Question

Amanda is adding the numbers below. 3.7*10^20+4.45*10^20 What is the sum written in scientific notation?

Answer 1

the exponents are the same (10^20) so we add

(3.7+4.45) * 10^20 = ?

Answer 2

I dont know :(

Answer 3

3.7+4.45 = ?

Answer 4

8.15

Answer 5

is it 8.15*10^20?

Answer 6

^ yup that's the correct answer

Answer 7

thanks soo much can you help me with two more pliz

Answer 8

sure, post a new question

Answer 9

What is the quotient written in scientific notation?
3*10^20/4*10^5