Arrays

Front

What is an array?

Back

An array is a way to organize a group of items in rows and columns.

Tags

CCSS.3.OA.A.1

Front

How do you count items in an array?

Back

You count items in an array by counting each row and each column.

Tags

CCSS.2.OA.C.4

Front

What is the first row in an array?

Back

The first row is the top row of the array.

Tags

CCSS.3.OA.A.1

Front

What is the last column in an array?

Back

The last column is the rightmost column of the array.

Tags

CCSS.3.OA.A.1

Front

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

Back

Multiply the number of rows by the number of columns.

Tags

CCSS.3.OA.A.1

Front

What does it mean to 'arrange' items in an array?

Back

To arrange items means to put them in a specific order in rows and columns.

Tags

CCSS.2.OA.C.4

Front

Can an array have different numbers of items in each row?

Back

No, all rows in an array must have the same number of items.

Tags

CCSS.3.OA.A.1

Front

What is a 2D array?

Back

A 2D array is an array that has two dimensions: rows and columns.

Front

Give an example of an array with 2 rows and 3 columns.

Back

An example is: Row 1: A, B, C; Row 2: D, E, F.

Tags

CCSS.3.OA.A.1

Front

What is the purpose of using arrays?

Back

Arrays help organize data so it is easier to understand and use.