A square with an top as 100cm and a side with 1 m

A= b x h
A= 100 x1
A= 100 cm2 or m2?

3 answers

Before you start multiplying, you need to make sure everything is in the same units. For length, you can use either cm or m. I'll pick meters. That means we have to convert 100cm to m. There are 100 cm in a m, so 100cm = 1m. Meters x meters = square meters (m^2), and 1m x 1m = 1m^2.
the answer is 1m2
the carat symbol ^ means "to the power of"