Math fluency requires more than just memorizing facts and procedures, but also knowing how and when to use them.

Over the past two years, Strong has focused on what experts call “math facts.” Just as in language arts ... students are expected to also be able to do basic addition, subtraction, multiplication and ...

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

Children in the speed group answered more math facts correctly each day ... thinks it’s critical that children first understand conceptually what addition and subtraction mean and develop number sense ...

It's brilliantly odd math, provided by addition by subtraction. Math was never this fun in fourth grade. Nor this productive.

And while honeybees can't yet write out Einstein's general theory of relativity, new evidence suggests the clever little pollinators can perform simple addition and subtraction after a few math ...