Multiply/Divide Scientific Notation Mini Quiz

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

• Keep them

• Add them

• Multiply them

Tags

CCSS.8.EE.A.4

When dividing in scientific notation, what do you do with the decimal numbers?

• Subtract them

• Keep them

• Divide them

Tags

CCSS.8.EE.A.4

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

• Multiply them

• Add them

• Keep them the same

• Make them equal

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

• Subtract them

• Divide them

• Keep them the same

• Make them equal

Tags

CCSS.8.EE.A.4

Multiply:
(9.4 x 10⁶)(3.2 x 10⁵)

• 30.08 x 10¹¹
• 3.8 x 10¹
• 3.008 x 10¹²
• 2.9375 x 10¹

Tags

CCSS.8.EE.A.4

Multiply:

(3.4 x 10⁵)(1.2 x 10^-3)

• 4.08 x 10^-8

• 4.6 x 10²

• 4.08 x 10²

• 4.08 x 10^-15

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

 $\frac{1.05\times10^{12}}{5\times10^4}$  

•  $0.21\times10^3$  

•  $2.1\times10^7$  

•  $0.21\times10^8$  

•  $2.1\times10^9$  

Tags

CCSS.8.EE.A.4

Light travels at a speed of 5.88 x 10¹² miles per year (called a light-year). It takes 2.04 x 10⁶ years for light to travel from the sun to the Andromeda galaxy. How far (distance) does it take light from the sun to the Andromeda galaxy?

• 1.2 x 10¹⁹

• 1.2 x 10¹⁸ miles

• 7.056 x 10²¹ miles

• 7.056 x 10⁷ miles

The mass of the sun is 1.989 x 10³⁰ kilograms. The mass of the earth is 5.98 x 10²⁴ kilograms. How many times bigger is the sun than the earth?

• 3.326 x 10⁵

• 3.326 x 10⁶

• 1.99 x 10³⁰

• 1.99 x 10⁶