Question

(9×10^2)+(4×10^3)

give your anwser in standard form​

Answer 1

4.9 ×
`10^3`

Explanation:

Start by doing what is in the paranthesis from right to left.

`9 * 10^2 = 900`

and

`4 * 10^3 = 4000`

So if we add them we get:

`900 + 4000 = 4900`

Now to put it into standard form we just put a decimal to the right of the first number and see how many times we need to move right in order to make the number. In this case it's 3 times so we tack on ×
`10^3`

So our answer is:

`4.9` ×
`10^3`