This math topic focuses on practicing the algebraic skill of calculating the difference of squares, specifically involving operations where one integers' power is zero (interpreted as 1). The problems involve evaluating complex fractional expressions without a calculator, where each fraction has a numerator calculated as the difference between a squared term and one, divided by a closely related integer in the denominator. This is a component of an advanced polynomials and quadratics unit. Each question provides a set of multiple-choice answers, requiring a precise calculation and understanding of polynomial algebra principles.