Scientific Notation Test Review

Add.

(2 x 10³) + (5 x 10⁵)

• 7 x 10²

• 10 x 10¹⁵

• 5.02 x 10⁵

• 1.0 x 10²

Tags

CCSS.8.EE.A.4

Subtract

(3 x 10³) - (5 x 10²)

• 2 x 10¹

• 2.5 x 10³

• 2.5 x 10²

• -2 x 10¹

Tags

CCSS.8.EE.A.4

Multiply:
(3.4 x 10⁵)(1.2 x 10^-3)

• 4.08 x 10^-8

• 4.8 x 10²

• 4.08 x 10²

• 4.08 x 10^-15

Tags

CCSS.8.EE.A.4

There are approximately 3.1 x 10⁸ people in the United States. If each person has 4.1 x 10¹ coins, how would you calculate how many coins are there altogether?

• Add

• Subtract

• Multiply

• Divide

Tags

CCSS.8.EE.A.4

The average person blink 2.88 x 10⁴ times a day. How many times does a person blink in year (365 days)? Write your answer in scientific notation

• 367.88 x 10⁴

• 1.0512 x 10⁷

• 1051.2 x 10⁴

• 3.6788 x 10⁷

Tags

CCSS.8.EE.A.4

There are approximately 3.1 x 10⁸ people in the United States. If each person has 4.1 x 10¹ coins, how many coins are there altogether?

• 271 x 10¹⁰

• 271 x 10⁹

• 271 x 10¹¹

• 271 x 10⁸

Tags

CCSS.8.EE.A.4

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

Is 9 x 10¹⁵ written correctly in scientific notation?

• Yes

• No - The coefficient is not between 1 and 9.9.

• No - It's missing the exponent.

• No - It's not being multiplied by the base of 10.

Tags

CCSS.8.EE.A.3

Is 7.25 x 10²³ written correctly in scientific notation?

• Yes

• No - It is missing the exponent.

• No - The coefficient is not between 1 and 9.9.

• No - It's not being multiplied by a base of 10.

Tags

CCSS.8.EE.A.3

How do you write 3,700,000,000 in scientific notation?

• 3.7 x 10⁹

• 3.7 x 10^-9