Question

Express $8m$ as $km$ using decimals?

Answer 1

Conversion of length:

We know that

$$\begin{gathered} 1000m=1km \\ 1m=\frac{1}{1000}km \end{gathered}$$

so,

$$\begin{gathered} 8m=1m\times 8 \\ 8m=\frac{1}{1000}km\times 8 \\ =\frac{8}{1000}km \end{gathered}$$

therefore, $8m=0.008km$