Homework S3-1: Real Numbers, Financial Literacy, Real Number System, Scientific Notation
(TEKS 8.2a-d, 8.12D)
Name: ______________________
1. Which number is NOT
2. Which of these real numbers 3. Last month my friend bought
expressed in scientific notation? has the greatest value?
a computer. It can perform
4.66 x 108 calculations per
36
A. 4.45 x 102
second. What is calculations per
A.
6
4
B. 3 x 10
second in standard decimal
B. 8.25 x 10-3
3
C. 35.13 x 10
notation?
C. √16
18
D. 3.1 x 10
D. 90%
4. China’s population was made
up of 5.1 x 107 people and
America’s population was 3.9 x
106 people in 2008. How much
larger was the population of
China in 2008 in scientific
notation?
7. Suppose $4,385 is placed in a
savings account for 4 years.
Find the simple interest if the
interest rate is 3.85%
A. $506.47
B. $675.29
C. $337.65
D. $169.82
Express 6 % as a decimal.
6. At a concert, 31 out of 1,550
people had VIP passes. What
percent of the concert-goers
did not have VIP passes?
8. What is the total amount of
interest earned where $850 is
invested at an interest rate of
7.5% compounded annually for
3 years.
A. $982.28
B. $1,055.95
C. $73.67
D. $205.95
9. Danny buys a car for $1,500
and finances it for 5 years at a
1
simple interest rate of 3 %.
2
What is the total he will pay for
the car?
A. $1,762.50
B. $262.50
C. $281.53
D. $1,500.00
1
5. A city has a 6 % sales tax.
1
2
2
Homework S3-1: Real Numbers, Financial Literacy, Real Number System, Scientific Notation
(TEKS 8.2a-d, 8.12D)
Name: ______________________
18
10. Which of the following
11. How would you classify 2
statements is true?
?
A. All irrational numbers are
Explain.
real numbers
B. All real numbers are
irrational numbers
C. All rational numbers are
integers
D. All integers are irrational
numbers
Classify each number by determining all sets of numbers to which it belongs. Write
each number in the Venn diagram at the bottom of the page.
12. –√15
13. 6.73214…
14. –3
15. 3.5̅