One question that often arises is whether or not it is possible for this nine-digit number to start with a "0." Well, as it turns out, while these nine-digit numbers don't commonly start with "0 ...

Numbers don't just stop at zero. When you count backwards from zero, you go into negative numbers. Positive numbers are more than zero: 1, 2, 3, 4, 5, etc. Negative ...

Multiplying and dividing whole numbers by numbers greater than 0 and less than 1 can be broken into a whole number calculation followed by multiplying or dividing by a power of 10, for example 10 ...