Simple Arrays

Front

What is an array?

Back

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

Tags

CCSS.3.OA.A.1

Front

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

Back

You can find the total by multiplying the number of rows by the number of columns.

Tags

CCSS.3.OA.A.1

Front

What does the number sentence 3+3+3 mean in relation to an array?

Back

It means there are 3 rows with 3 items in each row.

Tags

CCSS.2.OA.C.4

Front

If an array has 2 rows and 4 columns, how many items are there?

Back

There are 8 items (2 x 4 = 8).

Tags

CCSS.3.OA.A.1

Front

What is the total number of dots in an array with 5 rows and 3 columns?

Back

There are 15 dots (5 x 3 = 15).

Tags

CCSS.3.OA.A.1

Front

How can you represent an array with a number sentence?

Back

You can write a number sentence by adding the number of items in each row.

Tags

CCSS.2.OA.C.4

Front

What does the number sentence 4+4+4+4 mean?

Back

It means there are 4 rows with 4 items in each row.

Tags

CCSS.2.OA.C.4

Front

How many columns are in an array with 6 items in total and 2 rows?

Back

There are 3 columns (6 ÷ 2 = 3).

Tags

CCSS.3.OA.A.2

Front

What is the purpose of using arrays in math?

Back

Arrays help us visualize and organize numbers to make counting easier.

Tags

CCSS.2.OA.C.4

Front

If an array has 3 rows and 2 columns, how many items are there?

Back

There are 6 items (3 x 2 = 6).

Tags

CCSS.3.OA.A.1