By Vorderman, Carol
By Paul Broadbent, Broadbent, Paul
By Molly Potter
By David Hillard
By Askew, Mr Mike, Ebbutt, Sheila
By unkown
By Briten, Paul
By Richard Parsons, Parsons, Richard
By Morrison, Karen, Dunne, Lucille, Karen Morrison;Lucille Dunne
By Pearce, Stephen
By Askew, Mike
By Xingfeng, Huang, Real Shanghai Mathematics
By Clark, Julia V.
By French, Doug
By Naylor, S., Keogh, B, Dabell, J
By Simon Tudhope, Lizzie Barber
By Freiman, Viktor, Tassell, Janet Lynne
By CGP Books, CGP Books
By Helen Williams, Williams, Helen
By Tatto, Maria Teresa, Rodriguez, Michael C., Smith, Wendy M., Reckase, Mark D., Bankov, Kiril
By Scottish Mathematics Group