Question

Perform the following operation

and express the answer in
scientific notation.
3.60x10-12 + 3.60x10-11

Answer 1

36-12+36-11
24+25
= 49

Answer 2

3.60X10^-12 is equal to 0.360X10^-11 (move decimal one place left)

Now you can add 3.60X10^-11 and 0.360X10^-11:

3.60X10^-11 + 0.360X10^-11 = 3.96X10^-11

You're really just adding 3.60 to 0.36 since the "X10^-11" is the same for both.