Arrays

Front

What is an array?

Back

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

Tags

CCSS.3.OA.A.1

Front

How many rows are in this array?

Back

Rows are the horizontal lines in an array.

Tags

CCSS.2.OA.C.4

Front

How many columns are in this array?

Back

Columns are the vertical lines in an array.

Tags

CCSS.2.OA.C.4

Front

What direction do rows go?

Back

Rows go across.

Tags

CCSS.3.OA.D.9

Front

What direction do columns go?

Back

Columns go up and down.

Front

What is repeated addition?

Back

Repeated addition is adding the same number multiple times.

Tags

CCSS.2.OA.C.4

Front

How can you represent an array with repeated addition?

Back

You can write a repeated addition sentence that shows how many times to add a number.

Tags

CCSS.2.OA.C.4

Front

If an array has 3 rows and 4 columns, how many total items are there?

Back

3 rows x 4 columns = 12 items.

Tags

CCSS.3.OA.A.1

Front

What does it mean if an array is rectangular?

Back

A rectangular array has different numbers of rows and columns.

Tags

CCSS.4.NBT.B.6

Front

What is a square array?

Back

A square array has the same number of rows and columns.

Tags

CCSS.4.NBT.B.6