Final Copy Grade 8 Midterm Exam Math January 2011.pdf

ANSWER SHEET
Selected Response
Grade 8 Mathematics
PJHS
January 2011
Name: ______________________________
1 19
2 20
3 21
4 22
5 23
6 24
7 25
8 26
9 27
10 28
11 29
12 30
13
14
15
16
17
18
You will need a
pencil/eraser for this
section. You are
permitted to use any
math manipulatives
that your teacher has
used with you this year.

Grade 8 Math Midterm 2011
1. The area of a square block of land is 64 m 2 . What is the length, in m, of each side of the
block of land?
A) 4
B) 8
C) 16
D) 32
2. Which selection could possibly be the number of factors in the list of factors for a perfect
square number?
A) 64
B) 90
C) 171
D) 308
3. What is the perimeter of a square, in cm, that has an area of 144 cm 2 ?
A) 36
B) 48
C) 72
D) 576
4. Which expression is equivalent to √16 + √9 ?
A) 5
B) 7
C) 11
D) 12.5
5. Which integer is closest to √62?
A) 7
B) 8
C) 31
D) 62
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Grade 8 Math Midterm 2011
6. The teacher wants you to estimate√67. Which two numbers should you use to help
determine the estimate?
A) 6 and 7
B) 8 and 9
C) 64 and 81
D) 66 and 68
7. √ is between 7 and 8. What number is NOT a possibility for A??
A) 50
B) 55
C) 60
D) 65
8. The sides of a square measure 4.5 m each. What would be the best estimate, in m 2 , of the
area of the square?
A) 9
B) 18
C) 20
D) 45
9. Which statement is true if the square root of a number is between 36 and 49?
A) The number is less than 6.
B) The number is not between 6 and 7.
C) The number is less than 7.
D) The number is between 36 and 49.
10. What is the best description of ÷ ?
A) equal to 0
B) equal to 1
C) less than 1
D) greater than 1
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Grade 8 Math Midterm 2011
11. What is the value of +
A)
B)
C)
D)
12. Students in the grade 8 class at Presentation Junior High all tried to climb a 6 meter rope
to the top of the gym ceiling. The best student in the class made it of the way up the rope.
How far, in meters, from the ceiling did the best student get?
A)
B) 2
C) 3
D) 5
13. After a school party there is one-quarter of the 5 pizzas left. Mr. Hillier, Mr. Wall, and Mrs.
Flynn decide to share the remaining pizza evenly. What fraction of the original 5 pizzas did
each teacher get?
A)
B)
C)
D)
3

Grade 8 Math Midterm 2011
14. Of the 24 students in a class, have gone to the dentist. One-quarter of the students that
have gone to the dentist need fillings. How many students need fillings?
A) 4
B) 5
C) 6
D) 20
15. What is the value of 1 + 6−2?
A) -14
B) -11
C) 5
D) 14
16. The temperature on August 10 th is 20 o C. There is a heat wave for 4 days which causes the
temperature to increase 3 C per day. What is the temperature, in Celsius, 4 days later?
o
A) 13
B) 23
C) 24
D) 34
17. One week John and his four friends charged a total of $15, $8, $7, $14, and $6 at the diner.
When they went to pay the bill the owner of the diner gave them a ten dollar discount for
being loyal customers. How much does each person pay, in dollars, if they split the bill
equally?
A) 8
B) 10
C) 40
D) 50
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Grade 8 Math Midterm 2011
18. Alan entered a pool tournament. He would get $2 for every game he won, and lose $1 when
he didn’t win. The first day he won 5 games and lost nine. The second day he won 3 games
and lost one. If Alan started the tournament with $6 how much money, , in dollars, does he
have after the second day?
A) -12
B) -4
C) 4
D) 12
19. What is the area, in cm 2 , of square A?
A) 8
B) 64
C) 264
D) 16400
20. What is the value of in this right triangle?
A) 2
B) 4
C) 6
D) 8
21. What is the approximate value of x?
A) 7
B) 10.2
C) 11
D) 11.7
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Grade 8 Math Midterm 2011
22. Which set cannot be the sides of a right triangle?
A) 3, 4, 5
B) 5, 12, 13
C) 6, 8, 10
D) 6, 12, 18
23. What is the name of this object?
A) Rectangular Prism
B) Rectangular Pyramid
C) Square Prism
D) Rectangular Pyramid
24. Which is not a valid net for a cylinder?
A)
B)
C)
D)
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Grade 8 Math Midterm 2011
25. A can of evaporated milk has a diameter of 8 cm, and a height of 10 cm. What is the
approximate surface area of the label, in cm 2 , that goes around the can? Use ≅ 3 for this
question.
A) 240
B) 336
C) 480
D) 824
26. A rectangular prism has a length of 4 m, a width of 4 m, and a height of 4 m. m What is the
surface area, in m 2 , of this prism?
A) 12
B) 24
C) 64
D) 96
27. What is the combined area, in km 2 , of the rectangular faces of this object?
A) 12
B) 24
C) 35
D) 84
28. A sporting goods store sells tents that are mesh on all sides except the floor. What is the
surface area, in m 2 , of the mesh used to make this tent?
A) 10.4
B) 14.4
C) 16.4
D) 17.2
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Grade 8 Math Midterm 2011
29. What is the volume of the tent, in , used in Question 28?
A) 1
B) 2
C) 3
D) 1.4
30. An aquarium, (rectangular prism) has a volume of 300 . Which of the following cannot
be the measurements of the aquarium?
A) 3 × 7 × 14
B) 3 × 5 × 20
C) 5 × 5 × 12
D) 5 × 6 × 10
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Grade 8 Math Midterm 2011
20
NAME: ____________________________________
Grade 8 Mathematics
Midyear Examination
January 2011
You will need a pencil/eraser for this section. You are permitted to use any math
manipulatives that your teacher has used with you this year.

Grade 8 Math Midterm 2011
1. A) Using a method of your choice explain why 25 is a perfect square but 26 is not. [2 marks]
B) Show how you can estimate the square root of 90 without using a calculator. [2 marks]
2. A) Use a model of your choice to solve [2 marks]
B) Use a model of your choice to solve [2 marks]

Grade 8 Math Midterm 2011
3. Janelle was asked to evaluate and her answer is shown below.
Is her answer correct? Explain why or why not.
[4 marks]
=
=
4. A) Draw and label the 3 dimensional object that corresponds to the net. [2 marks]
B) A triangular prism has a base area of 100 cm 2 and a volume of 250 cm 3 . What is the height
of the triangular prism?
[2 marks]

Grade 8 Math Midterm 2011
8. A) Andrew says the triangle shown is a right triangle. Lois says that it is not. Who is correct?
Explain your reasoning.
[2 marks]
B) The area of each square is 36cm 2 . Use this information to find the length of . Round your
answer to 1 decimal place.
[2 marks]