 Okay, so remember the rounding rules that we just went over and from the sound of it, it sounds like everybody remembered these from, like, fifth grade or whatever. So anyways, round each number to three significant figures, or three significant digits. So remember if it's zero to four, you just keep this number the same. So three significant digits, I guess we should say one, two, three, right? So all of these three are going to be examined to see if they're going to be in the number, right? So 61 definitely will be in there, decimal point will definitely be in there. And the four we've got to ask ourselves, well, is this next digit, is it five or above or below five? And it's below five, so this four is going to stay the same, okay? So the first two are definitely in it, 6.1, okay? But what about the seven? Well, just like we said earlier, if this is between zero and four, then this stays the same, and it is, so it stays the same. And then, remember, three sick babies, are these significant? No, because they're leading zeros. So one, two, three, so those three will all be examined. These two will definitely be in it, so let's draw this zero point zero, six, six, and then we have to ask ourselves, is this nine below five, and no, it's not, of course. So the four actually rounds up to a five, and since we just went over scientific notation, we're going to put these all in scientific notation too, but we'll do it on the next video. Okay? So any questions? Don't think so.