Question

Convert the following into decameters.
1)1888 cm
2)10945 mm
3) 1278 dm

Answer 1

$$\begin{gathered} \left(1\right). \\ 1\mathrm{cm}=\frac{1}{1000}\mathrm{dam} \\ \Rightarrow 1888\mathrm{cm}=\frac{1888}{1000}\mathrm{dam}=1.888\mathrm{dam} \\ \left(2\right). \\ 1\mathrm{mm}=\frac{1}{10000}\mathrm{dam} \\ \Rightarrow 1095\mathrm{mm}=\frac{10945}{10000}\mathrm{dam}=1.0945\mathrm{dam} \\ \left(3\right). \\ 1\mathrm{dm}=\frac{1}{100}\mathrm{dam} \\ 1278\mathrm{dm}=\frac{1278}{100}\mathrm{dam}=12.78\mathrm{dam} \end{gathered}$$