Multiply Using the Area Model

Area Model 1x2

100

Use the area model to solve 2 x 22

2 x 22 = 44

200

42 x 5

42 x 5 = 210

DOUBLE POINTS

300

36 x 4

36 x 4 = 144

400

7 x 63

7 x 63 = 441

500

A small cookie factory produced 9 packages of cookies. There were 48 cookies in each package. How many cookies are there?

9 x 48 = 432 cookies

Area Model 1x3, 1x4

100

5 x 234

5 x 234 = 1,170

TRIPLE POINTS

200

6 x 543

6 x 543 = 3,258

300

1,225 x 4

1,225 x 4 = 4,900

400

A teacher has 125 boxes of chalk stored for the entire school year. Each box has 8 pieces of chalk. How many pieces of chalk does the teacher have?

125 x 8 = 1,000

DOUBLE POINTS

500

At TJ Middle School, 104 students are putting on a puppet show. Each student made 5 puppets for the show. How many puppets are there in all?

104 x 5 = 520 puppets in all

Expand It!

100

29

20 + 9

TRIPLE POINTS

200

102

100+2

300

729

700+20+9

400

2000+30+1

2031

500

Lewis saw the expanded number 20000 + 300 + 2 and wrote the number 23002. is Lewis correct? If not, what is the correct answer?

20302