Question: how do you write 12 billion in scientific notation?
Answer: 12,000,000,000. And this is how you would write 12 billion with letters only:
Twelve billion. If you take apart 12 billion and turn it into millions you get:
12 billion = 12,000 million. If you type in 12 billion on your calculator, it may come out as a scientific notation of:
1.20E+10 (1.20 x 1010)