Grade 8 Mathematics Final Exam Practice Test I

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  • 1/30 Questions

    What is the BEST reason why a circle graph is used for?

    • Percent
    • Amount
    • Time
    • Large amounts
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About This Quiz

Welcome to the Grade 8 Mathematics Final Exam Practice Test I. It's a medium level quiz for all the 8th graders out there who have their finals coming up and thus require practice sessions. With over 30 basic to medium level questions of maths, you can have a quality practice over the subject.

Grade 8 Mathematics Final Exam Practice Test I - Quiz

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  • 2. 

     MATH EXAM SECTION 1: MULTIPLE CHOICE Chapter 1 Representing Data Which of the following is not a type of graph?

    • Circle graph

    • Bar graph

    • Line graph

    • Square graph

    • Pictograph

    Correct Answer
    A. Square graph
    Explanation
    A square graph is not a type of graph commonly used to represent data. Circle graphs, bar graphs, line graphs, and pictographs are all commonly used to visually represent data in different ways.

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  • 3. 

    What is (+8)+(-4)?

    • +4

    • -4

    • -12

    • +12

    Correct Answer
    A. +4
    Explanation
    The given expression, (+8)+(-4), represents adding positive 8 and negative 4. When we add a positive number and a negative number, we subtract the smaller absolute value from the larger absolute value and keep the sign of the larger number. In this case, the absolute value of 8 is larger than the absolute value of 4. Therefore, we subtract 4 from 8 and keep the positive sign, resulting in +4.

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  • 4. 

    To find a ____________ , you times the decimal by 100

    Correct Answer
    percent
    Explanation
    To find a percentage, you multiply the decimal value by 100. This is because a percentage is a way of expressing a fraction or decimal as a portion out of 100. By multiplying the decimal by 100, you are essentially converting it into a percentage representation.

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  • 5. 

    The ___________ is the answer to a division question in fractions

    Correct Answer
    quotient
    Explanation
    The term "quotient" refers to the result of dividing one quantity by another in a division operation. In the context of fractions, the quotient represents the answer obtained when dividing one fraction by another. It is the value that is obtained by dividing the numerator of the first fraction by the numerator of the second fraction, and the denominator of the first fraction by the denominator of the second fraction. Therefore, the quotient is the correct answer to a division question in fractions.

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  • 6. 

    SECTION II: SHORT ANSWER    A ____________ graph is used to measure certain data of distant amounts.                                                         

    Correct Answer
    Line
  • 7. 

    Which fraction is NOT equal to 20%?

    • 2000/10000

    • 800/2200

    • 40,000/200,000

    • 20/100

    Correct Answer
    A. 800/2200
    Explanation
    The fraction 800/2200 is not equal to 20% because when we simplify it, we get 4/11 which is not equivalent to 20/100.

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  • 8. 
    A music store was selling a special on a one hit single album, the manager made a graph on how much were sold during the 4 year period. How is the graph he made misleading? - ProProfs

    A music store was selling a special on a one hit single album, the manager made a graph on how much were sold during the 4 year period. How is the graph he made misleading?

    • Hard to read

    • Bars are to close

    • Misleading numbers

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The graph made by the manager is misleading for several reasons. Firstly, it is hard to read, which means that it may be difficult to interpret the data accurately. Secondly, the bars on the graph are too close together, making it challenging to distinguish between different data points. Lastly, the numbers on the graph may be misleading, possibly due to incorrect labeling or scaling. Overall, all of these factors contribute to the graph being misleading.

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  • 9. 

    Chapter 4 Percents What does the following diagram represent?

    • 1013%

    • 1.13%

    • 113%

    • 213%

    Correct Answer
    A. 113%
    Explanation
    The diagram represents different percentages. The numbers 1013%, 1.13%, 113%, and 213% are all different values expressed as percentages. The correct answer, 113%, is one of the values represented in the diagram.

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  • 10. 
    Chapter 5 Surface AreaWhat object does this net form? - ProProfs

    Chapter 5 Surface AreaWhat object does this net form?

    • Rectangular prism

    • Triangular prism

    • Cylinder

    • Cube

    Correct Answer
    A. Cube
    Explanation
    The net shown in the question forms a cube. A cube is a three-dimensional shape with six congruent square faces. The net consists of six squares connected along their edges, which is a characteristic of a cube. Therefore, the correct answer is cube.

