Arrays Repeat Addition

Front

What is an array?

Back

An array is a way to organize objects in rows and columns.

Front

What does repeated addition mean?

Back

Repeated addition means adding the same number several times.

Front

How can you represent an array using repeated addition?

Back

You can represent an array by adding the number of items in each row.

Front

If an array has 4 rows of 5, what is the repeated addition sentence?

Back

5 + 5 + 5 + 5 = 20.

Front

What is the multiplication sentence for an array with 3 rows of 4?

Back

3 x 4 = 12.

Front

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

Back

Multiply the number of rows by the number of columns.

Front

What is a row in an array?

Back

A row is a horizontal line of items.

Front

What is a column in an array?

Back

A column is a vertical line of items.

Front

If an array has 6 columns and 2 rows, how many items are there?

Back

There are 12 items (6 x 2 = 12).

Front

What does it mean if an array is rectangular?

Back

It means the number of rows and columns are different.