Find area by counting unit squares

The  exercise appears under the 3rd grade (U.S.) Math Mission This exercise practices finding the area of shapes by counting the unit squares inside them.

Types of problems
There is one type of problem in this exercise:
 * 1) What is the area of the shape?: This problem has a shape in a grid and user is asked to find the area of the shape.

Strategies
Basic knowledge of finding area is required for this exercise.
 * 1) Instead of counting every single square, user can also use shortcuts by breaking up the squares and using simple multiplication, such as $$2\times 3$$ to help speed up the process of counting the squares.

Real-life Applications

 * 1) Area is used for baseboards and other molding for housing.