Arrays

Front

What is an array?

Back

An array is a way to organize objects or numbers in rows and 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 row in an array?

Back

A row is a horizontal line of items in an array.

Front

What is a column in an array?

Back

A column is a vertical line of items in an array.

Front

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

Back

3 rows x 4 columns = 12 items.

Front

What addition equation does this array represent? X X X X X X

Back

3 + 3 = 6.

Front

How many rows are in this array? X X X X

Back

1 row.

Front

How many columns are in this array? X X X X

Back

4 columns.

Front

What does it mean to 'count by rows'?

Back

It means to count the items in each row before moving to the next row.

Front

What does it mean to 'count by columns'?

Back

It means to count the items in each column before moving to the next column.