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2012 OAA Review Stations

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2012 OAA Review Stations

7th Grade Math

Station #3

Number Sense

- 2.4
- 2.8
- 3.6
- 5.4

index

- 85/100 = n/92
- n/0.15 = 92
- 92/100 = 85/100
- 92/n = 15/100

index

- The sum is zero.
- The sum is positive.
- The sum is negative.
- The sum can be positive, negative or zero.

index

- -4
- -1
- 1
- 4

index

- 48
- 120
- 400
- 489

index

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?

- 155
- 240
- 300
- 320

index

- 18
- 256
- 512
- 1,024

index

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 5/8 feet
- 2 1/6 feet
- 2 ½ feet
- 6 ¼ feet

index

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?

- 2,800
- 7,200
- 28,000
- 72,000

index

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?

- Degrees per hour
- Degrees per minute
- Hours per degree
- Minutes per degree

Index

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

Index

- 22 square feet
- 37 square feet
- 69 square feet
- 85 square feet

Index

- 1,152 square inches
- 1,440 square inches
- 2,016 square inches
- 2,880 square inches

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?

- 5 miles
- 15 miles
- 31 miles
- 39 miles

Index

- 23°
- 26°
- 27°
- 37°

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?

- 5
- 6
- 9
- 36

Index

Station #5

Geometry

- Adjacent sides are congruent.
- Adjacent sides are perpendicular.
- Opposite angles are congruent
- Opposite angles are supplementary

index

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?

- 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

- 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
- 1 : 6
- 1 : 12
- 1 : 24

index

- 90
- 120
- 180
- 270

index

- 15 o
- 25 o
- 90 o
- 105 o

index

- 25 feet
- 34 feet
- 46 feet
- 92 feet

index

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?

- 20 feet
- 24 feet
- 29 feet
- 51 feet

index

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 ′?

- 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)
- L ′(4, 3), M ′(1, 5), N ′(1, –3)

index

Station #6

Patterns, Functions, & Algebra

- –4, 2, 8, 14, 20, …
- 2, 4, 8, 16, 32, …
- 3, 6, 9, 12, 15, …
- 5, 9, 13, 17, 21, …

Index

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?

- 2t + 3(15) = 67
- 2t + 3t = 67
- 2t + 3t = 67t
- 3t + 2(15) = 67

Index

- 3x 2 + 8x + 5
- 10x2 + 5
- 15x6
- 2x2 + 8x +5

Index

- 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?

- $2.79
- $3.04
- $5.21
- $5.83

Index

- y decreases by 6
- y decreases by 3
- y increases by 5
- y increases by 7

Index

Station #7

Data Analysis

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?

- She saves 15% of her money each week.
- She spends $6.00 each week on entertainment.
- She uses 12% of her money to buy clothes
- She buys almost $3.00 worth of snacks every week.

Index

- The range of data is 25.
- One-half of the data are below 65.
- The median of the data is 60.
- Three-fourths of the data are below 90.

Index

- 54 inches
- 59 inches
- 60 inches
- 65 inches

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?

- 50 students
- 75 students
- 100 students
- 125 students

Index

- Mean
- Median
- Mode
- All three are the same

Index

- 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?

- 1/8
- ¼
- ½
- 3/4

Index

- 5
- 12
- 20
- 24

Index

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?

- ¼
- 1/6
- 1/10
- 1/15

Index