Lattice
Area Model
Name the multiplication method
Standard Algorithm
Word problems
100

5 x 24

120

100

12 x 4

144

100

This method uses place holder zeroes.

Standard Algorithm

100

88 x 3

264

100

Maryann wanted to get a lot of marbles for her marble jar. She purchased  8 bags of 187 marbles. What was her total amount?

1496 Marbles

200

6 x 50

300

200

37 x 8

296

200
This method uses adding the same number over and over.
What is repeated addition?
200

41 x 9

369

200

Hansel was walking along a dark and stormy path. He had taken this path at least 9 times before and knew it well. He knew that the path was 3,512 feet and wanted to see how long it would take. How many total feet has he walked in the past?

31 608

300

164 x 5

820

300

7 x 96

672

300

This method looks like this:

   45

x 19

Standard Algorithm

300

92 x 7 

644

300

Jason purchased 7 boxes of pencils that each hold 565 pencils per box. How many pencils does he have?

3995 pencils

400

658 x 9

5922

400

456 x 4

1824

400

This method involves creating a box with both numbers being multiplied on the outside of the box, enough rows and columns for both numbers, then a diagonal line going though each smaller box.

Lattice Method

400

721 x 4

2884

400

Jim goes to a basketball game with his parents and brother. Each ticket costs $987. How much in all does Jim pay for the tickets?

$3948

500

87 x 9

8883

500

898 x 7

6286

500

This involves a box with the numbers being multiplied being broken up into expanded form and rewritten along the outside of the box. Hint: no diagonal lines

Area Model

500

1658 x 5

8290

500

Hailey and 2 friends are going on a sky-diving trip. It costs $800 an hour to rent the plane ride and a flat fee of $576 per person for the equipment. If they skydive for 4 hours, how much is their total cost?

800 x 4 = 3200

576 x 3 = 1728

3200 + 1728 = $4928

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