Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 728 · 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: 25, 23, 41, 43? (a) 25 (b) 23 (c) 41 (d) 43
2. 2.Which number is the odd one out: 91, 35, 74, 70? (a) 91 (b) 35 (c) 74 (d) 70
3. 3.Which number is the odd one out: 66, 62, 54, 18? (a) 66 (b) 62 (c) 54 (d) 18
4. 4.Which number is the odd one out: 4, 17, 13, 41? (a) 4 (b) 17 (c) 13 (d) 41
5. 5.Which number is the odd one out: 19, 79, 84, 83? (a) 19 (b) 79 (c) 84 (d) 83
6. 6.Which number is the odd one out: 31, 83, 51, 53? (a) 31 (b) 83 (c) 51 (d) 53
7. 7.Which number is the odd one out: 74, 71, 31, 43? (a) 74 (b) 71 (c) 31 (d) 43
8. 8.Which number is the odd one out: 89, 86, 23, 13? (a) 89 (b) 86 (c) 23 (d) 13
9. 9.Which number is the odd one out: 24, 61, 71, 17? (a) 24 (b) 61 (c) 71 (d) 17
10. 10.Which number is the odd one out: 99, 3, 59, 67? (a) 99 (b) 3 (c) 59 (d) 67
11. 11.Which number is the odd one out: 40, 89, 73, 83? (a) 40 (b) 89 (c) 73 (d) 83
12. 12.Which number is the odd one out: 61, 96, 12, 48? (a) 61 (b) 96 (c) 12 (d) 48
13. 13.Which number is the odd one out: 36, 81, 9, 24? (a) 36 (b) 81 (c) 9 (d) 24
14. 14.Which number is the odd one out: 59, 83, 13, 99? (a) 59 (b) 83 (c) 13 (d) 99
15. 15.Which number is the odd one out: 47, 85, 23, 41? (a) 47 (b) 85 (c) 23 (d) 41
16. 16.Which number is the odd one out: 2, 33, 21, 7? (a) 2 (b) 33 (c) 21 (d) 7
17. 17.Which number is the odd one out: 77, 71, 53, 47? (a) 77 (b) 71 (c) 53 (d) 47
18. 18.Which number is the odd one out: 19, 2, 6, 23? (a) 19 (b) 2 (c) 6 (d) 23
19. 19.Which number is the odd one out: 47, 23, 46, 31? (a) 47 (b) 23 (c) 46 (d) 31
20. 20.Which number is the odd one out: 61, 12, 89, 29? (a) 61 (b) 12 (c) 89 (d) 29
21. 21.Which number is the odd one out: 89, 56, 71, 73? (a) 89 (b) 56 (c) 71 (d) 73
22. 22.Which number is the odd one out: 23, 43, 61, 62? (a) 23 (b) 43 (c) 61 (d) 62
23. 23.Which number is the odd one out: 37, 31, 41, 33? (a) 37 (b) 31 (c) 41 (d) 33
24. 24.Which number is the odd one out: 32, 16, 64, 85? (a) 32 (b) 16 (c) 64 (d) 85
25. 25.Which number is the odd one out: 76, 19, 71, 59? (a) 76 (b) 19 (c) 71 (d) 59
26. 26.Which number is the odd one out: 31, 73, 71, 46? (a) 31 (b) 73 (c) 71 (d) 46
27. 27.Which number is the odd one out: 38, 29, 83, 47? (a) 38 (b) 29 (c) 83 (d) 47
28. 28.Which number is the odd one out: 25, 29, 13, 31? (a) 25 (b) 29 (c) 13 (d) 31
29. 29.Which number is the odd one out: 14, 7, 2, 83? (a) 14 (b) 7 (c) 2 (d) 83
30. 30.Which number is the odd one out: 37, 10, 19, 5? (a) 37 (b) 10 (c) 19 (d) 5
31. 31.Which number is the odd one out: 59, 17, 99, 3? (a) 59 (b) 17 (c) 99 (d) 3
32. 32.Which number is the odd one out: 3, 14, 93, 71? (a) 3 (b) 14 (c) 93 (d) 71
33. 33.Which number is the odd one out: 23, 83, 97, 38? (a) 23 (b) 83 (c) 97 (d) 38
34. 34.Which number is the odd one out: 59, 16, 13, 17? (a) 59 (b) 16 (c) 13 (d) 17
35. 35.Which number is the odd one out: 13, 41, 36, 43? (a) 13 (b) 41 (c) 36 (d) 43
36. 36.Which number is the odd one out: 70, 42, 90, 14? (a) 70 (b) 42 (c) 90 (d) 14
37. 37.Which number is the odd one out: 85, 91, 55, 35? (a) 85 (b) 91 (c) 55 (d) 35
38. 38.Which number is the odd one out: 17, 42, 29, 11? (a) 17 (b) 42 (c) 29 (d) 11
39. 39.Which number is the odd one out: 19, 94, 74, 2? (a) 19 (b) 94 (c) 74 (d) 2
40. 40.Which number is the odd one out: 2, 43, 71, 22? (a) 2 (b) 43 (c) 71 (d) 22

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