Scientific Notation Real World

Write the answer in scientific notation.

5.3 x 10⁵ + 3.7 x 10⁵ =

• 99.0 x 10⁵

• 9.9 x 10¹⁰

• 8.0 x 10⁵

• 9.0 x 10⁵

(3.6 X 10^-2) + (4.0 X 10^-1)= 

• 4.36 X 10^-1

• 4.36 X 10^-2

• 7.6 X 10^-1

• 7.6 X 10^-2

(2.6 × 10³) + (5.1 × 10³)

• 7.7 × 10³

• 7.7 × 10²

• 77 × 10³

• .77 × 10³

Simplify. Write each answer in scientific notation.

2.5 × 10¹ + 6.14 × 10⁴

• 6.1425 × 10⁴

• 6.1425 × 10⁷

• 6.1425 × 10¹⁰

• 6.1425 × 10¹³

(2.3 x 10²)+(4.1 x 10²)=

Write the answer in scientific notation.
9.9 x 10⁸ -   3.4 x 10⁸  =

• 2.4 x 10⁸

• 2.4 x 10⁰

• 1.6 x 10⁰

• 6.5 x 10⁸

Write the answer in scientific notation.
7.3 x 10⁵  +   3.7 x 10⁵  =

• 11.0 x 10⁵

• 1.1 x 10¹⁰

• 1.10 x 10¹¹

• 1.1 x 10 ⁶

When adding numbers in scientific notation, the powers of 10 must be the same.

• True

• False

Four countries displayed the number of houses that had internet service in scientific notation. Which orders the countries in descending order?

• Italy, France, United States, Spain

• United States, Spain, Italy, France

• Italy, United States, Spain, France

• United States, Italy, Spain, France

What is the simplified form of
(3.25 x 10³)(7.8 x 10⁶)

• 2.535 x 10¹⁰

• 2.535 x 10¹⁸

• 2.535 x 10¹⁹

• 2.535 x 10⁹