Learn how to multiply 2-digit numbers mentally with this step-by-step guide for kids. Discover simple techniques to boost calculation speed, improve mental math skills, and build confidence for ...

In this KS2 Maths article you’ll learn how to use short multiplication to multiply a 3-digit number by a 1-digit number. We also have a KS2 Maths quiz and lots of examples.

This Maths article explains both the mental method and written method for multiplying a 2-digit number by a 1-digit number.

The Schönhage-Strassen method is very fast, Harvey says. If a computer were to use the squared method taught in school on a problem where two numbers had a billion digits each, it would take months.

Mathematicians have reportedly discovered a new way of multiplying two numbers together. The new technique is for really large numbers, and if it passes a peer-review, could be the fastest ...