Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 715 · 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: 67, 21, 17, 71? (a) 67 (b) 21 (c) 17 (d) 71
2. 2.Which number is the odd one out: 41, 19, 23, 30? (a) 41 (b) 19 (c) 23 (d) 30
3. 3.Which number is the odd one out: 47, 89, 9, 79? (a) 47 (b) 89 (c) 9 (d) 79
4. 4.Which number is the odd one out: 31, 83, 63, 19? (a) 31 (b) 83 (c) 63 (d) 19
5. 5.Which number is the odd one out: 48, 97, 29, 47? (a) 48 (b) 97 (c) 29 (d) 47
6. 6.Which number is the odd one out: 13, 7, 83, 14? (a) 13 (b) 7 (c) 83 (d) 14
7. 7.Which number is the odd one out: 13, 23, 26, 67? (a) 13 (b) 23 (c) 26 (d) 67
8. 8.Which number is the odd one out: 59, 67, 17, 77? (a) 59 (b) 67 (c) 17 (d) 77
9. 9.Which number is the odd one out: 99, 78, 24, 48? (a) 99 (b) 78 (c) 24 (d) 48
10. 10.Which number is the odd one out: 88, 48, 76, 24? (a) 88 (b) 48 (c) 76 (d) 24
11. 11.Which number is the odd one out: 23, 74, 29, 11? (a) 23 (b) 74 (c) 29 (d) 11
12. 12.Which number is the odd one out: 67, 29, 24, 11? (a) 67 (b) 29 (c) 24 (d) 11
13. 13.Which number is the odd one out: 71, 61, 31, 94? (a) 71 (b) 61 (c) 31 (d) 94
14. 14.Which number is the odd one out: 84, 56, 32, 48? (a) 84 (b) 56 (c) 32 (d) 48
15. 15.Which number is the odd one out: 23, 98, 70, 35? (a) 23 (b) 98 (c) 70 (d) 35
16. 16.Which number is the odd one out: 50, 17, 71, 73? (a) 50 (b) 17 (c) 71 (d) 73
17. 17.Which number is the odd one out: 99, 41, 81, 9? (a) 99 (b) 41 (c) 81 (d) 9
18. 18.Which number is the odd one out: 12, 90, 25, 36? (a) 12 (b) 90 (c) 25 (d) 36
19. 19.Which number is the odd one out: 48, 83, 37, 43? (a) 48 (b) 83 (c) 37 (d) 43
20. 20.Which number is the odd one out: 79, 73, 49, 17? (a) 79 (b) 73 (c) 49 (d) 17
21. 21.Which number is the odd one out: 43, 41, 44, 71? (a) 43 (b) 41 (c) 44 (d) 71
22. 22.Which number is the odd one out: 9, 95, 45, 81? (a) 9 (b) 95 (c) 45 (d) 81
23. 23.Which number is the odd one out: 89, 31, 59, 75? (a) 89 (b) 31 (c) 59 (d) 75
24. 24.Which number is the odd one out: 20, 83, 29, 43? (a) 20 (b) 83 (c) 29 (d) 43
25. 25.Which number is the odd one out: 83, 17, 29, 38? (a) 83 (b) 17 (c) 29 (d) 38
26. 26.Which number is the odd one out: 89, 24, 79, 73? (a) 89 (b) 24 (c) 79 (d) 73
27. 27.Which number is the odd one out: 42, 41, 73, 19? (a) 42 (b) 41 (c) 73 (d) 19
28. 28.Which number is the odd one out: 5, 70, 59, 17? (a) 5 (b) 70 (c) 59 (d) 17
29. 29.Which number is the odd one out: 99, 58, 16, 64? (a) 99 (b) 58 (c) 16 (d) 64
30. 30.Which number is the odd one out: 90, 18, 54, 15? (a) 90 (b) 18 (c) 54 (d) 15
31. 31.Which number is the odd one out: 31, 18, 71, 73? (a) 31 (b) 18 (c) 71 (d) 73
32. 32.Which number is the odd one out: 23, 85, 59, 89? (a) 23 (b) 85 (c) 59 (d) 89
33. 33.Which number is the odd one out: 46, 5, 65, 71? (a) 46 (b) 5 (c) 65 (d) 71
34. 34.Which number is the odd one out: 89, 37, 68, 43? (a) 89 (b) 37 (c) 68 (d) 43
35. 35.Which number is the odd one out: 71, 41, 64, 19? (a) 71 (b) 41 (c) 64 (d) 19
36. 36.Which number is the odd one out: 41, 44, 67, 19? (a) 41 (b) 44 (c) 67 (d) 19
37. 37.Which number is the odd one out: 41, 97, 45, 53? (a) 41 (b) 97 (c) 45 (d) 53
38. 38.Which number is the odd one out: 53, 61, 3, 33? (a) 53 (b) 61 (c) 3 (d) 33
39. 39.Which number is the odd one out: 97, 41, 61, 42? (a) 97 (b) 41 (c) 61 (d) 42
40. 40.Which number is the odd one out: 97, 44, 17, 89? (a) 97 (b) 44 (c) 17 (d) 89

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