Re: [Phys-L] Sig Figs homework from my 7th grader

[Paul Nord <paul.nord@valpo.edu>]

True, then they are exact with zero error.  For this exercise the student is intended to presume that these are scientific data where the uncertainty is indicated by the number of significant digits.

But what would if you if these were the height of a block and the thickness of a coat of paint?

Paul

On Oct 9, 2013, at 9:26 AM, Chuck Britton <cvbritton@mac.com> wrote:

> If these numbers were representing Currency, then no rounding or traction would be called for.
>
> i.e. Counting Numbers don't get treated like Measurement Numbers.
>
>
> On Oct 9, 2013, at 9:49 AM, Paul Nord <paul.nord@valpo.edu> wrote:
>
> > I know the answer the teacher wants, but i find it troubling...
> >
> > 10.53 + 0.615 = ?
> >
> > Share and enjoy,
> > Paul
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