Van \(\text{dm}\) naar \(\text{mm}\) is \(2\) stappen, per stap vermenigvuldigen met \(10\text{,}\) dus \(2{,}3\text{ }\text{dm}=230\text{ }\text{mm}\text{.}\)

Van \(\text{dm}\) naar \(\text{dam}\) is \(2\) stappen, per stap delen door \(10\text{,}\) dus \(870\text{ }\text{dm}=8{,}7\text{ }\text{dam}\text{.}\)

\(2{,}5\text{ }\text{km}^2=25\,000\text{ }\text{dam}^2=25\,000\text{ }\text{are}\)

\(2{,}9\text{ }\text{km}^2=290\text{ }\text{hm}^2=290\text{ }\text{ha}\)

\(6{,}2\text{ }\text{dL}=0{,}62\text{ }\text{L}=0{,}62\text{ }\text{dm}^3\)