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

What seemed like a regular grade school math problem had people totally stumped on social media. The equation 9 x 3 - 9 shared by @BholanathDutta on X left social media users completely mystified.

A learning/teaching approach used base-ten blocks to embody the English named-value system of number words and digit cards to embody the positional base-ten system of numeration. Steps in addition and ...

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 ...