Mental Math in the Primary Gradesby Jack A. Hope; Larry Leutzinger; Barbara J. Reys; Robert E. Reys

✍ Scribed by Review by: Dana S. Adams

• Book ID: 125106676
• Publisher: National Council of Teachers of Mathematics
• Year: 1990
• Weight: 315 KB
• Volume: 37
• Category: Article
• ISSN: 0004-136X
• DOI: 10.2307/41194575