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How to Solve Significant Figures

Significant figures play a very important role in mathematics and other fields of science because these significant figures are very much important while in term of finding the measurements and other rare values. Significant figures are being the digits/value of the number which is accurate and up to the mark without any mistake. The number 16.4 is said to have 3 significant figures. The number 19.60 is said to have 4 significant figures. Significant figures are a shorthand way to express how certain one is about one's data and calculations coming from that data. While significant figures are by no means as precise as detailed calculations of the uncertainty of value, they are a very useful way to estimate uncertainty quickly. In schools among kids the role of the significant figures is very much because the kids should have to learn from the base that how to solve the significant figures by applying these easy rules given below can easily learn and quit enough will be able to solve the significant figures quiet easily.

How to Solve Significant Figures in maths

Rules

There are certain rules and regulations through which you can easily solve the significant figures without any worry.

  • Firstly you can one thing in your mind that all the nonzero digits are been called as significant
  • You can call zero also the significant figure, while it has the decimal point with it

Example: Suppose we have a significant figure of 4010

Firstly we have to countdown the significant figures on the first nonzero digit, which you can say is the 4 from the above example, then we have to stop counting the significant figure on the last nonzero digit which you can see is being 1, as at the end there are 3 significant figures in the value 4010.

If you want to find the significant figures of the digit which has the decimal point had a different procedure for finding the significant figure. You can also calculate using sig fig calculator.

Example: Suppose we have the value 0.20310

The rule is very simple firstly we have to start counting the significant figure on the first nonzero digit which you can easily see is 2. Then we have to stop counting the significant figures on the last digit which you can see is 0. As the result in the end you can easily conclude that there are 5 significant figures in the value 0.20310.

Example

Let us suppose a number 93, the number of significant figures are 2, and the number which are significant are 9 and 3.

For a number 77.2, it has 3 significant figures, and the number which are significant are 7, 7, and 2.

For the number 0.001 it has 1 only significant figure, and the number of   significant figure is 1.

Let us suppose a number 52, the number of significant figures are 2, and the number which are significant are 5 and 2.

Let us suppose a number 69, the number of significant figures are 2, and the number which are significant are 6 and 9.



 
 
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