Multiplying and Dividing in Scientific Notation

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 in scientific notation, what do you do with the constants?

• Keep them

• Add them

• Multiply them

(2 x 10⁹)(4 x 10^-4)

• 8 x 10¹³
• 8 x 10³⁶
• 8 x 10⁵
• 8 x 10^-36

(5x10¹⁰) x (3x10⁷)

• 15x10¹⁷
• 1.5x10¹⁷
• 1.5x10¹⁸
• 1.5x9¹⁷

(9.6×10³) × (6.7×10²)

• 64.32×10⁵
• 6.432×10⁶
• 64.32×10⁶
• 64.32×10⁵

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

Solve:
(6 x 10⁶) / (2 x 10³)

• 12 x 10³
• 3 x 10⁹
• 1.2 x 10⁴
• 3 x 10³

Solve:

(20 x 10⁵⁰) / (4 x 10¹⁵)

• 2.4 x 10⁵¹

• 5 x 10⁶⁵

• 8 x 10⁶⁶

• 5 x 10³⁵

Which of these numbers are NOT in scientific notation?

• 1.2 x 10³
• 5.3 x 10⁹
• 2.0 x 10⁰
• 10 x 10²

What do you do to your exponents when you are dividing in scientific notation?

• Subtract

• Divide

• Multiply

• Add