Number Line Problem: Find the Value at the Red Point (0-9 Scale)

Let's first look at the numbers on the number line from left to right:

$0,2,3,5,6$

We'll try to find the common pattern.

Note that the difference between 0 and 2 is +2.

The difference between 2 and 3 is +1.

The difference between 3 and 5 is +2.

The difference between 5 and 6 is +1.

Therefore, the next operation is +2:

$6+2=8$