Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 427 · 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: 19, 21, 29, 7? (a) 19 (b) 21 (c) 29 (d) 7
2. 2.Which number is the odd one out: 92, 24, 8, 78? (a) 92 (b) 24 (c) 8 (d) 78
3. 3.Which number is the odd one out: 78, 61, 23, 31? (a) 78 (b) 61 (c) 23 (d) 31
4. 4.Which number is the odd one out: 45, 67, 5, 23? (a) 45 (b) 67 (c) 5 (d) 23
5. 5.Which number is the odd one out: 48, 50, 75, 65? (a) 48 (b) 50 (c) 75 (d) 65
6. 6.Which number is the odd one out: 48, 96, 78, 55? (a) 48 (b) 96 (c) 78 (d) 55
7. 7.Which number is the odd one out: 71, 3, 7, 42? (a) 71 (b) 3 (c) 7 (d) 42
8. 8.Which number is the odd one out: 46, 8, 80, 75? (a) 46 (b) 8 (c) 80 (d) 75
9. 9.Which number is the odd one out: 59, 29, 17, 30? (a) 59 (b) 29 (c) 17 (d) 30
10. 10.Which number is the odd one out: 97, 13, 83, 33? (a) 97 (b) 13 (c) 83 (d) 33
11. 11.Which number is the odd one out: 31, 23, 83, 39? (a) 31 (b) 23 (c) 83 (d) 39
12. 12.Which number is the odd one out: 73, 43, 38, 37? (a) 73 (b) 43 (c) 38 (d) 37
13. 13.Which number is the odd one out: 3, 28, 32, 56? (a) 3 (b) 28 (c) 32 (d) 56
14. 14.Which number is the odd one out: 31, 74, 83, 23? (a) 31 (b) 74 (c) 83 (d) 23
15. 15.Which number is the odd one out: 13, 94, 29, 23? (a) 13 (b) 94 (c) 29 (d) 23
16. 16.Which number is the odd one out: 91, 14, 98, 27? (a) 91 (b) 14 (c) 98 (d) 27
17. 17.Which number is the odd one out: 24, 82, 78, 48? (a) 24 (b) 82 (c) 78 (d) 48
18. 18.Which number is the odd one out: 56, 13, 19, 59? (a) 56 (b) 13 (c) 19 (d) 59
19. 19.Which number is the odd one out: 37, 12, 19, 59? (a) 37 (b) 12 (c) 19 (d) 59
20. 20.Which number is the odd one out: 71, 23, 31, 64? (a) 71 (b) 23 (c) 31 (d) 64
21. 21.Which number is the odd one out: 85, 36, 65, 95? (a) 85 (b) 36 (c) 65 (d) 95
22. 22.Which number is the odd one out: 48, 89, 96, 12? (a) 48 (b) 89 (c) 96 (d) 12
23. 23.Which number is the odd one out: 33, 27, 99, 92? (a) 33 (b) 27 (c) 99 (d) 92
24. 24.Which number is the odd one out: 12, 30, 79, 60? (a) 12 (b) 30 (c) 79 (d) 60
25. 25.Which number is the odd one out: 29, 13, 83, 94? (a) 29 (b) 13 (c) 83 (d) 94
26. 26.Which number is the odd one out: 4, 91, 16, 64? (a) 4 (b) 91 (c) 16 (d) 64
27. 27.Which number is the odd one out: 24, 88, 48, 2? (a) 24 (b) 88 (c) 48 (d) 2
28. 28.Which number is the odd one out: 25, 53, 67, 43? (a) 25 (b) 53 (c) 67 (d) 43
29. 29.Which number is the odd one out: 40, 98, 8, 80? (a) 40 (b) 98 (c) 8 (d) 80
30. 30.Which number is the odd one out: 76, 47, 79, 73? (a) 76 (b) 47 (c) 79 (d) 73
31. 31.Which number is the odd one out: 31, 26, 83, 79? (a) 31 (b) 26 (c) 83 (d) 79
32. 32.Which number is the odd one out: 13, 17, 14, 2? (a) 13 (b) 17 (c) 14 (d) 2
33. 33.Which number is the odd one out: 99, 45, 94, 15? (a) 99 (b) 45 (c) 94 (d) 15
34. 34.Which number is the odd one out: 97, 41, 22, 17? (a) 97 (b) 41 (c) 22 (d) 17
35. 35.Which number is the odd one out: 90, 11, 3, 31? (a) 90 (b) 11 (c) 3 (d) 31
36. 36.Which number is the odd one out: 33, 51, 85, 15? (a) 33 (b) 51 (c) 85 (d) 15
37. 37.Which number is the odd one out: 79, 17, 85, 31? (a) 79 (b) 17 (c) 85 (d) 31
38. 38.Which number is the odd one out: 33, 55, 12, 95? (a) 33 (b) 55 (c) 12 (d) 95
39. 39.Which number is the odd one out: 8, 24, 77, 48? (a) 8 (b) 24 (c) 77 (d) 48
40. 40.Which number is the odd one out: 84, 88, 98, 42? (a) 84 (b) 88 (c) 98 (d) 42

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