All Operations with Scientific Notation

Scientific Notation

Multiple Choice

• 9 x 10^10

• 3 x 10^-30

• 2 x 10^10

• 18 x 10^-10

Draw

Adding in Scientific Notation

All Operations with Scientific Notation

Step 1: Determine the __________________ after annotating the word problem  

Step 2 : If addition or subtraction, REMEMBER to make your exponents the ________ using LARS (Left means ___________ to your exponent and Right means ____________ from your exponent)  

Step 3: Perform the operation and make sure your final answer is in scientific notation 

All Operations with Scientific Notation

​Example 1

Two companies merged to form a new company. One company was worth $3.5 X 10^7. The other was worth $7.8 X 10^8. What is the combined value of the company? 

Multiple Choice

Two companies merged to form a new company. One company was worth $3.5 X 10^7. The other was worth $7.8 X 10^8. What operation will we use to find the COMBINED value of the company?  

• addition

• subtraction

• multiplication

• division

Multiple Choice

Two companies merged to form a new company. One company was worth $3.5 X 10^7. The other was worth $7.8 X 10^8. What expression can we use to find the COMBINED value of the company?  

• (3.5x10^8) + (7.8x10^7)

• (3.5x10^7) + (7.8x10^8)

• (0.35x10^7) + (7.8x10^7)

All Operations with Scientific Notation

Example 2

A web site averages 4.5 x 10^4 hits per day.

How many hits will it get in 3.6 x 10^2 days?

Multiple Choice

A web site averages 4.5 x 10^4 hits per day.

What operation will we use to find how many hits will it get in 3.6 x 10^2 days?

• addition

• Subtraction

• multiplication

• division

Multiple Choice

A web site averages 4.5 x 10^4 hits per day.

How many hits will it get in 3.6 x 10^2 days?

• 16.2x10^6

• 16200000

How much greater is the mass of Neptune than the mass of Earth? Write your answer in scientific notation. Write your answer in scientific notation. HINT- THIS IS NOT MULTIPLICATION

Example 3

All Operations with Scientific Notation