Choosing a career as a government employee can be very rewarding. But before you begin your job, you will find you must take a Civil Service exam. Civil Service exams require that candidates score well on all parts of the exam, but the math section can be especially daunting if it has been a long time since you have used your math skills. By making the commitment to practice for the math section of the Civil Service exam, you are promising yourself increased scores and marketability.