Numbers are symbols we use to represent quantities or values. They help us count, measure, and compare things in our everyday lives. For example, when we say there are three apples on a table, the number three tells us how many apples we have. Numbers can be whole, like one or ten, or they can be fractions, like one-half or three-quarters. In addition to counting, numbers are essential in many fields, such as science, finance, and engineering. They allow us to perform calculations, analyze data, and solve problems. For instance, when we calculate the total cost of items in a shopping cart, we use numbers to ensure we have the right amount of money.