1
There is an infinite amount of rational numbers between 0 and 1, and a larger infinite number of decimals. However, there are no integers or whole numbers.
0.1, 0.2, 0.11, 0.12 etc
If you allow fractions and decimals, then there are an infinite number of them. If you only want to talk about whole numbers, then there are only nine of them.
because you can always add a 0 when using decimals
Actually, there is an infinite number of decimals between 0 and 1.
the answer depends on what kind of numbers you are dealing with. If you are using only integers then there is no answer to this question. Integers are numbers without decimals, both negative, positive and zero. If you are using real numbers (which includes decimals), then then there are an infinite number of possibilities between 1 and 0 (ie. 0.1, 0.2, 0.3, 0.4, 0.5, 0.87, 0.6543 etc..).
1
There is an infinite amount of rational numbers between 0 and 1, and a larger infinite number of decimals. However, there are no integers or whole numbers.
0.1, 0.2, 0.11, 0.12 etc
when the numbers are between 0 and 1
There are 9*9*8*7 = 4536 of them.
0.1, 0.25 and 0.674 but note that there are thousands of decimals between 0 to 1.
If you allow fractions and decimals, then there are an infinite number of them. If you only want to talk about whole numbers, then there are only nine of them.
Either 0.23579 if you are using decimals OR 203,579 if you must use whole numbers.
because you can always add a 0 when using decimals
Numbers are infinite, as a matter of fact counting decimals there are a infinite amount of numbers between 0 and 1. So depending on what you mean with natural numbers no, there is no natural last number.