Subtract within 1000 using various representations, strategies, and algorithms. Warm up with a Mystery Math Mistake to find a mistake made in using an algorithm for addition and subtraction ...

Decompose numbers to subtract. Engage in a Number Talk focused on subtraction strategies.

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

Math is currently being taught in a way most people over the age of 30 may not understand. It doesn’t take anything more than a multi-step subtraction problem to result in a wide spectrum of ...

In a study of college students, high levels of anxiety about taking mathematics tests interfered with memory processes needed to perform difficult arithmetic problems.

In first and second grade, female teachers’ insecurity with numbers may correlate to some girls’ doing poorly in math.

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 ...

Color-coded math problems In experiments, the team trained the animals to recognize the colors blue and yellow as symbols for adding or subtracting by a factor of one.

Letters to the Editor: Subtract the shame from learning math. Add affirmation and hope A student works on problems during a 12th-grade math class at Roybal Learning Center in Los Angeles in 2019.