Add Subtract Scientific Notation

By area, Russia is the largest country in the world. It has an area of 8.649 x 10⁶ square miles. Canada is second with 4.797 x 10⁶ square miles. What is the difference in area?

• 3.852 x 10⁶ square miles

• 3.852 x 10⁰ square miles

• 1.803 x 10⁶ square miles

• 1.803 x 10¹ square miles

Tags

CCSS.8.EE.A.4

On average, Mercury is about 5.7x10⁷ km from the sun, whereas Neptune is about 4.498x10⁹ km from the sun. What is the difference between Neptune’s and Mercury’s distances from the sun?

• 202 x 10⁸

• 3,928 x 10⁹

• 4.441 x 10⁹

• 4.441 x 10⁸

Tags

CCSS.8.EE.A.4

Write the answer in scientific notation.

5 x 10⁸ + 3.4 x 10⁸ =

• 8.4 x 10⁸

• 3.9 x 10⁸

• 8.4 x 10⁷

• 3.9 x 10⁷

Tags

CCSS.8.EE.A.4

(5.9 x 10⁷⁷ ) - (6 x 10⁷⁶ )

• 6.5 x 10⁷⁷

• 6.5 x 10⁷⁶

• 5.3 x 10⁷⁷

• 5.3 X 10⁷⁶

Tags

CCSS.8.EE.A.4

(5.9 x 10⁷⁷ ) + (6 x 10⁷⁶ )

• 6.5 x 10⁷⁷

• 6.5 x 10⁷⁶

• 5.3 x 10⁷⁷

• 5.3 X 10⁷⁶

Tags

CCSS.8.EE.A.4

(9.8 x 10^-467 ) - (2.3 x 10^-467 )

• 7.5 x 10^-467

• 7.5 x 10^-466

• 1.21 x 10^-467

• 1.21 X 10^-466

Tags

CCSS.8.EE.A.4

(9.8 x 10^-467 ) + (2.3 x 10^-467 )

• 7.5 x 10^-467

• 7.5 x 10^-466

• 1.21 x 10^-467

• 1.21 X 10^-466

Tags

CCSS.8.EE.A.4

What is the result of (3.5 x 10^2) + (2.1 x 10^3)?

• 4.3 x 10^3

• 1.8 x 10^3

• 2.45 x 10^3

• 5.6 x 10^2

Tags

8.EE.A.4

What is the result of (4.8 x 10^5) - (1.2 x 10^4)?

• 3.6 x 10^5

• 5.2 x 10^5

• 4.68 x 10^4

• 4.68 x 10^5

Tags

8.EE.A.4

What is the result of (5.2 x 10^3) + (3.9 x 10^2)?

• 5.59 x 10^2

• 8.1 x 10^3

• 9.1 x 10^2

• 5.59 x 10^3

Tags

8.EE.A.4