Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 850 · 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: 32, 80, 40, 49? (a) 32 (b) 80 (c) 40 (d) 49
2. 2.Which number is the odd one out: 73, 67, 79, 18? (a) 73 (b) 67 (c) 79 (d) 18
3. 3.Which number is the odd one out: 70, 97, 43, 79? (a) 70 (b) 97 (c) 43 (d) 79
4. 4.Which number is the odd one out: 96, 26, 24, 12? (a) 96 (b) 26 (c) 24 (d) 12
5. 5.Which number is the odd one out: 3, 16, 4, 64? (a) 3 (b) 16 (c) 4 (d) 64
6. 6.Which number is the odd one out: 47, 31, 99, 11? (a) 47 (b) 31 (c) 99 (d) 11
7. 7.Which number is the odd one out: 57, 17, 83, 79? (a) 57 (b) 17 (c) 83 (d) 79
8. 8.Which number is the odd one out: 41, 79, 92, 73? (a) 41 (b) 79 (c) 92 (d) 73
9. 9.Which number is the odd one out: 93, 61, 89, 11? (a) 93 (b) 61 (c) 89 (d) 11
10. 10.Which number is the odd one out: 23, 86, 26, 58? (a) 23 (b) 86 (c) 26 (d) 58
11. 11.Which number is the odd one out: 28, 10, 65, 85? (a) 28 (b) 10 (c) 65 (d) 85
12. 12.Which number is the odd one out: 53, 47, 56, 19? (a) 53 (b) 47 (c) 56 (d) 19
13. 13.Which number is the odd one out: 81, 9, 27, 21? (a) 81 (b) 9 (c) 27 (d) 21
14. 14.Which number is the odd one out: 61, 25, 37, 17? (a) 61 (b) 25 (c) 37 (d) 17
15. 15.Which number is the odd one out: 46, 11, 73, 61? (a) 46 (b) 11 (c) 73 (d) 61
16. 16.Which number is the odd one out: 24, 72, 23, 18? (a) 24 (b) 72 (c) 23 (d) 18
17. 17.Which number is the odd one out: 64, 25, 65, 55? (a) 64 (b) 25 (c) 65 (d) 55
18. 18.Which number is the odd one out: 71, 9, 29, 59? (a) 71 (b) 9 (c) 29 (d) 59
19. 19.Which number is the odd one out: 61, 99, 3, 73? (a) 61 (b) 99 (c) 3 (d) 73
20. 20.Which number is the odd one out: 6, 53, 41, 47? (a) 6 (b) 53 (c) 41 (d) 47
21. 21.Which number is the odd one out: 20, 73, 47, 23? (a) 20 (b) 73 (c) 47 (d) 23
22. 22.Which number is the odd one out: 7, 18, 54, 87? (a) 7 (b) 18 (c) 54 (d) 87
23. 23.Which number is the odd one out: 53, 17, 81, 47? (a) 53 (b) 17 (c) 81 (d) 47
24. 24.Which number is the odd one out: 13, 75, 15, 95? (a) 13 (b) 75 (c) 15 (d) 95
25. 25.Which number is the odd one out: 80, 5, 97, 67? (a) 80 (b) 5 (c) 97 (d) 67
26. 26.Which number is the odd one out: 61, 73, 89, 8? (a) 61 (b) 73 (c) 89 (d) 8
27. 27.Which number is the odd one out: 13, 94, 47, 67? (a) 13 (b) 94 (c) 47 (d) 67
28. 28.Which number is the odd one out: 59, 19, 67, 56? (a) 59 (b) 19 (c) 67 (d) 56
29. 29.Which number is the odd one out: 41, 61, 63, 83? (a) 41 (b) 61 (c) 63 (d) 83
30. 30.Which number is the odd one out: 77, 98, 19, 71? (a) 77 (b) 98 (c) 19 (d) 71
31. 31.Which number is the odd one out: 28, 59, 71, 91? (a) 28 (b) 59 (c) 71 (d) 91
32. 32.Which number is the odd one out: 37, 90, 13, 79? (a) 37 (b) 90 (c) 13 (d) 79
33. 33.Which number is the odd one out: 60, 62, 96, 80? (a) 60 (b) 62 (c) 96 (d) 80
34. 34.Which number is the odd one out: 48, 77, 14, 21? (a) 48 (b) 77 (c) 14 (d) 21
35. 35.Which number is the odd one out: 24, 74, 88, 48? (a) 24 (b) 74 (c) 88 (d) 48
36. 36.Which number is the odd one out: 74, 67, 38, 86? (a) 74 (b) 67 (c) 38 (d) 86
37. 37.Which number is the odd one out: 19, 36, 11, 71? (a) 19 (b) 36 (c) 11 (d) 71
38. 38.Which number is the odd one out: 82, 59, 17, 13? (a) 82 (b) 59 (c) 17 (d) 13
39. 39.Which number is the odd one out: 15, 9, 65, 25? (a) 15 (b) 9 (c) 65 (d) 25
40. 40.Which number is the odd one out: 24, 44, 96, 73? (a) 24 (b) 44 (c) 96 (d) 73

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