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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 948 · 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: 51, 97, 13, 37? (a) 51 (b) 97 (c) 13 (d) 37
  2. 2.Which number is the odd one out: 95, 20, 48, 65? (a) 95 (b) 20 (c) 48 (d) 65
  3. 3.Which number is the odd one out: 24, 60, 20, 48? (a) 24 (b) 60 (c) 20 (d) 48
  4. 4.Which number is the odd one out: 48, 96, 99, 24? (a) 48 (b) 96 (c) 99 (d) 24
  5. 5.Which number is the odd one out: 20, 18, 90, 54? (a) 20 (b) 18 (c) 90 (d) 54
  6. 6.Which number is the odd one out: 61, 43, 27, 23? (a) 61 (b) 43 (c) 27 (d) 23
  7. 7.Which number is the odd one out: 30, 78, 66, 50? (a) 30 (b) 78 (c) 66 (d) 50
  8. 8.Which number is the odd one out: 97, 42, 17, 61? (a) 97 (b) 42 (c) 17 (d) 61
  9. 9.Which number is the odd one out: 87, 63, 21, 90? (a) 87 (b) 63 (c) 21 (d) 90
  10. 10.Which number is the odd one out: 79, 13, 12, 97? (a) 79 (b) 13 (c) 12 (d) 97
  11. 11.Which number is the odd one out: 29, 44, 59, 73? (a) 29 (b) 44 (c) 59 (d) 73
  12. 12.Which number is the odd one out: 9, 31, 61, 47? (a) 9 (b) 31 (c) 61 (d) 47
  13. 13.Which number is the odd one out: 41, 43, 55, 71? (a) 41 (b) 43 (c) 55 (d) 71
  14. 14.Which number is the odd one out: 47, 4, 16, 64? (a) 47 (b) 4 (c) 16 (d) 64
  15. 15.Which number is the odd one out: 47, 21, 43, 31? (a) 47 (b) 21 (c) 43 (d) 31
  16. 16.Which number is the odd one out: 72, 55, 18, 24? (a) 72 (b) 55 (c) 18 (d) 24
  17. 17.Which number is the odd one out: 11, 66, 53, 47? (a) 11 (b) 66 (c) 53 (d) 47
  18. 18.Which number is the odd one out: 79, 87, 41, 61? (a) 79 (b) 87 (c) 41 (d) 61
  19. 19.Which number is the odd one out: 17, 67, 72, 53? (a) 17 (b) 67 (c) 72 (d) 53
  20. 20.Which number is the odd one out: 23, 59, 60, 33? (a) 23 (b) 59 (c) 60 (d) 33
  21. 21.Which number is the odd one out: 87, 19, 79, 13? (a) 87 (b) 19 (c) 79 (d) 13
  22. 22.Which number is the odd one out: 19, 13, 70, 2? (a) 19 (b) 13 (c) 70 (d) 2
  23. 23.Which number is the odd one out: 71, 53, 70, 29? (a) 71 (b) 53 (c) 70 (d) 29
  24. 24.Which number is the odd one out: 98, 72, 14, 42? (a) 98 (b) 72 (c) 14 (d) 42
  25. 25.Which number is the odd one out: 99, 42, 35, 54? (a) 99 (b) 42 (c) 35 (d) 54
  26. 26.Which number is the odd one out: 29, 11, 77, 59? (a) 29 (b) 11 (c) 77 (d) 59
  27. 27.Which number is the odd one out: 47, 59, 93, 3? (a) 47 (b) 59 (c) 93 (d) 3
  28. 28.Which number is the odd one out: 47, 61, 16, 41? (a) 47 (b) 61 (c) 16 (d) 41
  29. 29.Which number is the odd one out: 83, 90, 37, 13? (a) 83 (b) 90 (c) 37 (d) 13
  30. 30.Which number is the odd one out: 61, 18, 54, 51? (a) 61 (b) 18 (c) 54 (d) 51
  31. 31.Which number is the odd one out: 12, 96, 60, 80? (a) 12 (b) 96 (c) 60 (d) 80
  32. 32.Which number is the odd one out: 53, 75, 13, 29? (a) 53 (b) 75 (c) 13 (d) 29
  33. 33.Which number is the odd one out: 41, 98, 59, 79? (a) 41 (b) 98 (c) 59 (d) 79
  34. 34.Which number is the odd one out: 59, 56, 31, 53? (a) 59 (b) 56 (c) 31 (d) 53
  35. 35.Which number is the odd one out: 97, 13, 41, 54? (a) 97 (b) 13 (c) 41 (d) 54
  36. 36.Which number is the odd one out: 61, 83, 84, 43? (a) 61 (b) 83 (c) 84 (d) 43
  37. 37.Which number is the odd one out: 13, 96, 97, 37? (a) 13 (b) 96 (c) 97 (d) 37
  38. 38.Which number is the odd one out: 99, 71, 17, 97? (a) 99 (b) 71 (c) 17 (d) 97
  39. 39.Which number is the odd one out: 48, 19, 88, 96? (a) 48 (b) 19 (c) 88 (d) 96
  40. 40.Which number is the odd one out: 24, 83, 61, 43? (a) 24 (b) 83 (c) 61 (d) 43

Answer key

  1. 51
  2. 48
  3. 20
  4. 99
  5. 20
  6. 27
  7. 50
  8. 42
  9. 90
  10. 12
  11. 44
  12. 9
  13. 55
  14. 47
  15. 21
  16. 55
  17. 66
  18. 87
  19. 72
  20. 60
  21. 87
  22. 70
  23. 70
  24. 72
  25. 35
  26. 77
  27. 93
  28. 16
  29. 90
  30. 61
  31. 80
  32. 75
  33. 98
  34. 56
  35. 54
  36. 84
  37. 96
  38. 99
  39. 19
  40. 24

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