p.25
LT 6: I can multiply and divide numbers in scientific notation.
Remember what scientific notation is?
10
How do you 1. ________________________________________
multiply #'s 2. ________________________________________
in Scientific 3. ________________________________________
Notation?
4. ________________________________________
(5.1 10 2) (4.1 103)
How do you 1. ________________________________________
divide #'s in Scientific 2. ________________________________________
Notation? 3. ________________________________________
1.1 10 5
5.2 10 2 2.5 107
1.8 102 Using Scientific Notation to Problem Solve.
The average flow rate of the Amazon River is The speed of light is about about cubic feet per second. The miles per second. average flow rate of the Mississippi River is About how far does the light about cubic feet per second. travel in 68 seconds?
Find the ratio of the flow rate of the Amazon to the flow rate of the Mississippi.
p.26
Summary:
CW
p.26­28 (2,4,7,9,11,12,17,22,23)
P
p.26­28 (all)
For 1­10, evaluate the expression. Write your answer in scientific notation.
2. (1.3 107)(3 10­1)
1.
3.
(7.3 10 5) (2.4 104)
4.
5.
6.
7.
8.
9.
10.
p.27
11.
The speed of light is about miles per second. About how far does the light travel in 2 minutes? Write your answer in scientific notation. 12.
What is the ratio of Milky Way radius to the Solar System radius given that the Solar System radius is 5.9 1012 meters and the Milky Way radius is 3.9 1020 meters. Write your answer in scientific notation.
"Remembering"
13.
14.
The lengths of several insects are shown in the table. List the lengths of the insects in order from least to greatest.
15.
p.28
18.
19.
20.
21.
22.
23.
24.
25.
26.
1­4
5­7
2­4
5­7
8­10
11­13
9­10
12­13
Score:
14­16
17­18
15­16
Check­in #2 Tomorrow!
17­18
19­22
23­24
25­28
21­22
23­24
26­28
CW p.26­28 (2,4,7,9,11,12,17,22,23)
P p.26­28 (ALL)
SHOW WORK!
answers
p.26 answers
p.27­28 answers
11. 2.23 107 miles
12.
6.6 107
13.
14.
D
15.
C
A
18.
D
19. A
21.
A
22.
D
23. D
24.
A
25.
C
26.
20.
B