Download or read book 1999 Abacus Year 3 / P4: Textbook Number 1 written by Ruth Merttens and published by Ginn. This book was released on 1999 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook allows independent practice of mathematical skills. It presents the concepts at an appropriate reading level. Activities with an investigative or process-skill focus encourage creative and mathematical thinking. Problem-solving is included.