This banner goes though the steps how to add and subtract decimals using the acronym L.A.B.S. This is a great visual for the students to see to remind them that they need to line up their decimal points before they add or subtract.
L.A.B.S. stands for "Line up your decimal points," "Add in zeros," "Bring down your decimal point," and "Solve." If the students remember to go through those steps before they attempt to solve the problem, they have a minimal chance of making mistakes. There are two sets, one for addition and one for subtraction. Both sets follow the same process.
You can use this product in multiple ways. I print each slide out on its own sheet of paper. The slides are in black and white so if you want to add color to it, I would print it out on colored card stock. I laminate them to make them more durable to last for all time. Finally, I stick magnets on the back to hang them on my white board. Because it is in a PowerPoint, you could choose to print out the slips on one sheet, and pass out to your students as notes.