Arrays 3rd grade

Front

What is an array?

Back

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

Front

How many columns does a 4 x 3 array have?

Back

3 columns.

Front

What does the first number in an array (like 4 in 4 x 3) represent?

Back

The number of rows.

Front

What does the second number in an array (like 3 in 4 x 3) represent?

Back

The number of columns.

Front

How can you create an array of 2 x 5?

Back

You can create it with 2 rows and 5 columns.

Front

If an array has 3 rows, how many items can it hold if each row has 4 items?

Back

It can hold 12 items (3 rows x 4 items).

Front

What is the total number of items in a 5 x 2 array?

Back

10 items (5 rows x 2 columns).

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 1 x 4 array?

Back

An array with 1 row and 4 columns.

Front

Can an array have the same number of rows and columns?

Back

Yes, for example, a 3 x 3 array has the same number of rows and columns.