The sequence provided is decreasing by $-2$ with each step. Here's the continuation:

$-84, -86, -88, -90, -92, \mathbf{-94}$

Missing number: -94

Would you like further details or have additional questions? Here are 5 related questions to explore further:

1. What would be the 10th term of this sequence?
2. How can you identify the nth term in arithmetic sequences like this?
3. Can we calculate the sum of the first 50 terms in this sequence?
4. What happens if this sequence is reversed into an increasing series?
5. What is the general formula for an arithmetic sequence?

Tip: For arithmetic sequences, always identify the common difference; it helps to predict any term in the sequence.