Before taking the first part of the GED math test, the test administrators will issue you a Casio fx-260 calculator and allow you a few minutes to test and get used to it. However, using this calculator even before that when you are studying for the test and taking practice GED math test will give you a greater edge. You will already know the locations of all the keys that you will need and how to use them. Remember, though, that for half of the test you will not be able to use a calculator, so try not to become too dependent on it by making sure that everything you can do on the calculator you can still also do by hand.
This is what the calculator looks like:
You don’t need to worry about many of the keys on this calculator. The keys that you should be familiar with (besides the basic keys that are self-explanatory) are explained in the image below:
Using this calculator is pretty straightforward and after playing around with it for a little bit you should be able to do everything you will need to on the GED math test. Some of the functions you might be less familiar with on this calculator are explained below.
Push the fraction key before every number that is part of a fraction.
A crew of painters can paint an entire apartment in 4 ½ hours. How much of the apartment can they paint in 2 ½ hours?
Since you want to know what percent 2 ½ is of 4 ½ you divide 2 ½ by 4 ½, so on the calculator you enter:
You should get 5/9 and on your calculator display it will look like this:
Push before the numbers in parentheses and after the numbers in parenthesis.
Find: 41(124 ÷ 4) – 21
On the calculator enter:
You should get 1250.