You are expected to answer questions in each lesson node. Some questions may require you to type in your answer. To minimize errors that may cause your answers to be marked incorrect, here are a few tips. First, check that your spelling and vocabulary are correct. If you spell it wrong, it is incorrect. Second, only use the word or words required. Do not write a sentence inside a sentence.

Some questions may require you to enter a number. Pay attention to the format the question specifies.  

If the question tells you to enter a number rounded to two decimals and you input the exact answer instead, your response will be marked incorrect. 

Some questions may require an exact answer. For these questions, use the Quick Access menu along with the bottom tabs on the question input box to enter your answer in the correct format. If you round your answer instead of providing the exact form, your answer will be marked incorrect.