Approximation is the process of finding a value that is close to, but not exactly equal to, a specific number or quantity. It is often used in mathematics and science when exact values are difficult to obtain or unnecessary. For example, when measuring the length of an object, one might round the measurement to the nearest whole number for simplicity. In everyday life, approximation helps us make quick decisions. For instance, if a recipe calls for 2.5 cups of flour, one might use 2 or 3 cups instead, which is easier and still yields a good result. This practical approach allows for flexibility while maintaining accuracy within an acceptable range.