the modem hi my name is Michelle Barnickel I am an

instructor here at Bossier Parish Community College I’ve been given

the task for this open campus to teach you how to do basic arithmetic in math 97 the first thing we do is

start out with words on place value so that is what

we’re gonna began our lesson with today and the first thing you see is our

heading this is price value that we will be discussing for the next few minutes in place value we talk about digits

digits are the numbers that we use to write anything throughout the day ever um then you have a group of numbers called whole numbers whole numbers include the digit 0 whereas if you notice the next set of

numbers will be natural numbers and they start at one and the difference is when you’re a

little kid you start counting with 1 I’m 2 I’m 3 you don’t start with

I’m 0 because little kids don’t understand the

concept of 0 so as you get older four five years old they start introducing in schools

the concept of zero and how it’s the empty set so that becomes a whole number not just

a natural number every digit has a name okay that indicates its position so that is place value which is what

we’re gonna talk about next on the screen you’ll see that this big number in each digit

represents a specific value okay so you have

different units and every time you see a comma it is consider what they call a period um in elementary school growing up that’s what was taught you

had the ones period thousands period millions billions trillions etcetera every period is separated by a

comma and in every period you have three different place values you have the

ones place which is now called the units you have

the tens and you have the hundreds so when you

get to thousand you have 1,000 10,000 100,000 then you have 1 million 10 million and 100

millions and in this specific number that you see on the screen it is $1 trillion $605 billion $743 million $891 thousand 412 now we’re gonna go to the board and we’re

gonna talk about the place value of each one of these underlined digits the

first number that we’re going to do is 748 K in the number 748 the 4 is the digit that is underlined so according to place value this is 4 tens that is four groups of 10 ok the next number is 2,034 and this 4 is underlined this 4 is in the ones or the units place then in this next number the digit that is

underlined is in the one millions place and the next one that four is in the hundred million hundred thousands place K and our last number this four this four is in the here’s ones period here is thousands this is millions and so next would be what billions so this is ten billion place okay now we’re going to write now we’re going to write a large four-digit number okay you can

only use the digits one time a piece and the biggest number would be if you

wrote the digits in order from the highest to the lowest

which would be 9,861 so if you read that number it

will be nine thousand eight hundred sixty one and then to make the smallest four-digit number you would do the opposite and put it from the smallest to

the largest so that would be 1,689 and that is all we’re going to do with place value today

so I have made up a little assessment for you to do on section 1.2 A and B so make sure that you watch the

second section before you take the little self quiz and good luck to you