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

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