What is 435 billion in scientific notation?

Answer 1

First write it out.

435 billion is 435,000,000,000

Now put a decimal at the end (as long as one did not exist already)

435,000,000,000.

Now move that decimal till it is after the first digit and count how many spots you just moved it.

4.35000000000 (moved 11 spots)

so now we do this

4.35 x 10^11

x 10 ^ k is how you write scientific notation the k is the number of spots you moved it.

More explanation is needed for decimals but you didn't ask for that - so save that for another time.

So, answer to your question 4.35 x 10^11 or on your calculator it may appear 4.35E11