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## Approximating Values

#### High School - HSN-Q.A.3

How Do You Go About Approximating a Value? Approximation takes a crucial place in mathematics. Approximating a value is the act or a process of finding/calculating a value that is considered acceptable or close to an exact value. This value is then called approximate value, and the act/process is called approximation. In scientific experiments and engineering, approximation has always played a key role because it is always almost impossible to find the exact answer to a certain value. There is always a need to approximate value because it is impossible to make accurate measurements and also because certain numbers are difficult to express in decimal notation. For such cases, approximations are used. For example, if you have to approximate decimal or irrational numbers, such as pi that are nonterminating or nonrepeating decimals, the number 3.1415926 can be approximated to 3.14 or 3.1416 and so on until the desired accuracy is reached. The method of approximation is not merely limited to problems or simple numbers. It is also used for complex mathematical concepts. These are widely used in graphs and calculating the value of a function also. These worksheets and lessons help students understand how to identify an value that is acceptably close to an expected value.

### Printable Worksheets And Lessons  