Arrays 3rd grade

Front

What is an array?

Back

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

Front

How many columns does a 4 x 3 array have?

Back

3

Front

What does 3 x 2 mean in an array?

Back

It means there are 3 rows and 2 columns.

Front

If an array has 5 rows and 4 columns, how many total items are there?

Back

20 (5 rows x 4 columns = 20 items).

Front

What is the first number in an array's dimensions?

Back

The number of rows.

Front

What is the second number in an array's dimensions?

Back

The number of columns.

Front

How can you represent the number 12 in a 3 x 4 array?

Back

By placing 12 items in 3 rows and 4 columns.

Front

If you have an array of 2 x 5, how many items are in each row?

Back

5 items in each row.

Front

What is the total number of items in a 6 x 2 array?

Back

12 (6 rows x 2 columns = 12 items).

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.