In this video, students will learn how to add and subtract decimal numbers easily by following one golden rule: line up the decimal points! Using relatable examples like buying snacks or helping at a shop, the lesson explains how to add and subtract decimals just like whole numbers—while making sure tenths and hundredths stay in their proper place. The video also shows how to handle numbers with different decimal places by adding zeros when needed. A worksheet and full test are included to help learners practice and prepare with MCQs, fill-in-the-blanks, matching, and word problems. It’s perfect for concept building and exam prep!