Question

Express the following numbers in standard form

$5$ million.

Answer 1

Given number: $5$ million.

A number in standard form is written as $\mathrm{a}\times {10}^{\mathrm{k}}$, where $\mathrm{a}$ is a terminating decimal such that $1\le \mathrm{a}<10$and $\mathrm{k}$ is any integer.

Since, $5$ million $=5000000$

Now,

$$\begin{gathered} 5000000=5000000\times \frac{{10}^6}{{10}^6} \\ =5\times {10}^6 \end{gathered}$$

Hence, standard form of $5$million is $5\times {10}^6$.