5 th Grade Math Chapter 11 Lesson 10 Convert Metric Units of Length

hello welcome to Chapter eleven lesson 10 will be doing convert metric units of length so we'll be learning about the metric system so the metric system is decimal system measurement measurement to convert metric units multiplier divided by powers of 10 so example one one of the largest recorded pythons measured seven and three tenths meters long what is the length of Python in centimeters so to convert seven and three tenths to centimeters when Meteor equals 100 centimeters so multiply is seven and three tenths by hundredths so if we do that we're gonna get seven hundred and thirty so it is seven hundred and thirty meters cent centimeters now the way I've been using is the conversion table and I'll go over it again so the first number we have to convert is seven and three tenths meters the number is gonna go on the bottom need need my meters to cancel so I'm gonna pick meters on on the bottom because if it's on top and bottom they cancel so one meter is in the equal 100 centimeters and my unit here is what my answer needs to be in so now my B's cancel and remember side to side means we multiply if his top and bottom it means divide so this turns into seven and three tenths times 100 equals seven hundred and thirty centimeters remember centi means hundred think milli means thousand so here's all of your units that we'll be using the units of length so one centimeter equals ten millimeters one meter cuz 100 centimeters or thousand millimeters and one kilometer equals thousand meters have to double check what Meili means because know kilo think kilos thousand but moving on example to find the length in centimeters to roshanda has 50 Domino's each Domino's is 4 centimeters long she lines him up she lined him up end to end as shown how many meters long is line of dominoes so we have 50 Domino's in the 4 centimeters long so we know we're working with 200 centimeters because 50 times 4 so we have to convert 200 centimeters to meters so like using my conversion table 200 centimeters is the number I'm starting with on the bottom need to have centimeters because mean and I'm converting it to meters so know 100 centimeters equals 1 meter so that means this is going to equal 200 meters divided by 100 which equals 2 meters now going back to the example since 1 meter equals 100 centimeters divided 200 by 100 equals 2 so 200 centimeters equals 2 meters so line of 50 Domino's is 2 meters long so go ahead and try the guided practice so here's the kind of practice and the one thing would like to point out is I'd rather use my the conversion table because that way you don't have to remember anything you really don't have to remember the units you just need to know we remember where things are placed first box is your original problem the bottom box is your your cancellation of the units in your top box is the unit in the dance who needs to be in but that's the end of the video so thank you for watching