Significant figures are the number of digits in a value, often a measurement, that contribute to the degree of accuracy of the value. We start counting significant figures at the first non-zero digit.

This video teaches significant figures rules, crucial for measurements and calculations. It covers identifying significant digits, including non-zero digits, zeros in between, leading zeros, and trailing …

Arithmetic (all content) Course: Arithmetic (all content) > Unit 6 Lesson 14: Significant figures Intro to significant figures Rules of significant figures Multiplying and dividing with significant figures

Now that we have a decent understanding of how to figure out how many significant figures we're even dealing with, let's think about a situation where significant figures will or might become relevant.

Khan Academy ... Khan Academy

What are significant figures, and what determines how many significant figures we round our final answer to? Maybe they've already gone over it and I just don't remember.

Khan Academy Sign up

What was the pig's average velocity and average speed over this time? And assume rightwards is positive and leftwards is negative and round your answer to two significant digits. So, pause this …

And, let's see, just to get our significant digits here, our significant figures, out of all of the things we multiplied, see we had four significant digits here, four significant digits here, but we only had three …

You use scientific notation to express very large or very small numbers in a more condensed manner. Technically, we could all use this type of notation, as opposed to standard notation.