1|Page
WGU D128 MATHEMATICS FOR ELEMENTARY
EDUCATORS OA EXAM ACTUAL EXAM 200 QUESTIONS
AND CORRECT DETAILED ANSWERS|ALREADY GRADED
A+
A gardener has a rectangular garden with an area of 374 yd 2. The
length of the garden is 17 yd. The gardener wants to enlarge the
garden by doubling only the width of the current garden. How much
fencing will the gardener need to enclose the new garden?
......ANSWER......122 yd
A teacher is making a game of ring toss for her class. She starts by
using a circle with a diameter of 10 in. and then cuts out a smaller
circle with a diameter of 6 in., leaving a ring as shown in the given
image. ......ANSWER......50.27 sq. cm
What is the approximate capacity of a spherical water tank with a
radius of 7 ft? ......ANSWER......1,436 ft 3
A cylinder has a volume of 484π in. 3 and a height of 4 in. What is the
radius of the cylinder? ......ANSWER......6.21 inches
pg. 1
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A cylinder has a volume of 600 in 3. Find the volume of a cone with
the same radius and height as the cylinder. ......ANSWER......200 cubic
inches
How many square centimeters of sheet metal are required to
manufacture a can with a radius of 3.5 cm and a height of 8 cm
without overlapping? ......ANSWER......252.77 cm 2
What is the surface area of a sphere with a diameter of 14 in.?
......ANSWER......615.44 in 2
Find the surface area of a rectangular prism with a length of 3 in., a
width of 4 in., and a height of 5 in. ......ANSWER......94 in 2
What device would you use to measure the volume of a liquid?
......ANSWER......Graduated Cylinder
What should a student use to measure the length and width of a
textbook? ......ANSWER......Ruler
A runner runs in a park for 110 minutes.What time did the runner
finish running if the runner started at 8:10 a.m.?
......ANSWER......10:00 AM
pg. 2
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An individual wants to buy a house worth $500,000, but only has
$350,000 in a bank account. What is the deficit?
......ANSWER......150,000
A pen is 12 cm long. A pencil is 4 cm longer than the pen. What is the
total length of the pencil and the pen? ......ANSWER......12 cm+ 16
cm=28 cm
What is 15 in. in meters, given 1 in. equals 0.0254 m?
......ANSWER......0.381 m
There are two weeks and three days remaining until the final exam.
How many hours are there until the exam? ......ANSWER......408 hours
A tank can hold 3 gal. of water. The tank currently has 2.5 gal. of water
inside. How many liters of water need to be added to fill the tank,
given that 1 gal. equals 3.79 L? ......ANSWER......1.895 L
How many hours in a week? ......ANSWER......168 hours
An individual is paying $50 per day for a rental car. How much will it
cost to rent that car for two weeks?.... ......ANSWER..$700
A car is traveling at 50 mph. How far will the car travel in 30 minutes?
......ANSWER......25 miles
pg. 3
WGU D128 MATHEMATICS FOR ELEMENTARY
EDUCATORS OA EXAM ACTUAL EXAM 200 QUESTIONS
AND CORRECT DETAILED ANSWERS|ALREADY GRADED
A+
A gardener has a rectangular garden with an area of 374 yd 2. The
length of the garden is 17 yd. The gardener wants to enlarge the
garden by doubling only the width of the current garden. How much
fencing will the gardener need to enclose the new garden?
......ANSWER......122 yd
A teacher is making a game of ring toss for her class. She starts by
using a circle with a diameter of 10 in. and then cuts out a smaller
circle with a diameter of 6 in., leaving a ring as shown in the given
image. ......ANSWER......50.27 sq. cm
What is the approximate capacity of a spherical water tank with a
radius of 7 ft? ......ANSWER......1,436 ft 3
A cylinder has a volume of 484π in. 3 and a height of 4 in. What is the
radius of the cylinder? ......ANSWER......6.21 inches
pg. 1
,2|Page
A cylinder has a volume of 600 in 3. Find the volume of a cone with
the same radius and height as the cylinder. ......ANSWER......200 cubic
inches
How many square centimeters of sheet metal are required to
manufacture a can with a radius of 3.5 cm and a height of 8 cm
without overlapping? ......ANSWER......252.77 cm 2
What is the surface area of a sphere with a diameter of 14 in.?
......ANSWER......615.44 in 2
Find the surface area of a rectangular prism with a length of 3 in., a
width of 4 in., and a height of 5 in. ......ANSWER......94 in 2
What device would you use to measure the volume of a liquid?
......ANSWER......Graduated Cylinder
What should a student use to measure the length and width of a
textbook? ......ANSWER......Ruler
A runner runs in a park for 110 minutes.What time did the runner
finish running if the runner started at 8:10 a.m.?
......ANSWER......10:00 AM
pg. 2
, 3|Page
An individual wants to buy a house worth $500,000, but only has
$350,000 in a bank account. What is the deficit?
......ANSWER......150,000
A pen is 12 cm long. A pencil is 4 cm longer than the pen. What is the
total length of the pencil and the pen? ......ANSWER......12 cm+ 16
cm=28 cm
What is 15 in. in meters, given 1 in. equals 0.0254 m?
......ANSWER......0.381 m
There are two weeks and three days remaining until the final exam.
How many hours are there until the exam? ......ANSWER......408 hours
A tank can hold 3 gal. of water. The tank currently has 2.5 gal. of water
inside. How many liters of water need to be added to fill the tank,
given that 1 gal. equals 3.79 L? ......ANSWER......1.895 L
How many hours in a week? ......ANSWER......168 hours
An individual is paying $50 per day for a rental car. How much will it
cost to rent that car for two weeks?.... ......ANSWER..$700
A car is traveling at 50 mph. How far will the car travel in 30 minutes?
......ANSWER......25 miles
pg. 3
