Helen mentions that she always struggled with arithmetic and found it to be the most uninteresting subject. Initially, Miss Sullivan taught Helen how to count by stringing beads together in groups, and Helen learned to add and subtract by arranging kindergarten straws. Later on, Helen visits Hulton, Pennsylvania, where Mr. Lions is able to help her with arithmetic. However, Helen mentions that she continued to randomly guess on the majority of math problems. Unlike other subjects, Helen finds math uninteresting and difficult to understand. Helen continues to struggle with mathematics and found it challenging to grasp algebra and geometry. Fortunately, Mr. Keith helps Helen overcome her obstacles in math, and she begins to comprehend algebraic and geometric concepts. While Helen is able to pass her math courses, she never excels in the area of mathematics like she does in other subjects.