Question

How do you write `12.13+1.5` in scientific notation?

Answer 1

`1.213 xx 10^1 + 1.5 xx10^0`

Explanation:

You would not really want to use scientific notation in this case - it is intended for very large or very small numbers.

But anyway, here it is:

`1.213 xx 10^1 + 1.5 xx10^0" "larr` the powers of 10 are different.

If you do want to add them, the powers must be the same:

`=1.213 xx 10^1 +0.15 xx 10^1" "larr` now you can add them:

`=1.363 xx 10^1`