Question

Find the number from each of the following expanded forms: ${3\times 10}^4+{7\times 10}^2+{5\times 10}^0$.

Answer 1

Compute the required value

We can find the number as shown below.

${3\times 10}^4+{7\times 10}^2+{5\times 10}^0$

$\Rightarrow 3\times 10000+7\times 100+5\times 1$

$\Rightarrow 30000+700+5$

$\Rightarrow 30705$

Hence, the number of the expanded form ${3\times 10}^4+{7\times 10}^2+{5\times 10}^0$ is $30705$.