Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 632 · 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, 21, 80, 56? (a) 40 (b) 21 (c) 80 (d) 56
2. 2.Which number is the odd one out: 37, 79, 22, 97? (a) 37 (b) 79 (c) 22 (d) 97
3. 3.Which number is the odd one out: 19, 53, 61, 57? (a) 19 (b) 53 (c) 61 (d) 57
4. 4.Which number is the odd one out: 6, 83, 79, 17? (a) 6 (b) 83 (c) 79 (d) 17
5. 5.Which number is the odd one out: 35, 50, 10, 7? (a) 35 (b) 50 (c) 10 (d) 7
6. 6.Which number is the odd one out: 17, 20, 79, 19? (a) 17 (b) 20 (c) 79 (d) 19
7. 7.Which number is the odd one out: 11, 79, 59, 20? (a) 11 (b) 79 (c) 59 (d) 20
8. 8.Which number is the odd one out: 24, 88, 96, 13? (a) 24 (b) 88 (c) 96 (d) 13
9. 9.Which number is the odd one out: 31, 63, 23, 59? (a) 31 (b) 63 (c) 23 (d) 59
10. 10.Which number is the odd one out: 31, 27, 71, 59? (a) 31 (b) 27 (c) 71 (d) 59
11. 11.Which number is the odd one out: 29, 7, 56, 31? (a) 29 (b) 7 (c) 56 (d) 31
12. 12.Which number is the odd one out: 96, 20, 40, 48? (a) 96 (b) 20 (c) 40 (d) 48
13. 13.Which number is the odd one out: 45, 64, 4, 16? (a) 45 (b) 64 (c) 4 (d) 16
14. 14.Which number is the odd one out: 37, 15, 83, 23? (a) 37 (b) 15 (c) 83 (d) 23
15. 15.Which number is the odd one out: 83, 99, 67, 23? (a) 83 (b) 99 (c) 67 (d) 23
16. 16.Which number is the odd one out: 83, 59, 99, 43? (a) 83 (b) 59 (c) 99 (d) 43
17. 17.Which number is the odd one out: 25, 47, 83, 67? (a) 25 (b) 47 (c) 83 (d) 67
18. 18.Which number is the odd one out: 43, 6, 31, 83? (a) 43 (b) 6 (c) 31 (d) 83
19. 19.Which number is the odd one out: 33, 20, 93, 15? (a) 33 (b) 20 (c) 93 (d) 15
20. 20.Which number is the odd one out: 45, 26, 46, 34? (a) 45 (b) 26 (c) 46 (d) 34
21. 21.Which number is the odd one out: 42, 52, 14, 84? (a) 42 (b) 52 (c) 14 (d) 84
22. 22.Which number is the odd one out: 8, 88, 50, 32? (a) 8 (b) 88 (c) 50 (d) 32
23. 23.Which number is the odd one out: 15, 13, 41, 29? (a) 15 (b) 13 (c) 41 (d) 29
24. 24.Which number is the odd one out: 12, 67, 47, 2? (a) 12 (b) 67 (c) 47 (d) 2
25. 25.Which number is the odd one out: 79, 70, 97, 13? (a) 79 (b) 70 (c) 97 (d) 13
26. 26.Which number is the odd one out: 19, 64, 59, 71? (a) 19 (b) 64 (c) 59 (d) 71
27. 27.Which number is the odd one out: 11, 13, 71, 26? (a) 11 (b) 13 (c) 71 (d) 26
28. 28.Which number is the odd one out: 71, 53, 9, 19? (a) 71 (b) 53 (c) 9 (d) 19
29. 29.Which number is the odd one out: 65, 5, 59, 31? (a) 65 (b) 5 (c) 59 (d) 31
30. 30.Which number is the odd one out: 61, 83, 37, 92? (a) 61 (b) 83 (c) 37 (d) 92
31. 31.Which number is the odd one out: 13, 66, 48, 24? (a) 13 (b) 66 (c) 48 (d) 24
32. 32.Which number is the odd one out: 19, 96, 11, 89? (a) 19 (b) 96 (c) 11 (d) 89
33. 33.Which number is the odd one out: 49, 98, 44, 52? (a) 49 (b) 98 (c) 44 (d) 52
34. 34.Which number is the odd one out: 41, 43, 29, 58? (a) 41 (b) 43 (c) 29 (d) 58
35. 35.Which number is the odd one out: 17, 73, 96, 67? (a) 17 (b) 73 (c) 96 (d) 67
36. 36.Which number is the odd one out: 46, 74, 79, 22? (a) 46 (b) 74 (c) 79 (d) 22
37. 37.Which number is the odd one out: 18, 50, 90, 6? (a) 18 (b) 50 (c) 90 (d) 6
38. 38.Which number is the odd one out: 37, 6, 59, 11? (a) 37 (b) 6 (c) 59 (d) 11
39. 39.Which number is the odd one out: 48, 31, 19, 79? (a) 48 (b) 31 (c) 19 (d) 79
40. 40.Which number is the odd one out: 73, 23, 97, 84? (a) 73 (b) 23 (c) 97 (d) 84

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