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What are the rules of significant digits?

April 26, 2017digits Mathematics rules SIGNIFICANT

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What are the rules of significant digits?

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Significant figures show us how certain we are of a number. When we add or subtract two numbers, the answer has the same number of decimal places as the number with the least decimal places. ex. 2.334 + 4.635243748 = 6.970 (2.334 has 3 decimal places where 4.635243748 has 9 decimal places so, the answer will have 3 decimal places) when multiplying or dividing numbers, the answer is limited by the smallest number of digits. ex. 4.3179 * 3.61 = 15.6 (4.3179 has 5 numbers in it where 3.61 has 3 numbers in it so, the answer will have 3 numbers in it) the answer to your question is 2.34 * 24.56 is 57.