86 (d) 97
  24. 24.Which number is the odd one out: 53, 43, 15, 23? (a) 53 (b) 43 (c) 15 (d) 23
  25. 25.Which number is the odd one out: 22, 71, 73, 67? (a) 22 (b) 71 (c) 73 (d) 67
  26. 26.Which number is the odd one out: 91, 55, 20, 77? (a) 91 (b) 55 (c) 20 (d) 77
  27. 27.Which number is the odd one out: 71, 61, 72, 79? (a) 71 (b) 61 (c) 72 (d) 79
  28. 28.Which number is the odd one out: 37, 29, 33, 23? (a) 37 (b) 29 (c) 33 (d) 23
  29. 29.Which number is the odd one out: 79, 29, 14, 61? (a) 79 (b) 29 (c) 14 (d) 61
  30. 30.Which number is the odd one out: 33, 19, 47, 61? (a) 33 (b) 19 (c) 47 (d) 61
  31. 31.Which number is the odd one out: 22, 91, 98, 58? (a) 22 (b) 91 (c) 98 (d) 58
  32. 32.Which number is the odd one out: 12, 37, 41, 17? (a) 12 (b) 37 (c) 41 (d) 17
  33. 33.Which number is the odd one out: 17, 41, 47, 6? (a) 17 (b) 41 (c) 47 (d) 6
  34. 34.Which number is the odd one out: 98, 67, 29, 37? (a) 98 (b) 67 (c) 29 (d) 37
  35. 35.Which number is the odd one out: 23, 16, 97, 41? (a) 23 (b) 16 (c) 97 (d) 41
  36. 36.Which number is the odd one out: 46, 31, 79, 13? (a) 46 (b) 31 (c) 79 (d) 13
  37. 37.Which number is the odd one out: 2, 53, 6, 71? (a) 2 (b) 53 (c) 6 (d) 71
  38. 38.Which number is the odd one out: 24, 67, 79, 61? (a) 24 (b) 67 (c) 79 (d) 61
  39. 39.Which number is the odd one out: 16, 64, 5, 25? (a) 16 (b) 64 (c) 5 (d) 25
  40. 40.Which number is the odd one out: 28, 56, 32, 31? (a) 28 (b) 56 (c) 32 (d) 31

Answer key

  1. 66
  2. 23
  3. 26
  4. 90
  5. 50
  6. 4
  7. 94
  8. 18
  9. 66
  10. 38
  11. 26
  12. 30
  13. 87
  14. 46
  15. 77
  16. 48
  17. 66
  18. 25
  19. 5
  20. 7
  21. 28
  22. 99
  23. 86
  24. 15
  25. 22
  26. 20
  27. 72
  28. 33
  29. 14
  30. 33
  31. 91
  32. 12
  33. 6
  34. 98
  35. 16
  36. 46
  37. 6
  38. 24
  39. 5
  40. 31

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