Name: ______________________
Class: __________________
M8-U6: Notes & HW #7 – Scientific Notation Practice
Date: __________________
1.
The table contains seven measurements written in decimal and scientific notation.
a) Complete the table so that each measurement is written in both decimal and scientific
notation.
b) In the last column, rank the measurements in order of size.
(1 = smallest, 2 = next smallest, and so on up to 7 = largest)
Identify the greater number in each pair of numbers. Justify your reasoning.
2.
5.6  10 2
4.
8,700,000
2.1  10 3
5.9  10 3
1
3.
3.4  10 1
1.1  10 1
5.
6.9  10 3
0.0043
For problems 6 & 7 use the table to the right:
Planets Volume (km3)
6. About how many times larger is Venus than Mars?
Venus
9.4  1011
Earth
1.1  1012
Mars
1.6  1011
7. About how many times larger is Earth than Mars?
8. There are 5.816  10 4 spectators in a stadium watching a football game. In a theater there are
1,150 people watching a concert. Which venue has more people? By how many people?
9. An actor has 75,126 “likes” on FacebookTM and has 8.58 10 4 followers on TwitterTM. About
how many fans does the actor have?
In the answer blanks below write: , , or  .
 9  1016 
8
4


(
3

10
)(
3

10
)
_______
10.
4 
3

10


 8  10
11. 3.6  10  _______ 
12. (5  10 4 )  (7  10 4 ) _______ 3.5  10 4
13. 1,000,000 _______(3  10 5 )  (2  10 5 )
3
2


11 
2

10


7
14. The world population is about 7 billion ( 7  10 9 ). There are 4.6  10 7 ants for every human
on the planet. About how many ants are there in the world?
15. Use the formula:
V2
to calculate the value of P when V  6  10 6 and R  7.2  10 8
P
R
16.
2.1  10 60
Find the value of:
7  10 3
17.
Which one of the numbers below has the same value as 3.5  10 3 ? Justify.
35  10 4
3.5  10 3
0.00035
3500
18
a. How many $0.50 burgers can you buy for one million dollars ( $1  10 6 )?
b. How many years does it take to earn one million dollars if you are paid $30 an hour
and work 35 hours a week for 50 weeks a year?
3
19.


Determine the product of: 800.5  2  10 6 , pick the correct choice.
a. 1.7  10 7
c. 1.7  10 9
b. 1.601  10 7

20. Determine the sum of: 30,000  5  10 6


21. Determine the difference between: 0.0008 and 3  10 5

22. Determine the quotient of: 32 billion and 4  10 7
4


d. 1.601  10 9