Count back & use the relationship between addition and subtraction to subtract within 20. Warm up with a Mystery Math Mistake to find the error in DC's addition. Use ...

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. Julia ...

Seems like budget cuts, staffing cuts and revenue cuts are all the rage these days. Perhaps more than ever, you and your team will be required to do more with less — much less of everything. At some ...

MELBOURNE, Australia (CNN) - Does math give you trouble? Here's some encouragement: Despite their miniature brains, a new study says honeybees can learn basic arithmetic. If they can do it, so can you ...

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 ...