Watch the video to learn about adding and subtracting with negative numbers on a number line and by using number discs. Adding and subtracting with negative numbers. Let's talk about two ways to help ...

Please note: This item is from our archives and was published in 2002. It is provided for historical reference. The content may be out of date and links may no longer function. To help readers follow ...

Explore the fascinating history of negative numbers from ancient times to Renaissance acceptance, highlighted in BBC Radio 4's program. In 1759 the British mathematician Francis Maseres wrote that ...