Unit 2 Review

Multiplication Math Facts

100

Answer all of them.

5 x 5 

2 x 10

5 x 5 = 25

2 x 10 = 20

200

What is 4 x 6?

What is 7 x 5?

4 x 6 = 24

7 x 5 = 35

300

Find the product of:

7 x 8

6 x 7

7 x 8 = 56

6 x 7 = 42

400

Find the product of: 

8 x 9

6 x 8

4 x 7

8 x 9 = 72

6 x 8 = 48

4 x 7 = 28

500

What is:

9 x 7

9 x 9 

9 x 6

9 x 7 = 63

9 x 9 = 81

9 x 6 = 54

Equal Groups

100

What expression describes this picture?

2 x 5 

or 

5 x 2

200

Write an equation to this picture.

12 x 2 = 24

or

2 x 12 = 24

300

Richie has 3 boxes of crayons. Each box contains 6 crayons. How many crayons does he have in total?

Richie has 18 crayons.

(3 x 6 = 18)

400

Write the correct factor to make this equation true.

7 x ___ = 42

7 x 6 = 42

500

There are 5 classrooms in a school. Each classroom has 2 rows of desks. If each row has 4 desks, how many desks are there in total in the school?

There are 40 desks in total.

(5 x 2 x 4 = 40 

or 

2 x 4 = 8

8 x 5 = 40)

Array

100

Write an expression to describe this array.

5 x 9 

or 

9 x 5

200

Draw an array to show this expression.

3 x 5

300

In a garden, there are 6 rows of flowers. Each row has 5 flowers planted in it. How many flowers are there in the garden?

There are 30 flowers in the garden.

( 6 x 5 = 30 )

400

A factory makes boxes of pencils. Each box has 2 rows of pencils, and there are 5 pencils in each row. If the factory makes 7 boxes of pencils, how many pencils are there in total?

There are 70 pencils in total.

2 x 5 x 7 = 70

or 

2 x 5 = 10

10 x 7 = 70

500

A school has 6 tables in the cafeteria. Each table has 4 chairs on one side and 4 chairs on the other side. How many chairs are there in total?

There are 48 chairs in total.

6 x 4 x 4 = 48

or 

4 x 4 =16

16 x 4 = 48 

Area

100

Write an expression that describes this rectangle. 

3 x 6

200

Find the area of this rectangle. 

Area = 15

( 3 x 5 = 15 )

300

Emily wants to plant a garden in the shape of a rectangle. The garden is 8 feet long and 5 feet wide. What is the area of the garden?

The area of the garden is 40 square feet.

( 8 x 5 = 40 )

400

Write two expressions that describe the image below.

(4 x 2) + (4 x 3)

500

Write two expressions that describes the image below.

(3 x 5) + (3 x 4)

Irregular Shapes

100

Find the total area of this figure.

50 square in.  

( 36 + 14 = 50 )

200

Find the total area of this figure.

110 square cm

(10 x 6 = 60

10 x 5 = 50

60 + 50 = 110)

300

Find the total area of this figure. 

Area = 22

( 5 x 2 = 10

4 x 3 = 12

10 + 12 = 22)

400

Find the total area of the living room.

The total area of the living room is 24 square inches. 

( 5 x 4 = 20

2 x 2 = 4

20 + 4 = 24)

500

Find the total area of the living room and bedroom.

The total area is 45 square inches.

( 5 x 9 = 45 )