Multiplying using Area Models and Partial Products

Front

What is an area model in multiplication?

Back

An area model is a visual representation of multiplication that breaks down numbers into their place values to show how to multiply them using rectangles.

Tags

CCSS.4.NBT.B.5

Front

What are partial products?

Back

Partial products are the results of multiplying each digit of one number by each digit of another number, before adding them together to get the final product.

Tags

CCSS.4.NBT.B.5

Front

How do you use an area model to multiply 43 x 37?

Back

Break down 43 into 40 and 3, and 37 into 30 and 7. Create a grid and calculate the areas: 40x30, 40x7, 3x30, and 3x7, then add the partial products.

Tags

CCSS.4.NBT.B.5

Front

What is the first step in using an area model for multiplication?

Back

The first step is to break down each number into its place values.

Tags

CCSS.4.NBT.B.5

Front

If you multiply 40 by 30, what is the partial product?

Back

The partial product is 1200.

Tags

CCSS.4.NBT.B.5

Front

What is the sum of the partial products 5600, 160, 420, and 12 for 72 x 86?

Back

The sum is 6000.

Tags

CCSS.4.NBT.B.5

Front

What does the area labeled 'A' represent in an area model for 43 x 37?

Back

Area 'A' represents the product of the tens place of both numbers, which is 1200.

Tags

CCSS.4.NBT.B.5

Front

How do you check if a multiplication problem is solved correctly?

Back

You can check by adding the partial products together and comparing the sum to the original multiplication result.

Tags

CCSS.4.NBT.B.5

Front

What is the partial product for the multiplication of 3 and 12?

Back

The partial product is 36.

Tags

CCSS.4.NBT.B.5

Front

What is the purpose of using area models in multiplication?

Back

Area models help visualize the multiplication process and understand how numbers are broken down into parts.

Tags

CCSS.4.NBT.B.5