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 ...

Microsoft Excel is a powerful spreadsheet program that can be used for a variety of tasks, including basic math. Here's how to use Excel as a calculator to perform basic arithmetic operations such as ...

An operation is a mathematical process. Common examples are addition (+), subtraction (-), multiplication (x) or division (÷). An inverse operation is the opposite of the operation used in the ...