Area Models & Arrays 2 digit by 2 digit multiplication

Front

What is an area model in multiplication?

Back

An area model is a visual representation of multiplication that shows how to break down numbers into parts to find the total area.

Front

What does 2-digit by 2-digit multiplication mean?

Back

It refers to multiplying two numbers, each with two digits, such as 23 x 45.

Front

What is a partial product?

Back

A partial product is the result of multiplying one part of a number by another number in a multiplication problem.

Front

How do you find the total area in an area model?

Back

You add all the partial products together to find the total area.

Front

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

Back

The first step is to break each number into tens and ones.

Front

If you multiply 11 by 29, what are the partial products?

Back

The partial products are 10 x 20, 10 x 9, 1 x 20, and 1 x 9.

Front

What is the total area for 14 x 14?

Back

The total area is 196.

Front

How do you calculate the earnings if you earn $15 for each of 23 jobs?

Back

Multiply 15 by 23 to find the total earnings, which is $345.

Front

What is the purpose of using arrays in multiplication?

Back

Arrays help visualize multiplication by organizing objects in rows and columns.

Front

What is the missing partial product in the area model for 11 x 29?

Back

The missing partial product is 90.