Q: Besides using a calculator, is there any way children can check long columns of numbers they have added? A: Actually, there is a fairly easy way to do this. It goes by the names of "digital roots" ...

Students put all their addition and subtraction skills together to solve equations. In this lesson, students put all their addition and subtraction skills together to solve equations. Julia begins ...

Your child continues to use tape diagrams as a visual tool to solve word problems. Your child continues to use tape diagrams as a visual tool to solve word problems. Now, he solves for an unknown in ...