Math Review MA.3.GR.2.2

Geometry Review
MA.3.GR.2.2 Find the area of a rectangle with whole-number side lengths using a visual model and a multiplication formula.

By Alex Meads

You can count the squares to find the area.

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What we know

Math Response

Find the area.

Type answer here

Correct Answer: 48

Deg^°

Rad

Count the number of rows and multiply the number of squares in each row.

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What we want to know

Math Response

Find the area.

8 x 6 = ?

Type answer here

Correct Answer: 48

Deg^°

Rad

MA.3.GR.2.2 Find the area of a rectangle with whole-number side lengths using a visual model and a multiplication formula.

Mike plans to paint a wall in his living room blue. The wall measures 10 feet tall and 8 feet wide. What is the area of the wall Mike plans to paint blue?

The picture shows the length and width of Karen’s bedroom window.

Math Response

There are ? rows.

Type answer here

Correct Answer: 4

Deg^°

Rad

Math Response

There are ? squares in each row.

Type answer here

Correct Answer: 5

Deg^°

Rad

Math Response

4 x 5 = ?

Type answer here

Correct Answer: 20

Deg^°

Rad

Fill in the Blanks

So, the area of the window is?

The area of Lula's ramp is 27 square feet.

Write an equation to help us find the width of the ramp

Math Response

Lula's ramp is ? feet wide?

Type answer here

Correct Answer: 3

Deg^°

Rad

Now you can Find the area of a rectangle with side lengths using a picture and a length x width. Time to show off!

Math Response

Find the area.

Type answer here

Correct Answer: 24

Deg^°

Rad

Math Response

Find the area.

Type answer here

Correct Answer: 64

Deg^°

Rad

Multiple Choice

A garden is 9 feet long and has an area of 72 square feet. Which is the width of the garden?

• 8 ft

• 63 ft

• 81 ft

• 648 ft

Math Response

A rectangle has an area of 48 ft. What is the width of the figure?

Type answer here

Correct Answer: 4

Deg^°

Rad

Multiple Choice

A rectangle has a width of 7 units and an area of 42 square units. Which equation can be used to find the length of the rectangle?

• 7 + 42 = 49

• 42 - 7 = 35

• 7 x 42 = 294

• 42 ÷ 7 = 6