Match fun story problems with the correct addition or subtraction expression.

Fifth-graders will continue to deepen their understanding of addition, subtraction, multiplication, and division of fractions.

From classrooms to kitchen tables, debates about math education are never far away. Should teachers drill multiplication ...

The Common Core State Standards teach students the algorithm for multi-digit addition and subtraction in 4th grade. But some experts say it should be taught sooner.

The present paper describes the success, the methods (mental, informal written, standard algorithm) and the strategies of informal written arithmetic to be observed when 300 elementary students worked ...

We may see addition or subtraction as simple, but it requires different parts of our brain to store information and understand order.

This study examined Korean second and third graders' understanding of multidigit addition and subtraction and particularly their ability to explain the trading required when a column sum of the ...

The new theme is Addition and Subtraction, stories of humans becoming more and less and sometimes both with the help of technology.