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Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Section 1 – Selected Response: Shade the appropriate bubble on the bubble sheet. 1. Which list represents the factors of a perfect square number?
A) 1, 2, 4, 8, 16B) 1, 2, 7, 14C) 1, 2, 3, 4, 6, 12D) 1, 2, 3, 6, 9, 18
Grade 8 Math Final Exam 2012 Answer Key
odd # of factors, 16 is a perfect square
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
1. The area of a square is 144 . What is the perimeter of thesquare, in m?
A) 12B) 48C) 72D) 288
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Calculate:
A)
B)C) 12D) 32
()()=(+)
(4)(8)=32
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Calculate:
A)
B)C) 7D) 8
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Calculate:
A)
B)
C)
D)
BEDMAS
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Solve:
A)
B)
C)
D)
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Solve:
A)
B)
C)
D) y
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
What relationship is indicated in the graph?
A) As increases by 1, decreases by 6
B) As increases by 1, decreases by 2
C) As increases by 1, increases by 2
D) As increases by 1, increases by 4
as x increases/decreases by...y increases/decreases by...
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Merlin exercises for hours each day of the week except Sunday. How many hours does he exercise in one week?
A)
B)
C)
D) 1
2
Cross Reduce
Change mixed # to improper fraction
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
It takes scoops of flour to make one cake. How many cakes do32 scoops of flour make?
A)
B)
C)
D)
2
1Multiply by the reciprocal
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Section 1 ‐ Constructed Response: Answers are to be done in the spaces provided. Show all necessary workings .1. What is the length of the diagonal path to the nearest tenth? Justify your answer.
[3 Marks]
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Calculate by sketching a model of your choice (i.e.counters, number line, etc.).
[2 Marks]
051015
3 jumps of 5 backwards
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Janet has two pieces of ribbon that are each m long. She needs to
cut each piece into smaller lengths of m. She thinks she will get 18pieces of the appropriate length. Do you agree or disagree? Explainyour answer.
[3 Marks]
1
1
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
4. Solve:[2 Marks]
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Section 2 – Selected Response: Shade the appropriate bubble on the bubble sheet .
11. Which set of numbers could be the side lengths of a right triangle? A) 1, 1, 2B) 8, 15, 17C) 10, 12, 15D) 10, 20, 30
If the left side equals the right side, you have a pythagorean triple
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
What is the value of , in metres, to one decimal place?
A) 2.8B) 9.0C) 13.1D) 14.9
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Thomas owes $15 to each of 3 friends. Which equation represents thetotal amount Thomas owes?
A)
B)
C)
D)
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
The water level in a pool dropped 8 cm each hour. How many hoursdid it take for the water level to drop 48 cm?
A)
B)C) +6D) +40
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
In a game, a player earns 3 points for every hit and loses 2 points forevery miss. James has 15 hits and 16 misses. If James wants afinal score of 31, how many more points does he need?
A)
B)C) 13
D)
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Which expression is equivalent to ?
A)
B)
C)
D)
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
A ditch holds 12 tonnes of dirt. A pickup can carry tonnes of dirt. How many pickup loads would fill 7 ditches?
A)
B)
C)
D)
28
1
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Which is the correct net for this solid?
A)
B)
C)
D)
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Which solid can be constructed from this
net?
A)
B)
C)
D)
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
What is the total surface area, in , of this cube?
A) 4B) 16C) 24D) 64
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
What is the surface area, in cm2, of this rectangular prism?
A) 352B) 512 C) 704D) 960
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
The surface area of a cube is . If each edge is doubled, what is
the new surface area, in ?
A) 200B) 300C) 1200D) 2400
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
What is the surface area, in cm2, of this triangular prism?
A) 30B) 43 C) 90 D) 780
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
A cylinder has a diameter of 10 cm and a height of 20 cm. What is the
volume of the cylinder, in ?
A) 200B) 785C) 1570D) 6280 10cm
20cm
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
The volume of this right prism is 17 . What is the area of the
base, in ?
A) 16B) 17C) 160D) 1700
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
What percent of the larger grid is shaded?
A) 39%B) 39.03%C) 39.3%D) 40%
39 full blocks
3/10 of a block
Therefore 39.3%
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Which percentage is equivalent to 0.004? A) 0.04%
B) 0.4%C) 4%D) 40%
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Last year an eReader sold for $150. Today it sells for $105. What is the percent decrease?A) 30%
B) 43%C) 70%D) 143%
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
There are 45 students going on a school trip. The ratio of boys to girls is 4:5. How many of the students are girls? A) 9
B) 20C) 25D) 36
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
In his Marathon of Hope, Terry Fox ran 5373 km in 143 days. At this rate, approximately how many kilometres did he run in 10 days? A) 14.3
B) 37.6C) 375.7D) 537.3
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Solve: A)
B)
C)D)
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Solve:
A)
B)
C)
D)
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
What is the first step in solving the equation ?
A)
B)
C)
D)
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
What type of graph would you use to display the percentage of favorite hockey teams of Grade 8 students? A) bar
B) circleC) lineD) pictograph
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
What is the probability of rolling a 2 and spinning an odd number?
A)
B)
C)
D)
1
2
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Jennifer puts these lettered cards in a bag
She selects a card, replaces it, and selects another card. What is theprobability that she will choose A and then B?
A)
B)
C)
D)
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
A spinner has 12 equal sectors: 4 red, 3 blue, and 5 yellow. Thepointer on the spinner is spun 3 times. What is the probabilityof landing on red, then blue, then red again?
A)
B)
C)
D)
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
What is the sum of the angles, in degrees, around any given point in a tessellation?
A) 45B) 90C) 180D) 360
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Justin created a three dimensional object using blocks. Which is the only correct view of his object?
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
What is the front view of the object after it has been rotated 9towards you about the axis?
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Determine the value o .
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
2
1
Multiply by the reciprocal
Cross Reduce, Multiply Numberators, Multiply Denonimators
Find a common denominator
Change improper fraction to a mixed number
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
An aquarium has the dimension . The wateris 8 cm from the top. What volume of water is in the aquarium?
25cm
25cm
30cm
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Find the surface area of a cylinder with a diameter of 30cm and the height of 20cm.
30cm
20cm
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Alyssa bought a Blu‐ray Disc on sale for $34.00 which was 85% of the regular price.
(A) What was the regular price of the disc? [2 Marks]
(B) What did she pay, including 13% sales tax? [1 Mark]
A) B)
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
In two stores, the same detergent is on special. Which is the better buy? Justify your answer. [3 Marks]
Store A: 6 bottles for $12.48 Store B: 7 bottles for $14.42
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
A bookstore originally had 12 Math books and 15 Science books. If 6 Math books are sold, what is the new ratio in lowest terms, of math books to the total books? [2 Marks]
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
The two graphs show sales of T‐shirts at The Tee Shop for May.
Which graph could be misleading? Justify your answer. [2 Marks]
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
The equation of a linear relation is: (A) Complete this table of values for the relation.[1Mark]
(B) Graph the data from the table in part A on the grid below. [1 Mark]
X Y
1 7
0 4
1 1
2 2
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
14. Draw and label any three views of this object?
Top View Front View
Right View
Left View
Grade 8 Math 2012 Answer Key.notebook June 07, 2016
Use ALL three objects to create a tessellation on the grid below. Repeat your tessellation at least twice.