The common-core math standards require that students learn the standard algorithm for multi-digit adding and subtracting—you know, the process in which you line the numbers up vertically to add or ...

In fourth grade, students focus most on using all four operations - addition, subtraction, multiplication, and division - to solve multi-step word problems involving multi-digit numbers. Fourth-grade ...

Lynda Colgan receives funding from The Ministry of Education for the Province of Ontario and The Mathematics Knowledge Network (KNAER). Queen's University, Ontario provides funding as a founding ...

The Common Core's approach to math has proved among the most contentious aspects of the controversial national teaching standards. In short, the new methods for addition and multiplication — namely, ...

Ever wanted to impress everyone by solving complex multiplication problems in your head, without needing a pencil or paper? It's not magic; it's mental math—a superpower you can learn! This article is ...