The key to understanding the question lies in knowing the scale of the number line
Observe that between 5.5 & 5.6, there are 10 segments/points
To know how much each segment/point is worth, we will divide the difference between 5.5 & 5.6 by the number of segment/point between them (as shown below)
5.6 - 5.5 = 0.1
We divide 0.1 by 10:
0.1/10 = 0.01
That tells us that each segment/point is worth 0.01
