Chapter 4-4 "Use Models to Multiply"

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 3 x 4 means adding 3 four times: 3 + 3 + 3 + 3 = 12.

Front

What is a partial product?

Back

A partial product is the result of multiplying a single digit of one number by the entire other number in a multiplication problem. It is used in the partial product method to find the final product.

Front

How do you use the area model to multiply?

Back

The area model involves breaking down numbers into their place values and creating a rectangle to represent the multiplication. Each section of the rectangle represents a partial product.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac. It allows you to multiply a number by a sum by distributing the multiplication across the addends.

Front

What is the multiplication equation for 7 x 800?

Back

The multiplication equation is 7 x 800 = 5,600.

Front

How do you find the product of 3 x 45 using partial products?

Back

You can find the product by breaking it down: (3 x 40) + (3 x 5) = 120 + 15 = 135.

Front

What is an area model?

Back

An area model is a visual representation of multiplication that uses rectangles to show how numbers can be broken down into parts.

Front

What is the final step in finding the product using an area model?

Back

The final step is to add all the partial products together to get the total product.

Front

What does 7 x 8 equal?

Back

7 x 8 equals 56.

Front

What is the value of the partial product in area A if it is 1,200?

Back

The value of the partial product in area A is 1,200.