This. People need to manage their expectations.
Why offer a solution then? Seems fairly easy for google to avoid giving the final number?
That's not how LLMs work. These systems take a stream of tokens, do some linear algebra to find a stream of tokens within the parameters of their vector similarity, and spit out the result.
We're giving them calculators though, surely Google could provide a limited set of tools given Search already has a fairly sophisticated calculator.
I've been having my AI stuff successfully do math since early gp3 days with this method— even before "tool calling."
Expectations can only be managed by someone who has sufficient understanding - in this case Google by not providing the result.