The sequence starts at 800 and decreases by 40 each time. The given numbers are:

• 800, 760, 720, 680, ...

Following the rule of subtracting 40, the next two terms are:

1. $680 - 40 = 640$
2. $640 - 40 = 600$

Final Answer:

The next two terms are 640 and 600.

Would you like a detailed explanation of arithmetic sequences or further help?

Related Questions:

1. What is the formula for the $n$-th term of an arithmetic sequence?
2. How do you find the sum of the first $n$ terms in an arithmetic sequence?
3. What are some examples of decreasing sequences in real life?
4. How would you graph this sequence on a number line or coordinate plane?
5. Can you identify patterns if the rule changes to subtracting 20 instead of 40?

Tip:

Always double-check your subtraction or addition when working with sequences, especially if the pattern involves repeated steps!