If it's your first time using a calculator, all the buttons and options can be a bit scary. But whether you're using a standard calculator or scientific calculator, the basics are pretty much the same. Once you learn what the buttons do...
Every calculator is different in how it deals with scientific notation, so you will need to read your calculator's instructions. If you do not have them or cannot understand them, Google the name and model of your calculator with the word "manual" or "instructions" to see other instructions.
The first 11 sections describe how to use the calculator and how to perform different types of calculations. Section 12 contains a calculator reference guide that you can refer to as needed for some of the main key sequences. This course is not an exhaustive list of all the calculator’s features.