2012 OAA Review Stations
7th Grade Math
Station #3
Number Sense
2. Find the value of the expression:
1.
2.
3.
4.
2.4
2.8
3.6
5.4
0%
index
2.4
2.8
3.6
5.4
3. A microwave oven costs $92. It is on sale
for 15% off. Which proportion can be used to
find the final price (n) of the microwave
oven?
1.
2.
3.
4.
85/100 = n/92
n/0.15 = 92
92/100 = 85/100
92/n = 15/100
0%
index
85/100 = n/92
n/0.15 = 92
92/100 = 85/100
92/n = 15/100
4. Which statement is always true about the sum
of a negative integer and a positive integer?
1.
The sum is zero.
2.
The sum is positive.
3.
The sum is negative.
4.
The sum can be positive, negative or zero.
0%
0%
0%
0%
index
5. Jim divided –2 by an integer and his result
was between –1 and 0. Which integer could
have been the divisor?
0%
0%
0%
0%
1.
2.
3.
4.
-4
-1
1
4
index
6. Rani has determined that 10 beans weigh
0.25 ounces. About how many beans are
there in a bag that weighs 12 ounces?
48
120
400
489
0%
0%
0%
0%
9
48
0
40
12
0
index
48
1.
2.
3.
4.
7. An airline has 400 flights a day. Of these,
80% depart before 6 p.m. Flights leaving
before 6 p.m. depart on schedule ¾ of the
time. How many flights leaving before 6 p.m.
depart on schedule each day?
1.
2.
3.
4.
155
240
300
320
0%
index
155
240
300
320
8. There are 29 bacteria in a sample. How
many bacteria is this?
1.
2.
3.
4.
18
256
512
1,024
0%
index
18
256
512
1,024
9. Jackson has a board that is 6 ½ feet long.
He needs a board that is ¼ of this length.
What is the length of the board that Jackson
needs?
1.
2.
3.
4.
1 5/8 feet
2 1/6 feet
2 ½ feet
6 ¼ feet
0%
index
1 5/8 feet
2 1/6 feet
2 ½ feet
6 ¼ feet
10. During a quality control check, a factory
found that 5% of the parts it produces are
defective. The factory recently completed an
order for 144,000 parts. Approximately how
many of the parts from the order may be
defective?
1. 2,800
2. 7,200
3. 28,000
4. 72,000
,0
0
72
,0
0
0
0%
0
0%
28
0
0%
7,
20
2,
80
index
0
0%
Station #4
Measurement
1. At 7:00 a.m. the temperature was 55o. The
temperature was 72ºF at 3:00 p.m. Which is the
most appropriate way to describe the average
rate of change in temperature?
1. Degrees per hour
2. Degrees per
minute
3. Hours per degree
4. Minutes per
degree
Index
0%
Degrees per hour
Degrees per minute
Hours per degree
Minutes per degree
2. Aaron is tiling a floor. The floor measures
6 feet by 5 feet. Aaron is using square tiles
with sides that measure 3 inches. How many
tiles will it take to cover the entire floor?
30 tiles
90 tiles
270 tiles
480 tiles
s
0
48
0
27
til
e
s
0%
til
e
til
e
90
til
e
Index
0%
s
0%
s
0%
30
1.
2.
3.
4.
3. A circle is cut out of a
square as shown. What is the
approximate area of the
shaded portion of the figure?
1.
2.
3.
4.
22 square feet
37 square feet
69 square feet
85 square feet
Index
0%
22 square feet
37 square feet
69 square feet
85 square feet
4. Tina created a
display as shown
below. What is the
total area of her
display?
1.
1,152 square inches
2.
1,440 square inches
3.
2,016 square inches
4.
2,880 square inches
0%
0%
0%
0%
Index
5. Dave wants to estimate the distance from
Harrisburg to Jonestown. The distance on
the map is about 13 inches. The scale on the
map indicates that 2.5 inches = 6 miles.
About how many miles is it from Harrisburg
to Jonestown?
1.
2.
3.
4.
0%
5 miles
15 miles
31 miles
39 miles
Index
5 miles
15 miles
31 miles
39 miles
7. An angle is shown on this protractor.
Estimate the measure of the angle to the
nearest degree.
