Speed math : subtraction and division /
Lacsamana-Jensen, Paz A.
Speed math : subtraction and division / Paz A. Lacsamana-Jensen. - Pasig City : Anvil Pub., 2006. - 167 p.
Includes bibliographical references.
9789712717888
Arithmetic -- Problems, exercises, etc.
Arithmetic.
Speed math : subtraction and division / Paz A. Lacsamana-Jensen. - Pasig City : Anvil Pub., 2006. - 167 p.
Includes bibliographical references.
9789712717888
Arithmetic -- Problems, exercises, etc.
Arithmetic.