# Difference Between Trailing Zeros in Significant Digits

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The difference between trailing zeroes in significant digits falls into a few key areas. Find out about the difference between trailing zeroes in significant digits with help from an experienced math professional in this free video clip.

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## Video Transcript

Hi, I'm Charlie Kasov, and this is the difference between trailing zeroes in significant digits. Now, significant digits in trailing zeroes are not that complicated but they're weird. So for example if I measured something and it weighed 3.432 milligrams, and I didn't want to express it as 3.432, I could round it to 3.4 milligrams or I could say 3.400 milligrams. Now these two zeroes are the trailing zeroes. They're obviously not adding value to the number, but they're showing everyone else that I decided I got a three decimal measurement and I wanted to round to one decimal. So, if I took a measurement and weighed 3.52 milligrams, and I expressed it as 3.50 milligrams, there's only one trailing zero in a significant digit, and it is a zero here in the hundredths place to replace the two. So, when I had all the way to the thousandths place, I have two trailing zeroes, when I go to the hundredths place I decided to put one trailing zero. And that's the difference between the trailing zeroes.

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