Scientific Notation Multiply and Divide and Write

To multiply amounts in scientific notation, you can simply _______ the decimals and _______ the exponents.

• multiply...add

• add...add

• multiply...subtract

• multiply...multiply

To divide amounts in scientific notation, you can simply _______ the decimals and _______ the exponents.

• divide...subtract

• subtract...subtract

• divide...add

• divide...divide

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

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. How much you calculate the average debt per person?

• Add

• Subtract

• Multiply

• Divide

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

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

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

• Multiply them

• Add them

• Keep them the same

• Make them equal

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

When dividing numbers in scientific notation, what do you do to the exponents?
For example:
(4×10⁵) ∕ (3×10²)

• Add them

• Subtract them

• Keep them the same

• Divide them

Solve:
(6 x 10⁶) / (2 x 10³)

• 12 x 10³

• 3 x 10⁹

• 1.2 x 10⁴

• 3 x 10³