What is the thermometer scale division?

First, let’s figure out what is the price of one division or data center. To measure any value, for example, temperature using a thermometer, you need to know the data center. Data center is the difference between two adjacent values. and divided by the number of strokes between them.
To find the meaning. We look at what number the liquid level has overcome last and count the number of strokes after this number to the level. Next, we multiply the data center by the number of strokes and add the number. We got the result.
For example: The thermometer has adjacent numbers 20 and 40, and the number of strokes between them is 10. Then we subtract 40 from 50 and divide by 10, the result obtained is the data center. That is (40-20) / 10 = 2. As you know, our temperature is measured in degrees Celsius, but it can change in other units depending on the place and purpose of the measurement. We got a data center equal to 2. It is written as data center = 2 celsius / div.
Since most of the thermometers in the CIS countries have one data center. I can assume that the answer to your posed question is the price of one division equal to 1 degree per division.
That is, the step of the thermometer is 10 degrees, and there are 10 lines between adjacent numbers.