Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 263 · 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: 40, 64, 81, 80? (a) 40 (b) 64 (c) 81 (d) 80
2. 2.Which number is the odd one out: 59, 65, 53, 29? (a) 59 (b) 65 (c) 53 (d) 29
3. 3.Which number is the odd one out: 53, 71, 27, 37? (a) 53 (b) 71 (c) 27 (d) 37
4. 4.Which number is the odd one out: 95, 88, 8, 40? (a) 95 (b) 88 (c) 8 (d) 40
5. 5.Which number is the odd one out: 8, 78, 24, 68? (a) 8 (b) 78 (c) 24 (d) 68
6. 6.Which number is the odd one out: 24, 73, 96, 8? (a) 24 (b) 73 (c) 96 (d) 8
7. 7.Which number is the odd one out: 17, 79, 27, 59? (a) 17 (b) 79 (c) 27 (d) 59
8. 8.Which number is the odd one out: 28, 84, 38, 42? (a) 28 (b) 84 (c) 38 (d) 42
9. 9.Which number is the odd one out: 98, 81, 9, 49? (a) 98 (b) 81 (c) 9 (d) 49
10. 10.Which number is the odd one out: 27, 9, 81, 92? (a) 27 (b) 9 (c) 81 (d) 92
11. 11.Which number is the odd one out: 83, 75, 13, 23? (a) 83 (b) 75 (c) 13 (d) 23
12. 12.Which number is the odd one out: 50, 47, 41, 23? (a) 50 (b) 47 (c) 41 (d) 23
13. 13.Which number is the odd one out: 11, 65, 83, 31? (a) 11 (b) 65 (c) 83 (d) 31
14. 14.Which number is the odd one out: 17, 29, 2, 22? (a) 17 (b) 29 (c) 2 (d) 22
15. 15.Which number is the odd one out: 43, 17, 58, 2? (a) 43 (b) 17 (c) 58 (d) 2
16. 16.Which number is the odd one out: 17, 59, 79, 94? (a) 17 (b) 59 (c) 79 (d) 94
17. 17.Which number is the odd one out: 83, 97, 37, 63? (a) 83 (b) 97 (c) 37 (d) 63
18. 18.Which number is the odd one out: 41, 37, 16, 17? (a) 41 (b) 37 (c) 16 (d) 17
19. 19.Which number is the odd one out: 3, 83, 18, 11? (a) 3 (b) 83 (c) 18 (d) 11
20. 20.Which number is the odd one out: 21, 79, 23, 43? (a) 21 (b) 79 (c) 23 (d) 43
21. 21.Which number is the odd one out: 71, 72, 73, 53? (a) 71 (b) 72 (c) 73 (d) 53
22. 22.Which number is the odd one out: 81, 30, 45, 9? (a) 81 (b) 30 (c) 45 (d) 9
23. 23.Which number is the odd one out: 67, 48, 89, 23? (a) 67 (b) 48 (c) 89 (d) 23
24. 24.Which number is the odd one out: 5, 29, 55, 61? (a) 5 (b) 29 (c) 55 (d) 61
25. 25.Which number is the odd one out: 89, 16, 83, 23? (a) 89 (b) 16 (c) 83 (d) 23
26. 26.Which number is the odd one out: 55, 65, 86, 95? (a) 55 (b) 65 (c) 86 (d) 95
27. 27.Which number is the odd one out: 7, 64, 4, 16? (a) 7 (b) 64 (c) 4 (d) 16
28. 28.Which number is the odd one out: 77, 21, 91, 6? (a) 77 (b) 21 (c) 91 (d) 6
29. 29.Which number is the odd one out: 83, 67, 58, 19? (a) 83 (b) 67 (c) 58 (d) 19
30. 30.Which number is the odd one out: 23, 43, 37, 84? (a) 23 (b) 43 (c) 37 (d) 84
31. 31.Which number is the odd one out: 72, 61, 18, 48? (a) 72 (b) 61 (c) 18 (d) 48
32. 32.Which number is the odd one out: 72, 73, 53, 93? (a) 72 (b) 73 (c) 53 (d) 93
33. 33.Which number is the odd one out: 99, 54, 18, 3? (a) 99 (b) 54 (c) 18 (d) 3
34. 34.Which number is the odd one out: 5, 86, 46, 34? (a) 5 (b) 86 (c) 46 (d) 34
35. 35.Which number is the odd one out: 16, 2, 64, 4? (a) 16 (b) 2 (c) 64 (d) 4
36. 36.Which number is the odd one out: 12, 76, 96, 48? (a) 12 (b) 76 (c) 96 (d) 48
37. 37.Which number is the odd one out: 50, 13, 85, 43? (a) 50 (b) 13 (c) 85 (d) 43
38. 38.Which number is the odd one out: 40, 29, 47, 19? (a) 40 (b) 29 (c) 47 (d) 19
39. 39.Which number is the odd one out: 93, 27, 64, 81? (a) 93 (b) 27 (c) 64 (d) 81
40. 40.Which number is the odd one out: 83, 13, 67, 24? (a) 83 (b) 13 (c) 67 (d) 24

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