Learn how to add and subtract fractions whose denominators are not the same. Recall that when we want to add or subtract ...

You will learn how to add and subtract integers. We will work through adding and subtracting two integers up to multiple integers. We can look at adding and subtracting integers by looking at their ...

I’m a zero at mental arithmetic. It’s true—I struggle with this skill—but I want to focus on the phrase itself. In our language, we often equate zero with something negative. But zero is the only real ...

Welcome to a saner world where 0.1 + 0.2 = 0.3 and not 0.30000000000000004 ...

To break the ice during the first few awkward moments of class in the new school year, high school math teacher Lorenzo Robinson uses an unusual strategy: He reads his students’ minds. Here’s how the ...

Have you ever sat in a math classroom and wondered, “When will I ever use this?” You might have asked yourself this question when you first encountered “imaginary” numbers, and with good reason: What ...

We may take for granted that our children will inevitably learn how to add, subtract, multiply and divide, but early math lessons establish the base for the rest of their thinking lives. “Mathematics ...