Adding/subtracting polynomials - combining like terms — IITM BS previous year questions

Adding/subtracting polynomials - combining like terms is part of Algebra of Polynomials - Addition, Subtraction, and Multiplication, Week 4 in Mathematics 1. Prasnya files every IIT Madras BS previous year question from this subtopic here, each one with a worked explanation. Take the whole set as a timed mock and you get accuracy, pacing and per-question analysis back.