Question

How do you use scientific notation $?$

Answer 1

We have to know what is scientific notation. We use scientific notation to write a large expression very easily in a small way. And it is expected all over the world. So this is very convenient and easy to communicate with people from other countries. With the scientific notation the communication between scientists and students also from various countries became so easy. So this is the main reason to use scientific notation.

Complete answer:
This is a way to write very large or very small numbers. Like if we say, $450000000$, then we can write it like $4.5 \times {10^8}$. Now, by this we can express a huge number in an easy and simplest way. The proper format of scientific notation is a $x{10^b}$. Where a is a decimal number which is greater than or equal to one and less than ten. Here b is the power of ten.

It can be anything depending upon the number. This scientific notation is equivalent to the original number. b can be positive and negative. This is very useful to communicate and to work with. When a number consists of a large number of zeros then it becomes so difficult to calculate and also errors can occur, but when we use scientific notation then error can vanish.

Note: We can get confused by the scientific notation of physics and chemistry too. There is an innumerable number of notations in physics, chemistry, mathematics etc everywhere. So we have to learn about all those notations to make any calculation easy.