Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 564 · 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: 90, 18, 21, 45? (a) 90 (b) 18 (c) 21 (d) 45
2. 2.Which number is the odd one out: 16, 64, 56, 7? (a) 16 (b) 64 (c) 56 (d) 7
3. 3.Which number is the odd one out: 25, 67, 23, 89? (a) 25 (b) 67 (c) 23 (d) 89
4. 4.Which number is the odd one out: 61, 19, 35, 79? (a) 61 (b) 19 (c) 35 (d) 79
5. 5.Which number is the odd one out: 61, 47, 31, 9? (a) 61 (b) 47 (c) 31 (d) 9
6. 6.Which number is the odd one out: 57, 29, 23, 83? (a) 57 (b) 29 (c) 23 (d) 83
7. 7.Which number is the odd one out: 90, 60, 54, 16? (a) 90 (b) 60 (c) 54 (d) 16
8. 8.Which number is the odd one out: 68, 6, 54, 18? (a) 68 (b) 6 (c) 54 (d) 18
9. 9.Which number is the odd one out: 19, 73, 86, 13? (a) 19 (b) 73 (c) 86 (d) 13
10. 10.Which number is the odd one out: 19, 60, 3, 43? (a) 19 (b) 60 (c) 3 (d) 43
11. 11.Which number is the odd one out: 9, 55, 15, 65? (a) 9 (b) 55 (c) 15 (d) 65
12. 12.Which number is the odd one out: 73, 69, 11, 31? (a) 73 (b) 69 (c) 11 (d) 31
13. 13.Which number is the odd one out: 28, 97, 43, 37? (a) 28 (b) 97 (c) 43 (d) 37
14. 14.Which number is the odd one out: 29, 27, 71, 72? (a) 29 (b) 27 (c) 71 (d) 72
15. 15.Which number is the odd one out: 73, 5, 60, 41? (a) 73 (b) 5 (c) 60 (d) 41
16. 16.Which number is the odd one out: 35, 42, 90, 77? (a) 35 (b) 42 (c) 90 (d) 77
17. 17.Which number is the odd one out: 43, 37, 2, 98? (a) 43 (b) 37 (c) 2 (d) 98
18. 18.Which number is the odd one out: 29, 79, 93, 61? (a) 29 (b) 79 (c) 93 (d) 61
19. 19.Which number is the odd one out: 16, 48, 6, 64? (a) 16 (b) 48 (c) 6 (d) 64
20. 20.Which number is the odd one out: 92, 14, 24, 96? (a) 92 (b) 14 (c) 24 (d) 96
21. 21.Which number is the odd one out: 7, 19, 35, 97? (a) 7 (b) 19 (c) 35 (d) 97
22. 22.Which number is the odd one out: 9, 61, 3, 43? (a) 9 (b) 61 (c) 3 (d) 43
23. 23.Which number is the odd one out: 97, 22, 17, 83? (a) 97 (b) 22 (c) 17 (d) 83
24. 24.Which number is the odd one out: 31, 37, 24, 29? (a) 31 (b) 37 (c) 24 (d) 29
25. 25.Which number is the odd one out: 88, 19, 40, 20? (a) 88 (b) 19 (c) 40 (d) 20
26. 26.Which number is the odd one out: 59, 73, 17, 76? (a) 59 (b) 73 (c) 17 (d) 76
27. 27.Which number is the odd one out: 41, 32, 11, 53? (a) 41 (b) 32 (c) 11 (d) 53
28. 28.Which number is the odd one out: 79, 71, 41, 33? (a) 79 (b) 71 (c) 41 (d) 33
29. 29.Which number is the odd one out: 31, 83, 37, 80? (a) 31 (b) 83 (c) 37 (d) 80
30. 30.Which number is the odd one out: 93, 29, 13, 61? (a) 93 (b) 29 (c) 13 (d) 61
31. 31.Which number is the odd one out: 53, 67, 31, 87? (a) 53 (b) 67 (c) 31 (d) 87
32. 32.Which number is the odd one out: 3, 13, 89, 30? (a) 3 (b) 13 (c) 89 (d) 30
33. 33.Which number is the odd one out: 29, 85, 43, 89? (a) 29 (b) 85 (c) 43 (d) 89
34. 34.Which number is the odd one out: 40, 9, 80, 32? (a) 40 (b) 9 (c) 80 (d) 32
35. 35.Which number is the odd one out: 47, 27, 53, 11? (a) 47 (b) 27 (c) 53 (d) 11
36. 36.Which number is the odd one out: 41, 89, 38, 67? (a) 41 (b) 89 (c) 38 (d) 67
37. 37.Which number is the odd one out: 45, 53, 23, 71? (a) 45 (b) 53 (c) 23 (d) 71
38. 38.Which number is the odd one out: 37, 63, 31, 17? (a) 37 (b) 63 (c) 31 (d) 17
39. 39.Which number is the odd one out: 30, 53, 97, 47? (a) 30 (b) 53 (c) 97 (d) 47
40. 40.Which number is the odd one out: 34, 79, 53, 71? (a) 34 (b) 79 (c) 53 (d) 71

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