Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 9 · 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: 70, 23, 13, 43? (a) 70 (b) 23 (c) 13 (d) 43
2. 2.Which number is the odd one out: 76, 23, 11, 73? (a) 76 (b) 23 (c) 11 (d) 73
3. 3.Which number is the odd one out: 2, 13, 70, 71? (a) 2 (b) 13 (c) 70 (d) 71
4. 4.Which number is the odd one out: 19, 63, 31, 7? (a) 19 (b) 63 (c) 31 (d) 7
5. 5.Which number is the odd one out: 23, 11, 78, 31? (a) 23 (b) 11 (c) 78 (d) 31
6. 6.Which number is the odd one out: 17, 54, 97, 47? (a) 17 (b) 54 (c) 97 (d) 47
7. 7.Which number is the odd one out: 89, 37, 36, 71? (a) 89 (b) 37 (c) 36 (d) 71
8. 8.Which number is the odd one out: 22, 96, 24, 88? (a) 22 (b) 96 (c) 24 (d) 88
9. 9.Which number is the odd one out: 51, 36, 89, 79? (a) 51 (b) 36 (c) 89 (d) 79
10. 10.Which number is the odd one out: 59, 61, 79, 72? (a) 59 (b) 61 (c) 79 (d) 72
11. 11.Which number is the odd one out: 43, 57, 41, 89? (a) 43 (b) 57 (c) 41 (d) 89
12. 12.Which number is the odd one out: 68, 61, 11, 73? (a) 68 (b) 61 (c) 11 (d) 73
13. 13.Which number is the odd one out: 28, 4, 49, 77? (a) 28 (b) 4 (c) 49 (d) 77
14. 14.Which number is the odd one out: 98, 14, 15, 35? (a) 98 (b) 14 (c) 15 (d) 35
15. 15.Which number is the odd one out: 96, 42, 98, 48? (a) 96 (b) 42 (c) 98 (d) 48
16. 16.Which number is the odd one out: 23, 3, 60, 2? (a) 23 (b) 3 (c) 60 (d) 2
17. 17.Which number is the odd one out: 89, 24, 96, 6? (a) 89 (b) 24 (c) 96 (d) 6
18. 18.Which number is the odd one out: 17, 23, 43, 8? (a) 17 (b) 23 (c) 43 (d) 8
19. 19.Which number is the odd one out: 47, 5, 55, 83? (a) 47 (b) 5 (c) 55 (d) 83
20. 20.Which number is the odd one out: 11, 59, 57, 83? (a) 11 (b) 59 (c) 57 (d) 83
21. 21.Which number is the odd one out: 53, 20, 31, 61? (a) 53 (b) 20 (c) 31 (d) 61
22. 22.Which number is the odd one out: 48, 66, 8, 65? (a) 48 (b) 66 (c) 8 (d) 65
23. 23.Which number is the odd one out: 80, 88, 30, 24? (a) 80 (b) 88 (c) 30 (d) 24
24. 24.Which number is the odd one out: 88, 24, 86, 12? (a) 88 (b) 24 (c) 86 (d) 12
25. 25.Which number is the odd one out: 12, 19, 71, 61? (a) 12 (b) 19 (c) 71 (d) 61
26. 26.Which number is the odd one out: 63, 21, 4, 9? (a) 63 (b) 21 (c) 4 (d) 9
27. 27.Which number is the odd one out: 50, 10, 85, 89? (a) 50 (b) 10 (c) 85 (d) 89
28. 28.Which number is the odd one out: 89, 39, 53, 37? (a) 89 (b) 39 (c) 53 (d) 37
29. 29.Which number is the odd one out: 41, 66, 13, 67? (a) 41 (b) 66 (c) 13 (d) 67
30. 30.Which number is the odd one out: 51, 41, 72, 59? (a) 51 (b) 41 (c) 72 (d) 59
31. 31.Which number is the odd one out: 56, 7, 13, 43? (a) 56 (b) 7 (c) 13 (d) 43
32. 32.Which number is the odd one out: 16, 13, 97, 17? (a) 16 (b) 13 (c) 97 (d) 17
33. 33.Which number is the odd one out: 84, 43, 79, 7? (a) 84 (b) 43 (c) 79 (d) 7
34. 34.Which number is the odd one out: 43, 13, 88, 23? (a) 43 (b) 13 (c) 88 (d) 23
35. 35.Which number is the odd one out: 32, 13, 88, 8? (a) 32 (b) 13 (c) 88 (d) 8
36. 36.Which number is the odd one out: 53, 5, 65, 84? (a) 53 (b) 5 (c) 65 (d) 84
37. 37.Which number is the odd one out: 42, 59, 17, 31? (a) 42 (b) 59 (c) 17 (d) 31
38. 38.Which number is the odd one out: 19, 83, 4, 43? (a) 19 (b) 83 (c) 4 (d) 43
39. 39.Which number is the odd one out: 70, 2, 7, 73? (a) 70 (b) 2 (c) 7 (d) 73
40. 40.Which number is the odd one out: 71, 61, 80, 2? (a) 71 (b) 61 (c) 80 (d) 2

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