Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 974 · 40 questions

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.

1. 1.Which number is the odd one out: 9, 25, 90, 54? (a) 9 (b) 25 (c) 90 (d) 54
2. 2.Which number is the odd one out: 83, 62, 73, 13? (a) 83 (b) 62 (c) 73 (d) 13
3. 3.Which number is the odd one out: 11, 41, 83, 38? (a) 11 (b) 41 (c) 83 (d) 38
4. 4.Which number is the odd one out: 53, 87, 54, 17? (a) 53 (b) 87 (c) 54 (d) 17
5. 5.Which number is the odd one out: 71, 29, 83, 58? (a) 71 (b) 29 (c) 83 (d) 58
6. 6.Which number is the odd one out: 53, 89, 27, 47? (a) 53 (b) 89 (c) 27 (d) 47
7. 7.Which number is the odd one out: 38, 97, 29, 53? (a) 38 (b) 97 (c) 29 (d) 53
8. 8.Which number is the odd one out: 44, 29, 71, 47? (a) 44 (b) 29 (c) 71 (d) 47
9. 9.Which number is the odd one out: 68, 7, 58, 92? (a) 68 (b) 7 (c) 58 (d) 92
10. 10.Which number is the odd one out: 4, 16, 64, 50? (a) 4 (b) 16 (c) 64 (d) 50
11. 11.Which number is the odd one out: 71, 39, 74, 3? (a) 71 (b) 39 (c) 74 (d) 3
12. 12.Which number is the odd one out: 83, 10, 89, 13? (a) 83 (b) 10 (c) 89 (d) 13
13. 13.Which number is the odd one out: 41, 95, 19, 97? (a) 41 (b) 95 (c) 19 (d) 97
14. 14.Which number is the odd one out: 24, 96, 69, 78? (a) 24 (b) 96 (c) 69 (d) 78
15. 15.Which number is the odd one out: 31, 59, 66, 39? (a) 31 (b) 59 (c) 66 (d) 39
16. 16.Which number is the odd one out: 75, 5, 15, 41? (a) 75 (b) 5 (c) 15 (d) 41
17. 17.Which number is the odd one out: 50, 97, 5, 29? (a) 50 (b) 97 (c) 5 (d) 29
18. 18.Which number is the odd one out: 38, 97, 2, 37? (a) 38 (b) 97 (c) 2 (d) 37
19. 19.Which number is the odd one out: 29, 47, 73, 74? (a) 29 (b) 47 (c) 73 (d) 74
20. 20.Which number is the odd one out: 36, 81, 27, 60? (a) 36 (b) 81 (c) 27 (d) 60
21. 21.Which number is the odd one out: 63, 28, 51, 27? (a) 63 (b) 28 (c) 51 (d) 27
22. 22.Which number is the odd one out: 91, 77, 21, 18? (a) 91 (b) 77 (c) 21 (d) 18
23. 23.Which number is the odd one out: 76, 25, 16, 88? (a) 76 (b) 25 (c) 16 (d) 88
24. 24.Which number is the odd one out: 21, 39, 91, 77? (a) 21 (b) 39 (c) 91 (d) 77
25. 25.Which number is the odd one out: 29, 94, 73, 53? (a) 29 (b) 94 (c) 73 (d) 53
26. 26.Which number is the odd one out: 33, 30, 45, 90? (a) 33 (b) 30 (c) 45 (d) 90
27. 27.Which number is the odd one out: 24, 65, 55, 15? (a) 24 (b) 65 (c) 55 (d) 15
28. 28.Which number is the odd one out: 53, 76, 61, 67? (a) 53 (b) 76 (c) 61 (d) 67
29. 29.Which number is the odd one out: 97, 83, 17, 34? (a) 97 (b) 83 (c) 17 (d) 34
30. 30.Which number is the odd one out: 52, 32, 80, 40? (a) 52 (b) 32 (c) 80 (d) 40
31. 31.Which number is the odd one out: 66, 59, 17, 89? (a) 66 (b) 59 (c) 17 (d) 89
32. 32.Which number is the odd one out: 97, 42, 87, 7? (a) 97 (b) 42 (c) 87 (d) 7
33. 33.Which number is the odd one out: 28, 56, 61, 8? (a) 28 (b) 56 (c) 61 (d) 8
34. 34.Which number is the odd one out: 64, 77, 32, 16? (a) 64 (b) 77 (c) 32 (d) 16
35. 35.Which number is the odd one out: 96, 77, 91, 21? (a) 96 (b) 77 (c) 91 (d) 21
36. 36.Which number is the odd one out: 77, 35, 15, 21? (a) 77 (b) 35 (c) 15 (d) 21
37. 37.Which number is the odd one out: 83, 73, 82, 47? (a) 83 (b) 73 (c) 82 (d) 47
38. 38.Which number is the odd one out: 2, 89, 37, 84? (a) 2 (b) 89 (c) 37 (d) 84
39. 39.Which number is the odd one out: 41, 44, 67, 83? (a) 41 (b) 44 (c) 67 (d) 83
40. 40.Which number is the odd one out: 29, 73, 59, 51? (a) 29 (b) 73 (c) 59 (d) 51

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