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

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 ...

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

Tape Diagrams: 2-Digit Addition and Subtraction | Grade 2 Special | 2m 20s Your child continues to use tape diagrams as a visual tool to solve word problems.

"Motion Math: Hungry Fish" helps young students practice addition and subtraction. A fish swims around in the water, swallowing numbers that float in bubbles.

New Study: You Probably Completely Ignore This Brilliant Problem-Solving Strategy The easiest way to solve tough problems is also the one we usually think of last.

These children showed considerable competence with all three kinds of problems, solving correctly 95%, 85%, and 75% of these problems, respectively. Almost two-thirds of the solutions of the problems ...