Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 714 · 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: 21, 10, 70, 55? (a) 21 (b) 10 (c) 70 (d) 55
2. 2.Which number is the odd one out: 3, 36, 97, 41? (a) 3 (b) 36 (c) 97 (d) 41
3. 3.Which number is the odd one out: 17, 62, 13, 47? (a) 17 (b) 62 (c) 13 (d) 47
4. 4.Which number is the odd one out: 64, 16, 88, 58? (a) 64 (b) 16 (c) 88 (d) 58
5. 5.Which number is the odd one out: 12, 9, 27, 36? (a) 12 (b) 9 (c) 27 (d) 36
6. 6.Which number is the odd one out: 39, 71, 79, 83? (a) 39 (b) 71 (c) 79 (d) 83
7. 7.Which number is the odd one out: 20, 83, 11, 73? (a) 20 (b) 83 (c) 11 (d) 73
8. 8.Which number is the odd one out: 13, 59, 70, 29? (a) 13 (b) 59 (c) 70 (d) 29
9. 9.Which number is the odd one out: 17, 53, 42, 31? (a) 17 (b) 53 (c) 42 (d) 31
10. 10.Which number is the odd one out: 98, 77, 79, 13? (a) 98 (b) 77 (c) 79 (d) 13
11. 11.Which number is the odd one out: 48, 96, 14, 88? (a) 48 (b) 96 (c) 14 (d) 88
12. 12.Which number is the odd one out: 55, 85, 95, 13? (a) 55 (b) 85 (c) 95 (d) 13
13. 13.Which number is the odd one out: 88, 80, 40, 14? (a) 88 (b) 80 (c) 40 (d) 14
14. 14.Which number is the odd one out: 20, 79, 31, 2? (a) 20 (b) 79 (c) 31 (d) 2
15. 15.Which number is the odd one out: 67, 47, 24, 37? (a) 67 (b) 47 (c) 24 (d) 37
16. 16.Which number is the odd one out: 17, 75, 67, 71? (a) 17 (b) 75 (c) 67 (d) 71
17. 17.Which number is the odd one out: 97, 17, 45, 71? (a) 97 (b) 17 (c) 45 (d) 71
18. 18.Which number is the odd one out: 15, 75, 67, 55? (a) 15 (b) 75 (c) 67 (d) 55
19. 19.Which number is the odd one out: 43, 96, 89, 13? (a) 43 (b) 96 (c) 89 (d) 13
20. 20.Which number is the odd one out: 16, 29, 4, 64? (a) 16 (b) 29 (c) 4 (d) 64
21. 21.Which number is the odd one out: 3, 53, 99, 11? (a) 3 (b) 53 (c) 99 (d) 11
22. 22.Which number is the odd one out: 32, 40, 75, 8? (a) 32 (b) 40 (c) 75 (d) 8
23. 23.Which number is the odd one out: 2, 23, 83, 18? (a) 2 (b) 23 (c) 83 (d) 18
24. 24.Which number is the odd one out: 37, 2, 50, 83? (a) 37 (b) 2 (c) 50 (d) 83
25. 25.Which number is the odd one out: 59, 56, 2, 61? (a) 59 (b) 56 (c) 2 (d) 61
26. 26.Which number is the odd one out: 26, 53, 67, 61? (a) 26 (b) 53 (c) 67 (d) 61
27. 27.Which number is the odd one out: 40, 16, 80, 4? (a) 40 (b) 16 (c) 80 (d) 4
28. 28.Which number is the odd one out: 36, 4, 78, 18? (a) 36 (b) 4 (c) 78 (d) 18
29. 29.Which number is the odd one out: 43, 31, 67, 94? (a) 43 (b) 31 (c) 67 (d) 94
30. 30.Which number is the odd one out: 6, 25, 51, 30? (a) 6 (b) 25 (c) 51 (d) 30
31. 31.Which number is the odd one out: 23, 47, 41, 96? (a) 23 (b) 47 (c) 41 (d) 96
32. 32.Which number is the odd one out: 71, 98, 61, 43? (a) 71 (b) 98 (c) 61 (d) 43
33. 33.Which number is the odd one out: 60, 32, 96, 40? (a) 60 (b) 32 (c) 96 (d) 40
34. 34.Which number is the odd one out: 66, 53, 61, 79? (a) 66 (b) 53 (c) 61 (d) 79
35. 35.Which number is the odd one out: 97, 73, 41, 46? (a) 97 (b) 73 (c) 41 (d) 46
36. 36.Which number is the odd one out: 18, 66, 51, 54? (a) 18 (b) 66 (c) 51 (d) 54
37. 37.Which number is the odd one out: 89, 88, 59, 11? (a) 89 (b) 88 (c) 59 (d) 11
38. 38.Which number is the odd one out: 8, 88, 74, 76? (a) 8 (b) 88 (c) 74 (d) 76
39. 39.Which number is the odd one out: 23, 89, 84, 53? (a) 23 (b) 89 (c) 84 (d) 53
40. 40.Which number is the odd one out: 11, 59, 42, 7? (a) 11 (b) 59 (c) 42 (d) 7

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