When you multiply a 3-digit number by a 1-digit number, the best way to do this without a calculator is to use short multiplication.

When you multiply a 3-digit number by a 1-digit number, the best way to do this without a calculator is to use short multiplication.

We all know you can add and subtract with your fingers, but if you're a little rusty on those multiplication tables, you can ...

Multiply Any Number by 11 in Seconds: Having the appropriate strategies may make math enjoyable and simple! One subject in which ...

David Harvey receives funding from the Australian Research Council. Around 1956, the famous Soviet mathematician Andrey ...