Calculate, in square centimeters, the area of a rectangle whose dimensions are dm and m.
In this problem, we should start by converting the units for length and width to centimetres.
There are 10 centimetres in 1 decimetre, so we need to multiply the length by 10 to convert to centimetres:
There are 100 centimetres in 1 metre, so we should multiply the width by 100 to convert to centimetres:
To calculate the area of the rectangle, we multiply the length by the width: