process calculation from text

Hi,

I there an easy way to process a calculation that is in text form as in:

"2567 + 82736"

"1000 * (27363 / 38374)"

"3434 + 34334  + 34332 + 83938"

Or do the strings have to be parsed and processed that way.  I was hoping there was a way to evaluate the calculation?

thanks.