To find the missing terms in the sequences: 82, 81, 78, -, 66, - and 5, 6, 8, -, 15, - we need to identify the pattern in each sequence.
For the first sequence (82, 81, 78, -, 66, -), we can see that each term is decreasing by 1, then decreasing by 13. So the missing terms are 63 and 60.
Therefore, the full sequence is: 82, 81, 78, 63, 66, 60.
For the second sequence (5, 6, 8, -, 15, -), we can see that each term is increasing by 1, then increasing by 7. So the missing terms are 11 and 22.
Therefore, the full sequence is: 5, 6, 8, 11, 15, 22.