Operating in Scientific Notation

Express the following in scientific notation:
10,030,400,000

• 1.00304 x 10⁹

• 1.00304 x 10¹⁰

• 1.00403 x 10¹⁰

• 1.00304 x10^-10

When writing a number in scientific notation, the first number must be greater than 1, but less than 10.

• False

• True

The US spends an average of 1.02x10⁴ dollars on each student per year.  There are about 7.6x10⁷ students in the US.  About how much money total is spent on students per year?

• 7.752 x 10¹¹

• 7.752 x 10²⁸

• 8.62 x 10¹¹

• 8.62 x 10²⁸

(7.7 x 10²) + (3.1 x 10²)=

• 8.8 x 10⁴

• 10.8 x 10²

• 1.08 x 10³

• 6.6 x 10²

Add using scientific notation.
(5.2 x 10⁷) + (3.01 x 10⁴)

• 5.20301 x 10¹¹

• 520301 x 10⁷

• 5.20301 x 10⁷

• 5.20301 x 10⁸

(8 x 10^-23) - (2 x 10^-25)

• 7.98 x 10^-23

• 6 x 10^-23

• 6 x 10^-25

• 7.98 x 10^-25

Multiply:

(4 x 10⁵)(5 x 10^-3)

• 20 x 10²

• 20 x 10^-8

• 2 x 10³

• 2 x 10

Solve:
(2.1×10​²​​) × (3.0×10​⁴)

• 5.1 x 10²

• 6.3 x 10⁶

• 5.1 x 10⁶

• 6.3 x 10⁸

(6 x 10⁶) / (2 x 10³)

• 12 x 10³

• 3 x 10⁹

• 1.2 x 10¹⁰

• 3 x 10³

(9 x 10^-6) (3 x 10^-3)

• 27 x 10^-9

• 3 x 10^-3

• 2.7 x 10^-8

• 2.7 x 10^-10