The common-core math standards require that students learn the standard algorithm for multi-digit adding and subtracting—you know, the process in which you line the numbers up vertically to add or ...

Subtraction is a fundamental math skill that kids learn early in their academic journey. While it's a crucial building block for more complex arithmetic, the process of "taking away" can sometimes ...

You might also remember the photo of a check that went viral not that long ago — a man filled out a check to his son’s school by attempting to write the check amount in ten frames. There have been ...