A generator math exercises for students of secondary and higher

Pyromaths
Free
Offline
http://www.pyromaths.org/

Pyromaths is a math worksheet generator of French education (corresponding to 6th grade, 1st, 2nd and 3rd of ESO in Spain). The exercises are generated in LaTeX format, so you need to install LaTeX distribution as MiKTeX to generate PDFs. You need to also install Asymptote.