Scientific Notation
•
Addition and Subtraction
(6.6 x 10
-8
) + (4.0 x 10
-9
) =
(3.42 x 10
-5
) – (2.5 x 10
-6
) =
7 x 10
-8
3.17 x 10
-5
(
Note that these answers have been
expressed in standard form)
