Arrays

Front

What is an array?

Back

An array is a collection of items arranged in rows and columns.

Front

How do you find the number of rows in an array?

Back

Count the horizontal lines of items.

Front

How do you find the number of columns in an array?

Back

Count the vertical lines of items.

Front

What does the multiplication expression 2 x 3 represent in an array?

Back

It represents an array with 2 rows and 3 columns.

Front

What is repeated addition?

Back

Repeated addition is adding the same number multiple times, like 3 + 3 + 3 + 3.

Front

How can you represent an array with multiplication?

Back

You can use the format rows x columns, like 4 x 3.

Front

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

Back

16 items (4 x 4 = 16).

Front

What is the relationship between arrays and multiplication?

Back

Arrays can be used to visualize multiplication as groups of equal size.

Front

How can you check if your array is correct?

Back

Count the total items and compare with the multiplication result.

Front

What does the equation 3 x 4 = 12 mean in terms of an array?

Back

It means there are 3 rows of 4 items each, totaling 12 items.