Metres.
Well, sweetheart, the best estimate for the width of a classroom would typically be around 20 to 25 feet wide. But hey, if you want to get fancy with it, you can always whip out a measuring tape and get the exact number. Just make sure to watch out for any lurking dust bunnies while you're at it.
a tape measure
gRAMS
pounds
It depends on the width of the desk. You could use centimeters or meters.
It is a metre.
cm
A caliper would be the best tool for measuring the width of a pencil lead. It is precise and allows you to measure small dimensions accurately.
the metric system
barman curls -2
In liters
Metres.
A millimetre.
Mililiter
mm, cm or m.
Milligrams.