Rounding/Examples/12.5664 to Two Significant Figures

Example of Rounding

$12 \cdotp 5664$ rounded to $2$ significant figures is $13$.

This is because $12 \cdotp 5664$ is closer to $13$ than it is to $12$.

Sources

• 1938: A. Geary, H.V. Lowry and H.A. Hayden: Mathematics for Technical Students, Part One ... (previous) ... (next): Arithmetic: Chapter $\text I$: Decimals: Decimal Places and Significant Figures