Using Area Models to Multiply Decimals

What types of multiplication is the area model suitable for?

• whole numbers

• fractions

• decimals

• polygons

The narrator decomposed/broke up 16 into

(a)   .

• 10 and 6
• 8 and 8
• 2 and 0.5
• 16 and 2.5

Which numbers does the narrator decompose/break up 16?

• 10 and 6

• 8 and 8

• 2 and 0.5

• 16 and 2.5

Why is the box on the bottom left equal to 6x2?

• Because it represents the area of a rectangle with sides equal to 6 and 2

• Because the box says 6 and 2

• Because the top says 6 and the side says 2

• I don't know.

What is 10x0.5?

What number is equal to 30 tenths?

What is the next step?

• I am done. No more steps.

• Add all the smaller areas that I calculated.

• Only add the areas of the top rectangles.

• Only add the areas of the bottom rectangles

The first step is​ (a)   . The second step is​ (b)   . The third step is ​ (c)   . The last step is ​ (d)   .

• to decompose or break the factors
• to draw and label my rectangles.
• to calculate the area of each rectangle
• to add all the areas together