Students put all of their addition and subtraction skills together to solve equations.

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

Under the common core, there are many ways to do subtraction—none of which involve borrowing and carrying.

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

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.