To add and subtract numbers always begin counting from zero. When adding positive numbers, count to the right. When subtracting positive numbers, count to the left.
A GCSE Maths video about adding and subtracting with negative numbers. The video shows how to use a number line and how to work out the answer by using number discs.
Results that may be inaccessible to you are currently showing.
Hide inaccessible results
Feedback