what is the first step in multiplying scientific notation?
find your whole numbers
100
(3.2 X 10^3)(5.1 X 10^7)
What do you do with the 3.2 and 5.1?
Multiply
100
The speed of light is 3 x 10^8 meters/second. If the sun is 1.5x 10^11 meters from earth, how many seconds does it take light to reach the earth?
Will you add, subtract, multiply, or divide the scientific notation numbers?
What is multiply.
200
what is the last step?
re-write your problem
200
(3.2 X 10^3)(5.1 X 10^7)
What do you do with the exponents?
what does it equal?
you have to add them
^3 + ^7= ^10
200
The speed of light is 3 x 10^8 meters/second. If the sun is 1.5x 10^11 meters from earth, how many seconds does it take light to reach the earth?
Write answer in scientific notation.
What is 4.5 X 10^19
300
what is the second step?
to multiply the whole nujmbers
300
(2.756 X 10^3)(3.23 X 10^4)
Answer?
9.4182 x 10^7
300
While looking through a microscope the cell is magnified
2.8 X 10^-8 times. How small is the cell?
What is 0.000000028
400
what is the third step?
to take the exponents and ADD them
400
(1.2 X 10^-5)(4 X 10^8)
Write in standard notation
What is 4.8 X 10^3 => 4,800
400
The human eye blinks about 6.25 x 10^6 times each year. About how many times has the eye of a 14 year old blinked? Write answer in scientific notation.
What is 8.7 X 10^7
500
what is something you DO NOT do with the exponents when multiplying scientific notation
multiply the exponents is a DON'T!
500
(4.2 X 10^5)(3.1 X 10^2)
Write in scientific notation.
What is not 13.02 X 10^7
but it should be 1.302 X 10^8
500
The US debt is approximately 13 trillion dollars. There are about 13 million people living in the US. How much could each person pay for the US to be debt free? Round your answer to the nearest tenth.
What is (1.3 X 10^13) / (3.0 X 10^8)
Not 0.43 X 10^5 but it should be 4.3 X 10^4 or $43,000 per person.