1 x 2-digit 1 x 3-digit

Use an Area Model to Multiply Materials: Multiplication Equations Board (1 x 2-digit or 1 x 3-digit) ______________________________________________________________________________________________________________________________________

1. Work with a partner. Choose a line of four problems from the board (vertically, horizontally or diagonally) that you will both solve. 2. Solve each problem by drawing a rectangle to represent the problem and decomposing the greater factor into tens and ones. Divide the rectangle into smaller rectangles to show the factors. 3. Use mental math to find the product of each of the smaller rectangles. Then, find the sum of the partial products. 4. Check your work with your partner. Then repeat with another line of problems. Examples:

6

6 x 24 =

4 x 125 =

20

4

120

24

120 + 24 = 144

4

100

20

5

400

80

20

400 + 80 + 20 = 500

©K-5MathTeachingResources.com

1 x 2-digit

4 x 23

5 x 52

6 x 29

7 x 54

21 x 8

32 x 9

43 x 3

34 x 6

9 x 19

4 x 16

4 x 23

4 x 35

32 x 7

85 x 4

47 x 3

39 x 6 ©K-5MathTeachingResources.com

1 x 3-digit

4 x 217

5 x 123

6 x 216

7 x 154

223 x 8

332 x 9

345 x 3

239 x 6

9 x 138

5 x 213

4 x 266

7 x 137

133 x 7

222 x 8

144 x 4

623 x 2 ©K-5MathTeachingResources.com