how many significant figures are in the number 0.00208?:-It used to be that the question, how many significant numbers, was asked only by those in mathematics.

Now, though, many people have become interested in answering this question too, as well as the way they can use them to make money through various methods. How many digits are there in decimals? How about in percentage terms?

## how many significant figures are in the number 0.00208?

### how many significant figures are in the number 0.00208?

Answer

Sig Figs

3

0.00__208__

Decimals

5

0.__00208__

Scientific Notation

2.08 × 10^{-3}

E-Notation

2.08e-3

Words

zero point zero zero two zero eight

In simple terms, a decimal is a number (in the format of [pi, percent, seconds, etc.]) whose fraction is one or more digits? Let’s say, for instance, that we are computing the value of a percentage figure. We could either do it with decimals, which would yield four significant digits: the fraction itself, plus the entire fraction after rounding to the nearest whole number, plus one more digit, the leading zero or the denominator. The number, then, would be five digits.

This, then, can be written as the numerical value of the fraction (after rounding to the nearest whole number) and the leading zero is the number that tells us the decimal portion of one to the next decimal.

In other words, decimals can be thought of as a finite number of repeating measurements. And since the decimals, when added together, always add up to exactly what we are working with, it follows that there must be an infinite number of these measurements. But what if we were told that there are two ways to compute decimals? One method is known as the exact number method, while another is called the rounding to zero method.

Let’s assume for a moment that we know, for certain, that there are no less than three significant digits between the decimal point and the closest whole number to it. (It doesn’t matter if the next number is a fraction; it doesn’t matter if it’s not a number.)

We can also assume that any digit can be divided by any other digit, so long as all the possible divisions are made into multiples of ten. We also know, in fact, that any such division involving multiples of ten will yield a rounded fraction, which will always equal zero.

So we see that there are no trailing zeros. If there were, then the rounding to zero would be a problem because if the number were not significant, the rounding to zero would give rise to negative zeros instead of positive ones.

The second method of computing decimals is known as the exact-digit or exact numerator notation. It involves writing down the denominator in binary form, then completing the equation by adding the corresponding significant digits. For instance, if x is the numerator, then the expression representing the division by x is the exact-digitdivider. (The only real difficulty with this form of computation is that it’s only a tool that’s available to computers; a calculator would already have this type of computation.)

The third method of computing decimals is known as decimals using radii. This form of computation uses the fraction “00” through “9”. In this case, the fraction should be written down in binary form. Any digits not in binary form should be written in lower case, and the leading zeros should be considered as negative infinity (if they’re followed by a number other than one, which will be clearly shown on the graph).

The decimals are once again rounded to one hundredths of a degree, and decimals of ten are once again treated as zero, with all leading zeros as signifying the absolute value of their residue. (The exactness of these calculations will vary depending on the accuracy of the calculator used and the precision of the input number.)

The final method of computing decimals is known as the exact-digit method, which yields results which are mathematically similar to the first and second methods described. Here, when computing decimals, the digits which must be written down must always be in the right order. For example, if a number is written out, such as “1.2 trillion”, the decimals are written in order from left to right, starting with the smallest amount (the first digit, which is itself a number, of course, is always significant).

Any digits that are written after this need to be considered as being left out, since they will be written before or after the next digit. Once all the relevant digits are in place, this is the final result that is produced. And because this is always significant, the decimals of any amount are always significant digits.

If you were asked how many significant figures there are, you could use any one of these methods. If you were asked how many decimals of ten are in this example, your answer might contain all of them.

However, you would not have any way of knowing how many were written out without consulting a calculator. Therefore, it is recommended that you consult a calculator whenever you need to know or compute the number of digits.

Find here Sig Fig Calculator (Rounding)