Question

List 7 cm, 18 mm, 1 m, 3 dm in increasing order of length

Answer 1

First let's convert all of these into centimeters using the correct conversions:

`7cm=7cm`

`((18mm)/(1))* ((1cm)/(10mm))=1.8cm`

`((1m)/(1)) *((100cm)/(1m))=100cm`

`((3dm)/(1))* ((10cm)/(1dm))=30cm`

Therefore we can rank them in order now:

18mm < 7 cm < 3 dm < 1 m