Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 454 · 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: 18, 86, 54, 43? (a) 18 (b) 86 (c) 54 (d) 43
2. 2.Which number is the odd one out: 12, 51, 13, 23? (a) 12 (b) 51 (c) 13 (d) 23
3. 3.Which number is the odd one out: 24, 37, 17, 61? (a) 24 (b) 37 (c) 17 (d) 61
4. 4.Which number is the odd one out: 89, 25, 17, 19? (a) 89 (b) 25 (c) 17 (d) 19
5. 5.Which number is the odd one out: 18, 23, 72, 96? (a) 18 (b) 23 (c) 72 (d) 96
6. 6.Which number is the odd one out: 19, 36, 97, 43? (a) 19 (b) 36 (c) 97 (d) 43
7. 7.Which number is the odd one out: 46, 61, 41, 73? (a) 46 (b) 61 (c) 41 (d) 73
8. 8.Which number is the odd one out: 18, 97, 41, 37? (a) 18 (b) 97 (c) 41 (d) 37
9. 9.Which number is the odd one out: 57, 90, 18, 45? (a) 57 (b) 90 (c) 18 (d) 45
10. 10.Which number is the odd one out: 89, 41, 2, 32? (a) 89 (b) 41 (c) 2 (d) 32
11. 11.Which number is the odd one out: 43, 67, 89, 12? (a) 43 (b) 67 (c) 89 (d) 12
12. 12.Which number is the odd one out: 32, 92, 79, 8? (a) 32 (b) 92 (c) 79 (d) 8
13. 13.Which number is the odd one out: 81, 71, 89, 61? (a) 81 (b) 71 (c) 89 (d) 61
14. 14.Which number is the odd one out: 61, 47, 29, 38? (a) 61 (b) 47 (c) 29 (d) 38
15. 15.Which number is the odd one out: 83, 89, 53, 44? (a) 83 (b) 89 (c) 53 (d) 44
16. 16.Which number is the odd one out: 56, 77, 43, 17? (a) 56 (b) 77 (c) 43 (d) 17
17. 17.Which number is the odd one out: 96, 29, 88, 24? (a) 96 (b) 29 (c) 88 (d) 24
18. 18.Which number is the odd one out: 41, 59, 54, 89? (a) 41 (b) 59 (c) 54 (d) 89
19. 19.Which number is the odd one out: 71, 44, 59, 83? (a) 71 (b) 44 (c) 59 (d) 83
20. 20.Which number is the odd one out: 20, 31, 73, 71? (a) 20 (b) 31 (c) 73 (d) 71
21. 21.Which number is the odd one out: 38, 43, 97, 89? (a) 38 (b) 43 (c) 97 (d) 89
22. 22.Which number is the odd one out: 67, 29, 28, 89? (a) 67 (b) 29 (c) 28 (d) 89
23. 23.Which number is the odd one out: 99, 63, 27, 7? (a) 99 (b) 63 (c) 27 (d) 7
24. 24.Which number is the odd one out: 59, 5, 65, 37? (a) 59 (b) 5 (c) 65 (d) 37
25. 25.Which number is the odd one out: 60, 61, 43, 5? (a) 60 (b) 61 (c) 43 (d) 5
26. 26.Which number is the odd one out: 95, 55, 99, 85? (a) 95 (b) 55 (c) 99 (d) 85
27. 27.Which number is the odd one out: 83, 17, 20, 89? (a) 83 (b) 17 (c) 20 (d) 89
28. 28.Which number is the odd one out: 4, 64, 93, 16? (a) 4 (b) 64 (c) 93 (d) 16
29. 29.Which number is the odd one out: 97, 75, 67, 83? (a) 97 (b) 75 (c) 67 (d) 83
30. 30.Which number is the odd one out: 97, 75, 37, 79? (a) 97 (b) 75 (c) 37 (d) 79
31. 31.Which number is the odd one out: 29, 19, 75, 3? (a) 29 (b) 19 (c) 75 (d) 3
32. 32.Which number is the odd one out: 99, 27, 18, 78? (a) 99 (b) 27 (c) 18 (d) 78
33. 33.Which number is the odd one out: 93, 24, 66, 48? (a) 93 (b) 24 (c) 66 (d) 48
34. 34.Which number is the odd one out: 17, 84, 11, 43? (a) 17 (b) 84 (c) 11 (d) 43
35. 35.Which number is the odd one out: 97, 49, 67, 11? (a) 97 (b) 49 (c) 67 (d) 11
36. 36.Which number is the odd one out: 47, 42, 19, 31? (a) 47 (b) 42 (c) 19 (d) 31
37. 37.Which number is the odd one out: 59, 61, 25, 97? (a) 59 (b) 61 (c) 25 (d) 97
38. 38.Which number is the odd one out: 89, 33, 31, 83? (a) 89 (b) 33 (c) 31 (d) 83
39. 39.Which number is the odd one out: 22, 2, 17, 31? (a) 22 (b) 2 (c) 17 (d) 31
40. 40.Which number is the odd one out: 59, 58, 31, 53? (a) 59 (b) 58 (c) 31 (d) 53

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