Follow the accuracy requested. Unless another accuracy is specified, the examination convention for non-exact numerical answers is 3 significant figures, or 1 decimal place for angles in degrees. Preserve exact answers when appropriate. Example A calculation gives 12.7468 cm, reported as 12.7 cm to 3 significant figures. An angle 38.672 becomes 38.7. If asked to show a result correct to a stated accuracy, show a more accurate value before rounding. For practical counts, use the context: 83 people in vehicles holding 12 each need 7 vehicles, because 6 carry only 72.

Follow the accuracy requested. Unless another accuracy is specified, the examination convention for non-exact numerical answers is \(3\) significant figures, or \(1\) decimal place for angles in degrees. Preserve exact answers when appropriate.

A calculation gives \(12.7468\ldots\text{ cm}\), reported as \(12.7\text{ cm}\) to \(3\) significant figures. An angle \(38.672\ldots{}^\circ\) becomes \(38.7^\circ\).

If asked to show a result correct to a stated accuracy, show a more accurate value before rounding. For practical counts, use the context: \(83\) people in vehicles holding \(12\) each need \(7\) vehicles, because \(6\) carry only \(72\).

Reporting an answer sensibly

Reporting an answer sensibly