Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 424 · 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: 23, 96, 19, 61? (a) 23 (b) 96 (c) 19 (d) 61
2. 2.Which number is the odd one out: 41, 51, 83, 59? (a) 41 (b) 51 (c) 83 (d) 59
3. 3.Which number is the odd one out: 26, 59, 37, 31? (a) 26 (b) 59 (c) 37 (d) 31
4. 4.Which number is the odd one out: 14, 31, 23, 61? (a) 14 (b) 31 (c) 23 (d) 61
5. 5.Which number is the odd one out: 48, 85, 66, 24? (a) 48 (b) 85 (c) 66 (d) 24
6. 6.Which number is the odd one out: 37, 59, 73, 6? (a) 37 (b) 59 (c) 73 (d) 6
7. 7.Which number is the odd one out: 59, 17, 11, 99? (a) 59 (b) 17 (c) 11 (d) 99
8. 8.Which number is the odd one out: 22, 3, 19, 93? (a) 22 (b) 3 (c) 19 (d) 93
9. 9.Which number is the odd one out: 37, 62, 2, 89? (a) 37 (b) 62 (c) 2 (d) 89
10. 10.Which number is the odd one out: 64, 93, 39, 69? (a) 64 (b) 93 (c) 39 (d) 69
11. 11.Which number is the odd one out: 59, 71, 89, 36? (a) 59 (b) 71 (c) 89 (d) 36
12. 12.Which number is the odd one out: 37, 47, 42, 13? (a) 37 (b) 47 (c) 42 (d) 13
13. 13.Which number is the odd one out: 61, 89, 2, 44? (a) 61 (b) 89 (c) 2 (d) 44
14. 14.Which number is the odd one out: 73, 53, 70, 29? (a) 73 (b) 53 (c) 70 (d) 29
15. 15.Which number is the odd one out: 32, 95, 8, 40? (a) 32 (b) 95 (c) 8 (d) 40
16. 16.Which number is the odd one out: 15, 24, 65, 55? (a) 15 (b) 24 (c) 65 (d) 55
17. 17.Which number is the odd one out: 97, 48, 61, 31? (a) 97 (b) 48 (c) 61 (d) 31
18. 18.Which number is the odd one out: 98, 7, 67, 2? (a) 98 (b) 7 (c) 67 (d) 2
19. 19.Which number is the odd one out: 16, 64, 85, 4? (a) 16 (b) 64 (c) 85 (d) 4
20. 20.Which number is the odd one out: 29, 45, 83, 67? (a) 29 (b) 45 (c) 83 (d) 67
21. 21.Which number is the odd one out: 89, 43, 79, 49? (a) 89 (b) 43 (c) 79 (d) 49
22. 22.Which number is the odd one out: 21, 53, 17, 3? (a) 21 (b) 53 (c) 17 (d) 3
23. 23.Which number is the odd one out: 59, 79, 63, 83? (a) 59 (b) 79 (c) 63 (d) 83
24. 24.Which number is the odd one out: 55, 57, 80, 40? (a) 55 (b) 57 (c) 80 (d) 40
25. 25.Which number is the odd one out: 64, 68, 4, 16? (a) 64 (b) 68 (c) 4 (d) 16
26. 26.Which number is the odd one out: 67, 48, 96, 8? (a) 67 (b) 48 (c) 96 (d) 8
27. 27.Which number is the odd one out: 23, 75, 41, 89? (a) 23 (b) 75 (c) 41 (d) 89
28. 28.Which number is the odd one out: 99, 9, 7, 81? (a) 99 (b) 9 (c) 7 (d) 81
29. 29.Which number is the odd one out: 6, 95, 5, 47? (a) 6 (b) 95 (c) 5 (d) 47
30. 30.Which number is the odd one out: 48, 96, 21, 42? (a) 48 (b) 96 (c) 21 (d) 42
31. 31.Which number is the odd one out: 79, 23, 99, 43? (a) 79 (b) 23 (c) 99 (d) 43
32. 32.Which number is the odd one out: 12, 60, 6, 50? (a) 12 (b) 60 (c) 6 (d) 50
33. 33.Which number is the odd one out: 9, 81, 40, 4? (a) 9 (b) 81 (c) 40 (d) 4
34. 34.Which number is the odd one out: 67, 72, 29, 2? (a) 67 (b) 72 (c) 29 (d) 2
35. 35.Which number is the odd one out: 41, 19, 84, 73? (a) 41 (b) 19 (c) 84 (d) 73
36. 36.Which number is the odd one out: 19, 79, 85, 90? (a) 19 (b) 79 (c) 85 (d) 90
37. 37.Which number is the odd one out: 70, 13, 17, 11? (a) 70 (b) 13 (c) 17 (d) 11
38. 38.Which number is the odd one out: 73, 17, 3, 54? (a) 73 (b) 17 (c) 3 (d) 54
39. 39.Which number is the odd one out: 89, 46, 97, 73? (a) 89 (b) 46 (c) 97 (d) 73
40. 40.Which number is the odd one out: 70, 61, 67, 59? (a) 70 (b) 61 (c) 67 (d) 59

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