Computers use other algorithms than long multiplication when doing multiplication problems. They are much faster when dealing with really big numbers.

It's time to take it one step further: 3-digit numbers! Watch this video to see how long multiplication with 3-digit numbers work.

Practice long multiplication with 3-digit numbers on the next page.

Learn how to do the long multiplication method and how it works. Learn how lattice multiplication works and how to do mental math fast using the times tables.

Long Multiplication

Moving a digit to the left, from one place-value column to another.

The result of multiplying numbers together.

Useful Words