Question

What is the sum of 4.9 x 10^2and 6.8 x 103?

Answer 1

For this case we must add the following expressions:

`4.9 * 10 ^ 2\\6.8 * 10 ^ 3`

Rewriting we have:

`4.9 * 10 ^ 2 = 490\\6.8 * 10 ^ 3 = 6800`

Adding we have:

`490 + 6800 = 7290`

Answer:

7290 equivalent to
`7.29 * 10 ^ 3`