# How do you write 4 hundred thousand in scientific notation?

Mar 19, 2018

$400 000 = {4.10}^{5}$

#### Explanation:

First let's put numbers on words. 4 hundred thousands is 400 000. Scientific notation have to be compound with a number between 0 and 10, completed with zeros. So We have :
$400 000 = {4.10}^{5}$

Mar 19, 2018

$400 , 000 = 4.0 \times {10}^{5} \to \text{Scientific notation}$
Hence; $400 , 000 = 4.0 \times {10}^{5}$ which means we counted to the right, five times, that results our exponential value to become $E 5 \mathmr{and} {10}^{5}$