Question

What is the value of the expression
(
7.0
×
10
3
)
+
(
25.0
×
10
2
)
in scientific notation?


9,500


95
×
10
2


9.5
×
10
3


0.95
×
10
4

Answer 1

Compute each term: 7.0×10^3 = 7000 and 25.0×10^2 = 2500. Their sum is 9500. In proper scientific notation that is 9.5×10^3.