Download Name - White Plains Public Schools

Name ___________________________________
Extended Problem of the Week #15 Review for CMA2:
Part One – Multiple Choice (1 pt. each)
1.
Date _______________
Due: _____________
Score ________
(No calculators allowed for this part)
What is the greatest common factor of
12, 18, 24?
a) 2
2. The nearest star, Alpha Centauri is about
25,000,000,000,000 miles away. How is this
number represented in scientific notation?
a) 2.5 x 1015
b) 6
b) 2.5 x 1013
c) 12
c) 25 x 1012
d) 72
d) 25 x 109
3. Alyssa works as an interior decorator. She
charges a $75 consultation fee and $50 for
each hour, h, she spends shopping or working
in the house. Which expression represents
the total amount Alyssa charges?
4. Which of the following subsets is taken
from the set of rational numbers?
a) { ,
2,
2 1
,
}
3 5
1
, 0.375, 4.2}
6
1 1 5
c) { ,
,
, 2 }
2 6 2
9
d) { , 3 , 7, 100}
2
6. Simplify the expression:
b) { 16 , 5
a) (75 + 50)h
b) 75 + 50h
c) 75h + 50
d) 75 + (50 + h)
5. Which value represents 10-3 as a decimal?
a) 0.1
b) 0.01
c) 0.001
d) 0.0001
7. What is the least common multiple of
10, 15, and 20?
a) 5
b) 10
c) 20
d) 60
42 – 23
a) 2
b) 4
c) 6
d) 8
8. At 4pm the temperature was 8˚. The
temperature was -4º by midnight. What was
the difference in temperature from 4pm.to
midnight?
a) -4
b) 8
c) 12
d) -12
Part 2: Use a calculator
You MUST show all work in order to receive full credit!!
9. Write the prime factorization of 180 in exponential form.
Answer: _____________________
10. Solve and Check the following equation.
2(5x - 6) - 3x = 30
Check
Answer: x=____________
11. The height of a can is 8in. and the length of the radius is 3in.
Part A
What is the total surface area of the can?
3in
8in
Answer: ______________
Part B
Mackenzie wants to cover the cylinder with fabric. She needs to buy some fabric glue.
If one bottle 20 square inches, how many bottles of glue does Mackenzie need to purchase
to have enough glue to cover the cylinder?
Answer: ______________
ak