Arrays

Front

What is an array?

Back

An array is a collection of items arranged in rows and columns.

Tags

CCSS.3.OA.A.1

Front

How do you identify the number of rows in an array?

Back

Count the horizontal lines of items.

Tags

CCSS.2.OA.C.4

Front

How do you identify the number of columns in an array?

Back

Count the vertical lines of items.

Tags

CCSS.2.OA.C.4

Front

What direction do columns go in an array?

Back

Columns go down, vertically, up and down.

Tags

CCSS.3.OA.A.1

Front

What does a 2 x 4 array mean?

Back

It means there are 2 rows and 4 columns.

Tags

CCSS.3.OA.A.1

Front

What does a 3 x 3 array look like?

Back

It has 3 rows and 3 columns, forming a square.

Tags

CCSS.3.OA.A.1

Front

If an array has 4 rows and 5 columns, what is its name?

Back

It is called a 4 x 5 array.

Tags

CCSS.3.OA.A.1

Front

What is the total number of items in a 3 x 5 array?

Back

15 items (3 rows x 5 columns = 15).

Tags

CCSS.2.OA.C.4

Front

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

Back

No, each row in an array must have the same number of items.

Tags

CCSS.3.OA.A.1

Front

What is the purpose of using arrays?

Back

Arrays help organize data in a structured way.

Tags

CCSS.3.OA.A.1