1. 23°
0%
2. 26°
0%
3. 27°
0%
4. 37°
0%
Index
9. A packing company is changing the size
of a shipping carton. The carton is in the
shape of a rectangular prism. The height of
the carton will be doubled and the width will
be tripled. By what scale factor will the
volume of the original carton increase?
1.
2.
3.
4.
0%
5
6
9
36
Index
5
6
9
36
Station #5
Geometry
1. Which statement is a characteristic of all
parallelograms?
1. Adjacent sides are
congruent.
2. Adjacent sides are
perpendicular.
3. Opposite angles are
congruent
4. Opposite angles are
supplementary
..
ar
e.
s
ite
an
gl
e
s
gl
e
pp
os
O
O
pp
os
ite
an
id
es
ts
en
dj
ac
A
ar
e.
p.
..
ar
e
c.
..
ar
e
id
es
ts
en
dj
ac
A
index
..
0% 0% 0% 0%
2. Coral was asked to draw a rhombus on the
chalkboard.
Coral drew a square.
Ken told Coral that she didn’t draw a rhombus.
Coral responded, “A square is a rhombus.”
Which statement supports Coral’s reasoning that
a square is a rhombus?
1.
2.
3.
4.
A rhombus must have at least
four sides.
A rhombus must have one
pair of parallel sides.
A rhombus must have right
angles.
A rhombus must have four
congruent sides.
index
0%
A rhombus must ha...
A rhombus must ha...
A rhombus must ha...
A rhombus must ha...
3. Parallelogram EFGH is similar to
parallelogram WXYZ. What is the length of
WZ?
0%
0%
0%
0%
1.
2.
3.
4.
3 in.
6 in.
7 in.
9 in.
index
4. Jason made a model stop sign for his
model train set. An actual stop sign measures
12 inches on each side. Jason’s model stop
sign measures ½ inch on each side. What is
the scale of the model sign to the actual sign?
1.
2.
3.
4.
1:2
1:6
1 : 12
1 : 24
0%
index
1:2
1:6
1 : 12
1 : 24
5. A figure is shown. Which degree of
rotational symmetry does this figure have?
1.
2.
3.
4.
90
120
180
270
0%
index
6. Two interior angles of triangle FGH
measure 25 o and 50. What is the measure
of HFG?
1. 15 o
0%
2. 25 o
0%
3. 90 o
0%
4. 105 o
0%
index
7. A rectangular garden has the dimensions
shown. A pathway cuts diagonally through
the garden. What is the length of the
pathway?
92
fe
e
t
0%
t
fe
e
fe
e
34
fe
e
index
0%
t
0%
t
0%
46
25 feet
34 feet
46 feet
92 feet
25
1.
2.
3.
4.
8. Lance is 5 feet tall. His shadow is 8 feet long. At
the same time of day, a tree’s shadow is 32 feet
long. What is the height of the tree?
1.
2.
3.
4.
0%
20 feet
24 feet
29 feet
51 feet
index
20 feet
24 feet
29 feet
51 feet
9. Triangle LMN is shown on the graph.
Triangle LMN is translated three units to the
right and two units down. What are the
coordinates of the vertices for triangle L′ M ′
N ′?
0%
0%
0%
0%
1.
2.
3.
L ′ (–3, 1), M ′ (3, 4), N ′ (5, 1)
L ′ (–4, 1), M ′ (5, 1), N ′ (2, 4)
L ′ (5, 1), M ′ (3, 1), N ′ (2, 4)
4.
L ′(4, 3), M ′(1, 5), N ′(1, –3)
index
Station #6
Patterns, Functions, & Algebra
3. Which pattern is non-linear?
1. –4, 2, 8, 14, 20, …
2. 2, 4, 8, 16, 32, …
3. 3, 6, 9, 12, 15, …
4. 5, 9, 13, 17, 21, …
Index
17%
0%
22%
61%
–4, 2, 8, 14, ...
2, 4, 8, 16, ...
3, 6, 9, 12, ...
5, 9, 13, 17, ...
4. Kwame bought three rose bushes and
two maple trees. Each rose bush costs $15.
Kwame spent a total of $67. Let t represent
the cost of one maple tree.
Which equation is one way to represent this
situation?
1.
2.
3.
4.
