preap test review key

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I PreAP/GT Test Review - Chapter 2: Multiplication 8= Division of Fractions 8= DecimalsI
1. Multiply or Divide as directed. Write your answer in simplest form. I
A. 3.2 x 4.1
13,1ÿ-
C. 176.8 + 1.6
l/0, 5"
2-,5" 2_ L_._ÿ'
B. ÿ + iÿ
9,1
D. 4! x 1-3
,ÿ,ÿ-
6
s
15"
ÿ
ÿ
ÿ
ÿ ÿ
.ÿ
or 0 to divide as indicated. Write you answer in simplest form. J
2. Use models
A.
"2
s
4
,
3
/
[2-
Cut all into fourths. Then cut into thirds the o ÿ make 12ths.
J3. Use the area model to multiply the following fractions: J
3
X 2:
A. l4
ÿ
ÿ,#ÿpÿ-, 4- S'/ÿ ÿ ÿ-,ÿ'fÿ-ÿ
3
1
3
1
B . 5 X 2
t
V {[
'/ÿ ,///
o
©
,
,
4. Ted collected
ÿ a bag of leaves. Marissa
ÿ as
many3bags of leaves as Ted. Which describes the number
3 of
collected
of bags of leaves that Marissa collected. IExplain how you know thisI
3 bag
2
% than3bag
more
3 ÿ bag
ÿ less than
3 bag
D more than2
5. Mr. Atkinson has 5 ÿ z lb. of dry fish food. He will put an equal amount_of fooÿLj_ÿ containers. How much fish food
will be in each container? Circle ALL expression(s) that will find the amount of food in each container and explain in
words why it will or will not answer the question.
A
5! x 3
4
5! x ÿ
4
3
C
3 +
4
4
+
.ÿ
6. What is the area Of half of the given rectangle? Estimate first then find the actual area.
(12 xS) "Z
D
Estimation: ÿ/2 ;< L/) ¢ 71 ÿ 2t
Actual:
,27
2/cl
Z
.
Cost
Using the following menu, find the price of the following:
A. 6 blueberry muffins Z.ÿ,q ÿ,
blueberry muffins i
ÿ ÿ, ÿzll
x
B. 4donuts
chocolate eclair
flÿ-ÿ
$I ,59lea.
ÿ 3
z
C. 9 chocolate ÿclairs
8.
$91doz
$2.78/2
q
/q.ÿ /
ÿ//7/" _ÿ/
Samantha has an aquarium that can hold 14 gallons of water. If she fills it ÿ full, how
many gallons of water are needed to fill the aquarium?
5
Use the model and then write an expression to solve the equation.
I
o,
- JH
Expression:
ÿ0
i
/
Solution:
l
)
Why is your answer reasonable?
3
9. Brady has 6ÿgallons of water. He plans on using lÿgallon to water his plants each day. How many days will he be
able to water his plants?
Expression:
Lÿ
_
zt:fÿ
ÿ.
Solution:
W,',,, ,s ,,ou, onswe,,',,,,sono,,,e.', ;..,k, a'
10.lwrite the multiplication problem represented for each model: I
A
7_
B
g"
,g-
g
C
r4 z4
D
-ÿ
11. Ms. Parker bought 21 pounds of apples that cost $1.60/Ib. and 1 3_4 pounds of oranges that cost $1.25/Ib. How much
%
did Ms. Parker pay for her fruit to the nearest penny? Round last and write your answer as money!
,
3
Expression: ÿ ÿ: /.ÿ0)ÿ {/ÿ)C/. Z__
ÿ.)
Answer:
ÿ'" /(ÿ
q.oo + '2./17
2
12. John had 2 pizzas left after his party. If he gave -ofthe leftover pizza to Ricky, how much pizza did Ricky get?
3
I Use the models to help solve:I
Shade 2 out of every 3 pieces. Then count the number of pieces shaded.
13. The table shows the fraction of a hardware store's total sales in three
Category
:,
-';ÿ .
categories. Pat was responsible for 2 of the outdoor grill sales.
sWhat fraction of the total sales does this represent for him?
Fraction
of.
• •• Total
Sales
I
power tools
".
E
m
outdoor grill,s
'8
3
16
[umbing parts
14.
1 foot
long
and
Vic cuts a 10! foot board into pieces
that
are
ÿ a 6 foot board into pieces that are
5 i foot long. How
2
many pieces of board will Vic have in all? Explain how you know your answer is reasonable.
Expression: ÿ}ÿ 5 } "ÿ
gq
+
- ''
"ÿ"
j ÿ
Solution:
I I q p, ce_s
ÿ_
(')
15. Spencer took $21 with him to the mall. At the music store he spent- of
of what he
3 his money on a DVD. He spent
4._1 ..--------
had left on a drink. How much money did Spencer have after he bought his drink?
Expression:
"q
L/ ÿ" T
ÿ- So'[ution:
2"5--
Explain why your answer is reasonable
Hint: Draw a picture to help. Label the parts spent, Find the fraction that represents the amount left over.
,., _. ,,.
i
:

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