1. 1
Do Now
AIM: Comparing
Numbers In
Scientific Notation

2. 2

3. 3

4. 4
Jupiter 3.7 X 108
miles
Neptune 2.796 X 109
miles
Uranus 1.607 X 109
miles
Earth 9.3 X 107
miles
Venus 8.2 X 107
miles
Mercury 5.7 X 107
miles
Saturn 7.44 X 108
miles
Mars 1.4171 X 108
miles

5. 5
Think-Pair-Share Activity:
1.) How can we determine if 3.45 X 105
is greater than 3.54 X 105
?
2.) How can we determine if 5.13 X 10-3
is greater than 5.13 X 10-5
?
10 2 3 4 5 6 7 8 9 10­1­2­3­4­5­6­7­8­9­10

6. 6
a.) 3.6 X 106
3.65 X 106
b.) 2.0 X 10-4
2.01 X 10-3
c.) 8.231 X 107
8.321 X 109
d.) 3.62 X 10-5
3.621 X 10-4
3.) Compare the numbers. Write , , or> < =
< <
< <

7. 7
4.) Order the following numbers written in scientific notation from least to greatest.
6.4 X 108 3.12 X 105
5.8 X 108
6.2 X 107
6.12 X 104
6.2 X 1011
, ,a.)
b.) , ,
6.12 X 104
6.2 X 107
6.2 X 1011

8. 8
c.)
d.)
10 2 3 4 5 6 7 8 9 10­1­2­3­4­5­6­7­8­9­10
8.0 X 10-9
1.47 X 10-7
2.2 X 10-8
2.5X 10-4
2.55 X 10-4
1.9 X 10-3
, ,
, ,
2.5X 10-4
2.55 X 10-4
1.9 X 10-3

9. 9
Extra Practice

10. 10
7.) MULTIPLE CHOICE: China‛s population in 2001 was approximately
1,273,000,000. Mexico‛s population for the same year was about 1.02 X 108
.
How much greater was China‛s population than Mexico‛s? SHOW ALL WORK!
A.) 1,375,000,000
B.) 1,274,020,000
C.) 1,171,000,000
D.) 102,000,000

11. 11
Forward

12. 12
Back

13. 13
1.) Alpha Centauri is 4.07 X 1013
kilometers away from our solar system.
Sirius is about 8.13 X 1013
kilometers away from our solar system. Which star
is closer to our solar system? Explain your answer.
BEFORE YOU LEAVE: Answer the following question in a complete sentence.
Sirius
Alpha
Centauri

14. 14
BEFORE YOU LEAVE: Answer the following question in a complete sentence.
Alpha
Centauri
Capella
2.) Alpha Centauri is 4.07 X 1013
kilometers away from our solar system.
Capella is about 3.88 X 1014
kilometers away from our solar system.
Which star is closer to our solar system? Explain your answer.

15. 15
Homework: Homework Sheet
Mr. Tjersland's Math 7

16. 16
Jupiter 3.7 X 108
miles
Neptune 2.796 X 109
miles
Uranus 1.607 X 109
miles
Earth 9.3 X 107
miles
Venus 8.2 X 107
miles
Mercury 5.7 X 107
miles
Saturn 7.44 X 108
miles
Mars 1.4171 X 108
miles
AIM: Comparing
Numbers In
Scientific Notation