2t + 3(15) = 67
2t + 3t = 67
2t + 3t = 67t
3t + 2(15) = 67
Index
13% 6%
50%
31%
2t + 3(15) = 67
2t + 3t = 67
2t + 3t = 67t
3t + 2(15) = 67
5. Simplify: 3x2 + 3x – x2 + 5 + 5x
33%
3x 2 + 8x + 5
10x2 + 5
15x6
2x2 + 8x + 5
24%
24%
Index
5
+
x6
2x
2
+
8x
15
+
x2
10
2
+
8x
+
5
5
19%
3x
1.
2.
3.
4.
6. Which expression is equivalent to
5(a + a + b)?
25%
30%
10%
35%
1.
2.
3.
4.
15ab
10a + b
5a + 5b
10a + 5b
Index
7. A shipping company uses a formula to
determine the cost for shipping a package: c =
2.79 + 0.38p, where c is the cost of shipping and
p is the number of pounds. What is the cost of
shipping a package that weighs 8 pounds?
1.
2.
3.
4.
38%
$2.79
$3.04
$5.21
$5.83
33%
24%
5%
Index
$2.79
$3.04
$5.21
$5.83
8. The relationship between x and y is
y = –2 x + 7.
How does the value of y change when x
increases from 0 to 3?
1.
2.
3.
4.
y decreases by 6
y decreases by 3
y increases by 5
y increases by 7
Index
24%
5%
48%
24%
y decreases by 6
y decreases by 3
y increases by 5
y increases by 7
Station #7
Data Analysis
1.
Emily earns $12 every week. The circle
graph shows how Emily uses her money
each week. Emily claims that she only
spends about $10.00 each week. Which
statement supports Emily’s claim?
1. 50%
She saves 15% of her money
each week.
2. 50%
She spends $6.00 each week on
entertainment.
3. She uses 12% of her money to
0%
buy clothes
4. She buys almost $3.00 worth of
0%snacks every week.
Index
2. Colby graphed some data as shown in this
box-and-whisker plot. Which statement is true
about Colby’s data?
1. The range of data is 25.
2. One-half of the data are
below 65.
3. The median of the data is
60.
4. Three-fourths of the data
are below 90.
Index
0%
The range ...
One-half o...
The median...
Three-four...
3. This stem and leaf
plot represents the
heights, in inches, of
the students in Ms.
Martin’s class. What
is the mode of these100%80%
data?
60%
40%
1.
2.
3.
4.
54 inches
59 inches
60 inches
65 inches
20%
0%
54
0%0%0%0%
...
60
.
i..
Index
4. Manny surveyed 24 of his classmates about their
vacation plans. The bar graph shows the results.
Manny’s class is representative of the entire school.
What is a reasonable estimate for how many of the 300
students in the school have
no vacation plans?
1.
2.
3.
4.
50 students
75 students
100 students
125 students
Index
5. Josh’s test scores were 95, 89, 87, 95,
86, and 88. Which measure of center will
give Josh the highest final grade?
1.
2.
3.
4.
Mean
Median
Mode
All three are the
same
0%
Index
Mean
Median
Mode
All three ...
7.The chart shows changes in population in
Ohio’s four largest cities from 1990 to 2002.
Based on the chart, which claim misuses the
data?
0%
0%
0%
0%
1.
2.
3.
4.
The population of Cincinnati decreased from 1990
to 2002.
Columbus was the only one of the four cities whose
population increased.
The population of Columbus grew by about 14%
from 1990 to 2002.
The population in Cleveland and Toledo decreased
by the same number of people.
Index
8. Tony has one green, one white, one red
and one blue shirt. He also has one pair of
black jeans and one pair of blue jeans. He
randomly chooses a shirt and a pair of
jeans from his closet. What is the
probability that Tony chooses a white shirt
and a pair of blue jeans?
1. 1/8
0%
2. ¼
3. ½
4. 3/4
Index
1/8
¼
½
3/4
9. Sam spins this spinner 120 times. How
many times can Sam expect to land on
blue?
0%
1.
2.
3.
4.
5
12
20
24
Index
5
12
20
24
10. Robyn rolled a number cube 60 times in
an experiment. Her results are shown in this
table. What was the experimental probability
of rolling a 6?
1.
2.
3.
4.
0%
¼
1/6
1/10
1/15
Index
¼
1/6
1/10
1/15