Adding and Subtracting Decimals

Today we start with the first of three decimal operations days.  We will cover two of the four on the first day, addition and subtraction. 

Here's the basic tip of the day: LINE UP THE DECIMALS

That's it, it's really that simple.  Of course you need to be able to perform the correct mathematical practices to get the correct answer. 

Think of it like the buttons on a shirt.