Understanding the properties that indicate the size of numbers is also known "numerical magnitudes".
Anything that can be portrayed by a quantitative number has magnitude. 50 mph, has the number 50, the speed mph has magnitude. 4.33 cm has the number 4.33, the length cm has magnitude. Your weight is 150 lbs, it has the number 150 so your weight has magnitude. 5 individuals are working the late shift, 5 is a number; so the workforce on the late shift has magnitude.