Question

List measurements smallest to largest 7cm 18mm 1m 3 dm

Answer 1

18mm, 7cm, 3dm, 1m............

Answer 2

Answer:

$18mm$

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,

$.018m$

It means

$18mm$