This math topic focuses on developing skills in long division, specifically handling two-step problems without remainders and identifying differences. Each question presents a mini problem where a number is subtracted from another, and then the next digit is brought down, challenging students to calculate what remains correctly. The options given are multiple choice, allowing learners to select their answers from a list. For added clarity on the problems, illustrations are included with each question. These exercises are a part of broader practice on long division techniques.