 So let's try this first significant digits or significant figures problem so Well tell how many significant figures there are in each of these numbers so Remember zeros are the things that Get people confused of course If you remember if you've got a decimal point in your number Like this one does here a does three point four zero zero then that means all of the Zeros after the first non-zero number are significant So you see here. We've got two non-zeros, which definitely are significant And of course we've got two zeros after the decimal place. So that means they're significant too So how many significant digits do we got pull? um captive zeros Are the same thing? They're significant why because they're in between two non-zero digits so we've got a Three and a four which are definitely significant and two zeros which are quote-unquote adaptive So they are significant. So we've got four a total of four significant digits And then remember the rules with trailing zeros okay so this number 300 here is actually Only got one significant digit why because there's no decimal point in this so Right so remember trailing zeros are only significant if there's a decimal point in that number if There's not a decimal point in that number so in other words if we did something like this That's one point that would actually have three significant digits. So make sure you realize the difference between these So sometimes you can get tricked pretty easily. So we'll try another one of these and See if you guys get it hopefully you do