The place-value system was made popular in Europe by the famous mathematician Fibonacci.

When adding large numbers together, you learned how to carry digits. Now you will learn to carry digits in long multiplication.

Practice long multiplication with carrying 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