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How do we read and write numbers through hundreds of millions?
We do this by use of place value charts
What do we call each group of three digits separated by a comma in any given number?
It is called period.
Listen to this video. It gives a very good explaination on periods
The three periods we've talked about are...
Explain the periods in the number 360,400,295 from the greatest to the smallest
1. 627,384,873
2. 24,982,238
3. 484,712
Now let's switch over to forms in mathematics
Identify the standard form,word form and expanded form in the number 124,735,689
Standard form _ 124,735,689
Word form _ one hundred twenty-four million,seven hundred thirty-five thousand, six hundred Eighty-nine
Expanded form _ 100 000 000+20 000 000+4 000 000+ 700 000+30 000+5 000+600+80+9
Why is 'and' not used when writing in word for? because the word 'and' should only be used when you have a decimal
In what form is 872,263,459? It is in standard form
Now;
Write 871,632,954 in expande form
800 000 000+70 000 000+1 000 000+600 000+30 000+2 000+900+50+4
Write 459,362,781 in words
Four hundred fifty-nine million, three hundred sixty-two thousand, seven hundred eighty-one
Now show your staff...
Read and write the following numbers in two forms
1. Five hundred six million, fifteen thousand, three hundred seventy-eight
2. 802,062,543
3.900 000 000+10 000 000+2 000 000+500 000+60 000+4 000+300+70+8
1. Standard form _ 506,015,378
Expanded form _ 500 000 000+6 000 000+10 000+5 000+300+70+8
2. Word form _ eight hundred two million, sixty-two thousand, five hundred Fourty-three
Expanded form _ 800 000 000+2 000 000+60 000+ 2 000+500+40+3
3.Standard form _ 912,564,378
Word form _ Nine hundred twelve million,five hundred sixty-four thousand, three hundred seventy-eight
