Hartismere School

An outstanding coeducational secondary school and sixth form college

Please be aware that our main internet connection is not working and we are currently using a much slower backup line.

Speed addition


Learn the secrets required to quickly add numbers in your head. This technique ( called jumping 10's) programs your brain to visualize numbers so you can quickly and accurately add them in your head. The video goes with the the FreeTestPrep.net speed math class. Visit the website for the entire class!
Human Calculator series.