 Okay. Let's do this one then. So, I guess we can make up a question. So, if you've got these three items and you want to know what the total weight is to the correct number of significant figures, what would it be? So, how would we do that? What we would have to do is add these three numbers up and then go to the one with the lowest decimal point. So, in this case, what is the lowest decimal point? I guess what I mean is the least numbers after the decimal point, I should say. So, if we look here, this one has what, four after the decimal point? Does everybody see that? Probably does this one have after the decimal point? Zero. Zero. And this one? Two. Okay. So, how many would you go after the decimal point? Zero. Okay. So, let's add these things up. 34.4356 plus 105 plus 3.13. So, I get 142.5656. So, 42.5656. And like we said, grams. So, like we said, we're not going to use all of those numbers. We're going to cut it off and since this is higher than five, we're going to round up. 143. Remember the grams. Okay. So, remember when that was difficult for you guys? Okay. So, I'm real proud of you that you guys can do it now. Any questions on this one? Okay.