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

Here's how to use Excel as a calculator to perform basic arithmetic operations such as addition, subtraction, multiplication, and division.

Here's how you can help your second-grader master the basics of math outside of the classroom.

Tape Diagrams: 2-Digit Addition and Subtraction | Grade 2 Special | 2m 20s Your child continues to use tape diagrams as a visual tool to solve word problems.

One of them is basic math. In a new study in Scientific Advances, scientists in Australia have shown that honeybees can add and subtract if trained to do so.