Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 720 · 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: 79, 47, 8, 11? (a) 79 (b) 47 (c) 8 (d) 11
2. 2.Which number is the odd one out: 11, 84, 61, 17? (a) 11 (b) 84 (c) 61 (d) 17
3. 3.Which number is the odd one out: 19, 71, 32, 83? (a) 19 (b) 71 (c) 32 (d) 83
4. 4.Which number is the odd one out: 78, 19, 37, 23? (a) 78 (b) 19 (c) 37 (d) 23
5. 5.Which number is the odd one out: 78, 96, 8, 88? (a) 78 (b) 96 (c) 8 (d) 88
6. 6.Which number is the odd one out: 20, 19, 17, 31? (a) 20 (b) 19 (c) 17 (d) 31
7. 7.Which number is the odd one out: 31, 47, 20, 97? (a) 31 (b) 47 (c) 20 (d) 97
8. 8.Which number is the odd one out: 24, 89, 31, 13? (a) 24 (b) 89 (c) 31 (d) 13
9. 9.Which number is the odd one out: 64, 16, 88, 58? (a) 64 (b) 16 (c) 88 (d) 58
10. 10.Which number is the odd one out: 81, 59, 89, 31? (a) 81 (b) 59 (c) 89 (d) 31
11. 11.Which number is the odd one out: 71, 83, 51, 12? (a) 71 (b) 83 (c) 51 (d) 12
12. 12.Which number is the odd one out: 3, 69, 94, 17? (a) 3 (b) 69 (c) 94 (d) 17
13. 13.Which number is the odd one out: 78, 48, 24, 33? (a) 78 (b) 48 (c) 24 (d) 33
14. 14.Which number is the odd one out: 30, 73, 11, 47? (a) 30 (b) 73 (c) 11 (d) 47
15. 15.Which number is the odd one out: 31, 57, 60, 19? (a) 31 (b) 57 (c) 60 (d) 19
16. 16.Which number is the odd one out: 31, 59, 83, 68? (a) 31 (b) 59 (c) 83 (d) 68
17. 17.Which number is the odd one out: 45, 18, 90, 41? (a) 45 (b) 18 (c) 90 (d) 41
18. 18.Which number is the odd one out: 11, 41, 97, 76? (a) 11 (b) 41 (c) 97 (d) 76
19. 19.Which number is the odd one out: 16, 29, 64, 4? (a) 16 (b) 29 (c) 64 (d) 4
20. 20.Which number is the odd one out: 48, 31, 96, 8? (a) 48 (b) 31 (c) 96 (d) 8
21. 21.Which number is the odd one out: 48, 88, 24, 22? (a) 48 (b) 88 (c) 24 (d) 22
22. 22.Which number is the odd one out: 43, 3, 15, 17? (a) 43 (b) 3 (c) 15 (d) 17
23. 23.Which number is the odd one out: 79, 47, 41, 21? (a) 79 (b) 47 (c) 41 (d) 21
24. 24.Which number is the odd one out: 47, 43, 72, 3? (a) 47 (b) 43 (c) 72 (d) 3
25. 25.Which number is the odd one out: 11, 79, 17, 9? (a) 11 (b) 79 (c) 17 (d) 9
26. 26.Which number is the odd one out: 13, 7, 49, 19? (a) 13 (b) 7 (c) 49 (d) 19
27. 27.Which number is the odd one out: 22, 67, 29, 53? (a) 22 (b) 67 (c) 29 (d) 53
28. 28.Which number is the odd one out: 2, 72, 41, 11? (a) 2 (b) 72 (c) 41 (d) 11
29. 29.Which number is the odd one out: 43, 53, 33, 13? (a) 43 (b) 53 (c) 33 (d) 13
30. 30.Which number is the odd one out: 85, 88, 75, 15? (a) 85 (b) 88 (c) 75 (d) 15
31. 31.Which number is the odd one out: 24, 25, 48, 16? (a) 24 (b) 25 (c) 48 (d) 16
32. 32.Which number is the odd one out: 85, 61, 43, 5? (a) 85 (b) 61 (c) 43 (d) 5
33. 33.Which number is the odd one out: 18, 63, 84, 27? (a) 18 (b) 63 (c) 84 (d) 27
34. 34.Which number is the odd one out: 58, 53, 43, 31? (a) 58 (b) 53 (c) 43 (d) 31
35. 35.Which number is the odd one out: 73, 41, 37, 88? (a) 73 (b) 41 (c) 37 (d) 88
36. 36.Which number is the odd one out: 61, 42, 11, 67? (a) 61 (b) 42 (c) 11 (d) 67
37. 37.Which number is the odd one out: 18, 11, 47, 73? (a) 18 (b) 11 (c) 47 (d) 73
38. 38.Which number is the odd one out: 73, 41, 62, 17? (a) 73 (b) 41 (c) 62 (d) 17
39. 39.Which number is the odd one out: 2, 23, 28, 37? (a) 2 (b) 23 (c) 28 (d) 37
40. 40.Which number is the odd one out: 39, 11, 37, 67? (a) 39 (b) 11 (c) 37 (d) 67

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