# How do you express 50,000,000 in scientific form?

Apr 13, 2017

$5 \times {10}^{7}$

#### Explanation:

Scientific notation is a way of writing very big or very numbers using powers of 10.

The powers of $10$ are: $10 , \text{ "100," "1000," } 10000 \ldots$ etc

100 = 10^2" and 100,000 = 10^5 and so on.

$400$ means there are 4 hundreds, or
$400 = 4 \times 100 = 4 \times {10}^{2}$
$435$ means there is a bit more than 4 hundreds, or

$4.35 \times 100 = 4.35 \times {10}^{2}$

There is always only ONE digit before the decimal point.

$5 \textcolor{red}{0 , 000 , 000.} = 5 \times {10}^{\textcolor{red}{7}}$

Count how many place holders there are.

$5 \textcolor{red}{1 , 300 , 000.}$ would be written as $5.35 \times {10}^{\textcolor{red}{7}}$