Estimation and mental computation 1986 yearbook

Manylion Llyfryddiaeth
Awdur Corfforaethol:	National Council of Teachers of Mathematics
Awduron Eraill:	Schoen, Harold L., Zweng, Marilyn 1932-
Fformat:	Llyfr
Iaith:	Saesneg
Cyhoeddwyd:	Reston, VA NCTM c1986.
Cyfres:	Yearbook / National Council of Teachers of Mathematics 1986
Pynciau:	Problem solving. Estimation theory. Mental arithmetic.