Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 343 · 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: 8, 52, 80, 10? (a) 8 (b) 52 (c) 80 (d) 10
2. 2.Which number is the odd one out: 18, 41, 37, 83? (a) 18 (b) 41 (c) 37 (d) 83
3. 3.Which number is the odd one out: 55, 85, 27, 15? (a) 55 (b) 85 (c) 27 (d) 15
4. 4.Which number is the odd one out: 25, 67, 61, 73? (a) 25 (b) 67 (c) 61 (d) 73
5. 5.Which number is the odd one out: 15, 31, 29, 13? (a) 15 (b) 31 (c) 29 (d) 13
6. 6.Which number is the odd one out: 71, 19, 47, 15? (a) 71 (b) 19 (c) 47 (d) 15
7. 7.Which number is the odd one out: 9, 19, 29, 53? (a) 9 (b) 19 (c) 29 (d) 53
8. 8.Which number is the odd one out: 38, 59, 43, 23? (a) 38 (b) 59 (c) 43 (d) 23
9. 9.Which number is the odd one out: 31, 13, 52, 83? (a) 31 (b) 13 (c) 52 (d) 83
10. 10.Which number is the odd one out: 70, 53, 23, 5? (a) 70 (b) 53 (c) 23 (d) 5
11. 11.Which number is the odd one out: 99, 48, 66, 24? (a) 99 (b) 48 (c) 66 (d) 24
12. 12.Which number is the odd one out: 33, 79, 13, 12? (a) 33 (b) 79 (c) 13 (d) 12
13. 13.Which number is the odd one out: 30, 47, 87, 11? (a) 30 (b) 47 (c) 87 (d) 11
14. 14.Which number is the odd one out: 31, 88, 11, 53? (a) 31 (b) 88 (c) 11 (d) 53
15. 15.Which number is the odd one out: 96, 88, 24, 48? (a) 96 (b) 88 (c) 24 (d) 48
16. 16.Which number is the odd one out: 64, 30, 16, 96? (a) 64 (b) 30 (c) 16 (d) 96
17. 17.Which number is the odd one out: 96, 56, 18, 54? (a) 96 (b) 56 (c) 18 (d) 54
18. 18.Which number is the odd one out: 97, 3, 13, 42? (a) 97 (b) 3 (c) 13 (d) 42
19. 19.Which number is the odd one out: 31, 65, 79, 23? (a) 31 (b) 65 (c) 79 (d) 23
20. 20.Which number is the odd one out: 23, 75, 13, 67? (a) 23 (b) 75 (c) 13 (d) 67
21. 21.Which number is the odd one out: 42, 18, 49, 54? (a) 42 (b) 18 (c) 49 (d) 54
22. 22.Which number is the odd one out: 82, 47, 11, 2? (a) 82 (b) 47 (c) 11 (d) 2
23. 23.Which number is the odd one out: 80, 4, 81, 9? (a) 80 (b) 4 (c) 81 (d) 9
24. 24.Which number is the odd one out: 47, 83, 97, 84? (a) 47 (b) 83 (c) 97 (d) 84
25. 25.Which number is the odd one out: 73, 53, 59, 35? (a) 73 (b) 53 (c) 59 (d) 35
26. 26.Which number is the odd one out: 48, 96, 75, 6? (a) 48 (b) 96 (c) 75 (d) 6
27. 27.Which number is the odd one out: 42, 30, 14, 98? (a) 42 (b) 30 (c) 14 (d) 98
28. 28.Which number is the odd one out: 26, 53, 59, 89? (a) 26 (b) 53 (c) 59 (d) 89
29. 29.Which number is the odd one out: 93, 5, 51, 33? (a) 93 (b) 5 (c) 51 (d) 33
30. 30.Which number is the odd one out: 53, 60, 17, 97? (a) 53 (b) 60 (c) 17 (d) 97
31. 31.Which number is the odd one out: 79, 37, 16, 29? (a) 79 (b) 37 (c) 16 (d) 29
32. 32.Which number is the odd one out: 17, 53, 59, 50? (a) 17 (b) 53 (c) 59 (d) 50
33. 33.Which number is the odd one out: 40, 43, 67, 23? (a) 40 (b) 43 (c) 67 (d) 23
34. 34.Which number is the odd one out: 70, 8, 40, 32? (a) 70 (b) 8 (c) 40 (d) 32
35. 35.Which number is the odd one out: 90, 12, 27, 60? (a) 90 (b) 12 (c) 27 (d) 60
36. 36.Which number is the odd one out: 39, 67, 3, 19? (a) 39 (b) 67 (c) 3 (d) 19
37. 37.Which number is the odd one out: 13, 67, 5, 40? (a) 13 (b) 67 (c) 5 (d) 40
38. 38.Which number is the odd one out: 42, 29, 79, 43? (a) 42 (b) 29 (c) 79 (d) 43
39. 39.Which number is the odd one out: 22, 48, 6, 96? (a) 22 (b) 48 (c) 6 (d) 96
40. 40.Which number is the odd one out: 61, 62, 19, 43? (a) 61 (b) 62 (c) 19 (d) 43

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