Solve each addition or subtraction problem, and type in the correct answer. Use the TAB and the SHIFT+TAB keys, or the mouse to move from problem to problem.
After adding or subtracting, and typing in answers for all 20 math problems on the quiz, check your answers. When you think they are all correct, press the 'Grade My Quiz' button. Your quiz grade will be
shown on the top right of the page. The answers with a check mark are correct. Those with an X are incorrect. The ones with an X will have the correct answers shown.
Look at all the problems with an X and make sure you understand how to get the correct answer. When you are ready to try it again, press the 'Give Me a New Quiz' button.