a) More Specific Topics in Adding and Subtracting Real Numbers. ... When you're combining numbers, there are some helpful rules to make that process a little easier.
b) Here are 29 slides from the PowerPoint presentation Subtracting Real Numbers. It takes only coupe minutes to customize slides changing visual parts and (or) inserting personal audio.
To see brief contents of this presentation, please, log in https://www.youtube.com/watch?v=krlUsn3ziIk&t=61s