Find the missing term/s in each sequence

Ex.-1,_,_,_,31,39

I looks like each term is increased by 8. Try it.

To find the missing terms in the sequence 1, _, _, _, 31, 39, we need to analyze the pattern between the given numbers.

The difference between 1 and 31 is 30, and the difference between 31 and 39 is 8.

It appears that the pattern is an alternating sequence where the first difference is 30 and the second difference is 8.

Using this pattern, we can find the missing terms:

1 + 30 = 31
31 + 8 = 39
39 + 30 = 69
69 + 8 = 77

Therefore, the missing terms in the sequence are 69 and 77.

To find the missing terms in the sequence -1, _, _, _, 31, 39, we need to identify the pattern or rule that governs the numbers.

First, let's observe the given numbers: -1, 31, and 39. It appears that the sequence is increasing, i.e., each term is larger than the previous one.

Now, let's consider the gap between each pair of consecutive terms. We have a missing term between -1 and 31, and another missing term between 31 and 39. The gaps are 31 - (-1) = 32 and 39 - 31 = 8.

It seems that the gap between the terms is increasing by 8 each time. Therefore, we can assume that the missing terms will also follow this pattern.

Using this information, we can calculate the missing terms:
-1 + 32 = 31 (the missing term between -1 and 31)
31 + 8 = 39 (the missing term between 31 and 39)

So, the missing terms in the sequence are 31 and 39.

Therefore, the complete sequence is: -1, 31, 31, 39.