 For our first example, we're going to take a look at 50 degrees Celsius, converting that into a temperature in Fahrenheit. The basic equation we have for converting Celsius to Fahrenheit is 9 fifths the temperature in Celsius plus an offset of 32 degrees Fahrenheit. And this 9 fifths is 9 degrees Fahrenheit for every 5 degrees Celsius in terms of the scale size of those. So what we do is we start by actually plugging in our temperature in Celsius. So 9 fifths of 50 degrees plus our offset of 32 degrees. Well the 9 fifths of 50 degrees Celsius gives us 90 degrees Fahrenheit. It changed from Celsius to Fahrenheit because again, these were our scale relationships of 9 degrees Fahrenheit for every 5 degrees Celsius. And we still have our offset of 32 giving us a final answer of 122 degrees Fahrenheit. For a second example, we'll look at a starting temperature in Celsius of minus 12 degrees. And we want to find that out in Fahrenheit. Again, we're going to start with the same relationship. Plug in our number making sure we're plugging in negative 12. 9 fifths of negative 12 gives us a minus 21.6 plus our 32 degree offset. And that gives us a final temperature of 10.4 degrees Fahrenheit. When you're doing calculations like this where we don't have nice even numbers like we did in the first example, make sure you keep your decimal point. Now the 32 is actually a definite point there. So it's 32.000 whatever. We don't have to worry about significant digits.