The back to school season means more opportunities for students to participate in engaging and challenging math competitions. Math competitions are beneficial for students of all ages and levels.

Add Yahoo as a preferred source to see more of our stories on Google. Emily Osorio-Hernandez, 6, writes numbers for a math assignment at Esperanza Elementary School in 2019. (Los Angeles Times) ...

Have you ever tried to add or subtract fractions that have different denominators? It’s tricky, right? Join Ms. Susanna Post in this lesson to learn how to solve these types of challenging problems!

My last column introduced the concepts underlying BCD (binary-coded-decimal) representations. In particular, we considered unsigned versus 10s-complement versions of BCD numbers. In this column we are ...