Ways to break apart numbers to solve addition & subtraction equations in a fact family. In this lesson, Julia reviews the ways to make 10 and how we can use these ways to break apart numbers to solve ...

Students put all of their addition and subtraction skills together to solve equations. In this lesson, students put all of their addition and subtraction skills together to solve equations. Julia ...

An equation is a mathematical statement showing that two expressions are equal. The two expressions are linked with an equals symbol (=). The unknown variable (often the letter \(x\)) can take any ...

In the video above, the MinutePhysics team demonstrates how addition can be used to solve subtraction problems. It requires budding modular mathematicians to perform some simple subtraction, addition, ...

Jackson Ryan was CNET's science editor, and a multiple award-winning one at that. Earlier, he'd been a scientist, but he realized he wasn't very happy sitting at a lab bench all day. Science writing, ...