Multiply & Divide 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

Tags

CCSS.8.EE.A.4

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:

(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

Multiply:

(9.4 x 10⁶)(3.2 x 10⁵)

• 30.08 x 10¹¹

• 3.008 x 10¹⁰

• 3.008 x 10¹²

• 2.9375 x 10¹

Tags

CCSS.8.EE.A.4

Solve:

(6 x 10⁶) x (2 x 10³)

• 1.2 x 10¹⁰

• 8 x 10⁹

• 1.2 x 10⁸

• 8 x 10¹⁰

Tags

CCSS.8.EE.A.3

CCSS.8.EE.A.4

Divide.

• 3.9 x 10⁶
• 4 x 10²⁰
• 4 x 10⁶
• 3.9 x 10²⁰

Tags

CCSS.8.EE.A.4

 $\frac{1.4\ \times\ 10^9}{7\ \times\ 10^2}$  

•  $7\times\ 10^7$  

•  $0.2\ \times\ 10^7$  

•  $2\times10^8$  

•  $2\times10^6$  

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

A microgram is equal to 1 x 10 ^-6 grams. How many times greater than a microgram is 1 x 10² grams? 

• 1 x 10^-8
• 1 x 10^-4
• 1 x 10⁴
• 1 x 10⁸

Tags

CCSS.8.EE.A.3

CCSS.8.EE.A.4

The mass of he sun is 1 x 10³⁰ kilograms. The mass of the earth is 5 x 10²⁴ kilograms. How many times bigger is the sun than the earth?

• 2 x 10⁵

• 5 x 10⁶

• 4 x 10³⁰

• 2 x 10⁶

Tags

CCSS.8.EE.A.4