By Oram, Hiawyn, Schon, Nick, Collins Big Cat, Moon, Cliff
By David Kirkby
By Zoe Clarke, Ley Honor Roberts, Collins Big Cat
By Stuart J. Murphy, Brian Floca
By Henry Pluckrose
By David Rayner
By Caroline Bucknall
By John Wood, Rosemary Emanuel, Janet Crawshaw
By Jackman, John, John Jackman
By Andrew Brodie
By Gill Potter, Cherri Moseley
By School Mathematics Project
By Karen Bryant-Mole, Zul Mukhida
By Hilary Koll, Steve Mills
By Paul Broadbent
By Murray Brennan
By L.J. Frobisher
By Unidentified Author, Kent County Council
By Scottish Primary Maths Group SPMG
By Margaret Gronow
By Serena Alexander, David Hillard
By Ginn, Merttens, Ruth, Kirkby, David
By Diyan Leake
By CGP Books
By Levesley, Mark
By Debbie MacKinnon, Anthea Sieveking