# How do you write 3,500,000,000 in scientific notation?

Jun 25, 2018

$3.5 \times {10}^{9}$

#### Explanation:

Given: $3 , 500 , 000 , 000$

Scientific notation requires a decimal to the right of the left-most non-zero number.

If there is no decimal, place a decimal to the far-right of all of the numbers: $3 , 500 , 000 , 000.$

Now move the decimal to the left until it resides to the right of the left-most non-zero number. Count how many places the decimal has moved:

$3.500000000 \implies$decimal moved $9$ places

Remove the extra zeros unless this is a measurement: $\text{ } 3.5 \times {10}^{9}$