Significant figures: Today

Today, we will have a look at the Significant Figures , will discuss its definition, examples, rules and problems in detail and will also discuss Accuracy and Precision in calculations. Learn how to calculate the number of significant figures in a number using four basic rules and examples. Also, find out how to apply the rules for addition, subtraction, multiplication and division of significant figures . Learn how to identify and use significant figures in measurements, calculations, and approximations. Find out the rules, examples, and exceptions for determining the number of significant digits in a number. Significant Figures or Significant Digits are defined as the numbers that contain all certain figures and the first uncertain figure . For example, the length of an object is measured as 123.5m, here 1, 2, and 3 are certain digits and 5 is the uncertain digit, hence, Significant digits are 4 in this case.