Question

Amanda is adding the numbers below.

What is the sum written in scientific notation?

Answer 1

8.2x10^20... you can only have 1 decimal place... when adding you keep the same # of decimal places as the # that has the least in the given operation

Answer 2

Do you mean 8.1?

Answer 3

Err 81? I don't know lol

Answer 4

So, is the answer 8.15x10^20?
That's the only answer in my choices that has a plain 20.

Answer 5

is the same as 8.2... I rounded, because you need only one decimal place

Answer 6

Oh okay. Thank you! So it is, 8.15^10^20?

Answer 7

yep :) unless you have an 8.2 in your choices

Answer 8

No I do not. But thank you very much! xoxo