In order to improve in Maths you will need to practice constantly and regularly. The video presents 5 questions a day. You can practise answering these questions over 5 days. Pause the video and try to answer the questions.
Before each question, take time to look up the formula or concept related to the question. This way you will get maximum benefit from the revision exercise. Write the formula or fact about the question on a piece of paper and continue to work out the answer showing full working. You should spend about 15 to 20 minutes on each set of questions.
After completing one set of 5 questions, note down the questions you were not able to answer and discuss this with your friends or refer to your teacher or tutor.
If you require more questions like these, please feel free to contact me.
Best of luck in your exams.