Cách sử dụng
A decimal is a way to show a small part of a number. It is written as a dot (.) between two numbers. For example, 2.5 is a decimal. It means 2 and a half, or 2 plus 0.5. We use decimals when we need to show a more precise amount than a whole number. For instance, if you go to the store and buy 1.5 kilograms of apples, it means you bought one whole kilogram and half of another. Decimals are used in many areas such as math, science, finance, and cooking. It's essential to know how to use decimals to understand and communicate concerning these topics effectively.