mm cm m km - Solent Junior School

We are learning to convert units of length.
10mm = 1cm
÷ 10
÷ 100
÷ 1000
100cm = 1m
mm
1000m = 1km
cm
x 10
x 100
m
km
x 1000
Remember: mm are smaller than cm so you will need a lot more of them to make up the equivalent length.
E.g. 54cm = 540mm
Try converting the following lengths from mm to cm.
1) 400mm =
cm
2) 250mm =
cm
3) 670mm =
cm
4) 160mm=
cm
5) 900mm =
cm
6) 1000mm =
cm
Now try converting the following cm to mm.
1) 50cm =
4) 310cm =
mm
mm
2) 45cm =
mm
3) 61cm =
5) 88cm =
mm
6) 200cm =
mm
mm