Adding Unit Squares to Find Area

How many square tiles with a side length of 1 unit will fit inside the rectangle shown?

• 10 tiles

• 11 tiles

• 20 tiles

• 21 tiles

The figure shown is made of unit squares. Choose True or False for each statement.

The area of the whole figure can be found by adding the areas of the shaded and unshaded parts.

• true

• false

In square units (sq units), what is the area of the shaded part of the figure shown?

The figure shown is made of unit squares. Choose True or False for each statement.

The area of the shaded part is equivalent to 8 × 8.

• true

• false

Ms. Tomasina wants to cover her bulletin board with plastic. The bulletin board is pictured above on a grid. Which is the best way to find the area of the bulletin board?

• Count the number of units around the bulletin board.

• Count the total number of squares on the bulletin board.

• Count the units along the outside.

• She can not cover her bulletin board.

Ms. Tomasina wants to cover her bulletin board with plastic. The bulletin board is pictured above on a grid. Which is the best way to find the area of the bulletin board?

• Count the number of units around the bulletin board.

• Count the total number of squares on the bulletin board.

• Count the units along the outside.

• She can not cover her bulletin board.

What is the total area of the pink model?

• 3 units squared

• 4 units squared

• 7 units squared

• 12 units squared

What is the total area of the model?

• 6

• 10

• 12

• 14

Select all strategies that could be used to find the area of this shape. (Hint: Select all means more than one)

• The area can be found by counting the number of squares that touch the edge of the shape

• The area can be found by adding 5x2, 4x2, and 2x2

• The area of the shape is 22 square units

• The area can be found by counting the number of grid squares inside the shape

What is the area of this irregular shape?

• 10

• 16

• 8

• 12