Answer:
\(18mm<7cm<3dm<1m\)
Step-by-step explanation:
First of all we will convert all unit in m then we will find which quantity is smallest.
We know that
\(1cm=10^{-2} m\)
therefore,
7cm=\(7\times 10^{-2} m\)
0r 7cm=0.07m
\(1mm=10^{-3} m\)
therefore,
\(18mm=18\times 10^{-3} m\)
\(18mm=.018m\)
\(1dm=10^{-1} m\)
therefore,
\(3dm=3\times 10^{-1} m\)
\(3dm=0.3m\)
Therefore it is clear that,
\(.018m<.07m<.3m<1m\)
It means
\(18mm<7cm<3dm<1m\)
