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Scientific Notation
Standard Notation
Multiply
Divide
Word Problems
100

When you write in scientific notation, the first number needs to be between what two numbers?

What is 1 and 10

100
When you have a negative exponent, you move the decimal to the _______________.
What is left.
100
(3.2 X 10^3)(5.1 X 10^-7) What do you do with the 3.2 and 5.1?
What is Multiply. 3.2 X 5.1 = 16.32
100

(9.3 X 10^9) / (3.1 X 10^4) What do you do with the 9.3 and 3.1?

What is divide. 9.2/3.1 = 3

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
0.0000032
What is 3.2 X 10^-6
200
When you have a positive exponent, you move the decimal to the _______________.
What is right.
200
(3.2 X 10^3)(5.1 X 10^-7) What do you do with the exponents?
What is Add. 3 + -7 = -4
200

(9.3 X 10^9) / (3.1 X 10^4) What do you do with the exponents?

What is Subtract. 9 - 4 = 5

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
0.004082
What is 4.082 x 10^-3
300
9.0123 X 10^-2
What is 0.090123
300
(2 X 10^3)(3 X 10^4) Write in Scientific Notation
What is 6 X 10^7
300

(4.8 X 10^3) / (2 X 10^9) Write in scientific notation.

What is 2.4 X 10^-6

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
770,000
What is 7.7 X 10^5
400
4.2 X 10^-4
What is 0.00042
400

(1.2 X 10^-5)(4 X 10^8) Write in scientific notation

What is 4.8 X 10^3

400

(6.14 X 10^2) / (3.07 X 10^-8) Write in scientific notation.

What is 2 X 10^10 

Note 2 - -8 = 10 is the same as 2 + 8 = 10 

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
0.00000641
What is 6.41 X 10^-6
500
8.256 X 10^5
What is 825,600
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

(5.4 X 10^3) / (2.7 X 10^4) Write in scientific notation.

What is 2 X 10^-1

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.