Originally Posted by
sweets
The centiminute scale is for ease of calculation when adding and multiplying individual timed taks/events and adding them up.
Because you can use a calculator to do so.
Imagine you have a combined sequence that takes 3 x 34 seconds, 5 x 41 seconds and 2 x 12 seconds. How many minutes? You have to add up all the seconds, divide by 60 to get minutes, and get a remainder. Complicated.
Instead, calculate 3 x 0.57, 5 x 0.68 and 2 x 0.2. Much easier, you use a calculator in decimals, then convert back if you want.
D