Scientific Notations Adding Subtracting Multiplying Dividing

When multiplying numbers in scientific notation, what do you do with the exponents?

• Multiply them

• Add them

• Keep them the same

• Make them equal

Tags

CCSS.8.EE.A.4

When multiplying numbers in scientific notation, what do you do to the leading numbers?
For example:
(4×10⁵)(3×10⁻²)

• Keep them the same

• Divide them

• Add them

• Multiply them

Tags

CCSS.8.EE.A.4

Give the sum in scientific notation.

(2.6 x 10⁶) + (4.2 x 10⁶)

• 6.8 x 10⁶

• 6.8 x 10¹²

• 8.4 x 10⁶

• 3.2 x 10¹²

Tags

CCSS.8.EE.A.4

Give the sum in scientific notation.

• 1.02 x 10⁸

• 1.02 x 10⁹

• 9.2 x 10⁸

Tags

CCSS.8.EE.A.4

In 2012, NYC’s population was about 8.1 × 10⁶ and Los Angeles' population was about 3.8 × 10⁶. What is the population of these two cities combined?

*THE FIRST FACTOR HAS TO BE BETWEEN 1 - 9.9

• 1.19 x 10^-7

• 1.19 x 10⁷

• 11.9 x 10⁶

• 1.19 x 10⁶

Tags

CCSS.8.EE.A.4

What is the simplified version of

• 3.9 x 10⁶

• 4 x 10²⁰

• 4 x 10⁶

• 3.9 x 10²⁰

Tags

CCSS.8.EE.A.4

Find the combined mass of Earth and Venus. Earth is approximately 5.9 x 10²⁴ kg and Venus is approximately 4.9 x 10²² kg.

• Add

• Subtract

• Multiply

• Divide

Tags

CCSS.8.EE.A.4

In the year 2000, the United States public debt was about 5.6 x 10¹² dollars. The population of the United States in that year was about 2.8 x 10⁸ people. What was the average debt per person?

• 2 x 10^-4

• 0.5 x 10^-4

• 5 x 10^-5

• 2 x 10⁴

Tags

CCSS.8.EE.A.4

What is the simplified version of

• 4 x 10^-6

• 4 x 10²⁰

• 4 x 10⁶

• 4x 10²⁰

Tags

CCSS.8.EE.A.4

Multiply. Give the product in scientific notation.

• 6.432×10⁵

• 6.432×10⁶

• 6.432×10¹

Tags

CCSS.8.EE.A.4