MATT: Welcome to The Maths Show with meMatt Parker. Today we’re doing algebra,specifically negative numbers. Nownegative numbers can be quite tricky, infact for a long time mathematiciansrefused to ...

What are positive and negative numbers? Any number above zero is a positive number and any number below zero is a negative number. Learn about positive and negative numbers and number lines. How to ...

On the road to algebra, children must learn a weird idea: that numbers can be smaller than zero (negative) and can be mixed with numbers greater than zero (positive) in an equation. Now researchers at ...