you need a million thousand dollars bills to equal a billion dollars.
There are fifty million (50,000,000) 20 dollar bills in a billion dollars.
A billion is 1,000,000,000 and so (if there is a thousand dollar bill in circulation, I am not sure it is), then divide 1,000,000,000 by 1000 to get the number of bills which would be 1,000,000 which is a million
You need ten $100.00 bills to get a thousand dollars.
100 $20 bills
50 billion of them.
Nine thousand dollars.
1,000,000,000 / 5 = 200,000,000
There are 5000 dollar bills.