The tolerance - how far out one may be for the estimate
to be accepted and the answer shown - must at all times
appear reasonable... The student should never feel that
an estimate was unreasonably rejected, and on the other
hand should not find an odd guess being accepted.
Or with automatic line breaks: The tolerance - how far out one may be for the estimate to be accepted and the answer shown - must at all times appear reasonable ... The student should never feel that an estimate was unreasonably rejected, and on the other hand should not find an odd guess being accepted.