Multiplication: Equal Groups and Arrays

Front

What is multiplication?

Back

Multiplication is a way to add the same number many times. For example, 3 times 4 means adding 4 three times: 4 + 4 + 4 = 12.

Front

What are equal groups?

Back

Equal groups are groups that have the same number of items in each. For example, if you have 4 groups of 2 apples, each group has 2 apples.

Front

What is an array?

Back

An array is a way to arrange objects in rows and columns. For example, 3 rows of 4 apples make an array of 12 apples.

Front

How do you write a multiplication sentence?

Back

A multiplication sentence shows how many groups of a number there are. For example, 4 groups of 3 can be written as 4 x 3.

Front

What does 6 x 5 mean?

Back

6 x 5 means you have 6 groups of 5. It equals 30.

Front

What is repeated addition?

Back

Repeated addition is adding the same number over and over. For example, 3 + 3 + 3 is the same as 3 x 3.

Front

How can you use multiplication to find the total number of items in equal groups?

Back

You can multiply the number of groups by the number of items in each group. For example, if there are 5 groups of 2, you do 5 x 2.

Front

What is the difference between 6 x 6 x 6 and 3 x 6?

Back

6 x 6 x 6 means multiplying 6 by itself three times, which equals 216. 3 x 6 means 3 groups of 6, which equals 18.

Front

What is a strip diagram?

Back

A strip diagram is a visual way to show how numbers are grouped. It helps to understand multiplication and division.

Front

How do you find the total number of items in an array?

Back

To find the total in an array, multiply the number of rows by the number of columns. For example, 4 rows of 3 equals 12.