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  • 11. 
    What is the formula for determining the volume of a cylinder? - ProProfs

    What is the formula for determining the volume of a cylinder?

    • Lxwxh

    • Bxh

    • Pi x r2 x h

    • 2 x pi x r2

    Correct Answer
    A. Pi x r2 x h
    Explanation
    The formula for determining the volume of a cylinder is Pi x r2 x h. This formula represents the product of the area of the base of the cylinder (Pi x r2) and the height of the cylinder (h). By multiplying these two values together, we can calculate the volume of the cylinder. The other options provided (lxwxh, bxh, and 2 x pi x r2) do not correctly represent the formula for finding the volume of a cylinder.

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  • 12. 

    A/an _______ triangle has all three sides of equal length.

    Correct Answer
    equilateral, Equilateral
    Explanation
    An equilateral triangle is a triangle in which all three sides are equal in length. All three internal angles are also congruent to each other and are each 60°. Equilateral triangles are also equiangular, meaning that all three angles are equal.

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  • 13. 

    What is the BEST reason why a line graph is used to measure

    • Amount

    • Time

    • Large amounts

    • Percentage

    Correct Answer
    A. Time
    Explanation
    A line graph is used to measure time because it allows for the visualization of how a particular variable changes over a specific period. The x-axis represents time, while the y-axis represents the amount or value being measured. The line on the graph connects the data points, showing the progression of the variable over time. This makes it easier to identify trends, patterns, and changes in the variable over different time intervals.

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  • 14. 

    Determine the possible number (2) on the scale between 1 and 2 

    • 2

    • 1.4

    • 4

    • None of the above

    Correct Answer
    A. 1.4
    Explanation
    The possible number on the scale between 1 and 2 is 1.4. This is because 1.4 falls between 1 and 2 and is a valid number on the scale.

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  • 15. 

    A sale is going on at a sports store. A jersey is on sale for 20% off its original price of $250.00, plus GST of 5% what is the total cost of the jersey?

    • $210.00

    • $185.00

    • $200.00

    • $168.00

    Correct Answer
    A. $210.00
    Explanation
    The original price of the jersey is $250.00. The sale price is 20% off, which means it is discounted by $50.00 (20% of $250.00). So, the sale price of the jersey is $200.00 ($250.00 - $50.00). Additionally, GST of 5% is applied to the sale price, which is $10.00 (5% of $200.00). Therefore, the total cost of the jersey is $210.00 ($200.00 + $10.00).

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  • 16. 

    To measure the equality between a rate and a ratio is called a (n) __________________

    Correct Answer
    Proportion
    Equivalent comparison
    Explanation
    The correct answer is "Proportion". A proportion is a statement that two ratios are equal. It is used to compare two ratios and determine if they are equivalent or not. In this context, measuring the equality between a rate and a ratio can be done through a proportion. Therefore, the term "Proportion" accurately describes the process of comparing a rate and a ratio to determine their equality.

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  • 17. 

    Chapter 8: Integers What is the following answer? (+)(+)(+)(+) + (-)(-)(-)

    • -1

    • +1

    • 0

    • -7

    Correct Answer
    A. +1
    Explanation
    The given expression consists of four positive numbers being added together and three negative numbers being added together. When adding positive numbers, the result is always positive. When adding negative numbers, the result is negative. Since there are four positive numbers and three negative numbers, the overall result will be positive. Therefore, the correct answer is +1.

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  • 18. 

    What is the BEST reason why a pictograph is used to measure?

    • Amounts

    • Time

    • Percents

    • Large amounts

    Correct Answer
    A. Large amounts
    Explanation
    A pictograph is used to measure large amounts because it provides a visual representation of data that is easy to interpret. Pictographs use pictures or symbols to represent quantities, making it easier to understand the magnitude of large numbers. This type of graph is especially useful when dealing with data that involves counting or comparing large quantities, as it allows for a quick and intuitive understanding of the information being presented.

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  • 19. 

    Chapter 3 Pythagorean Relationship What is the following square root of x if x= 506

    • 50.6

    • 22.2

    • 24.2

    • 22.4

    Correct Answer
    A. 22.4
    Explanation
    The square root of 506 is approximately 22.4. To find the square root, we need to find a number that, when multiplied by itself, equals 506. By using a calculator or estimation, we can determine that 22.4 multiplied by itself is approximately equal to 506. Therefore, the correct answer is 22.4.

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  • 20. 

    Three different kinds of pizzas have slices represented as the ratio: 3:6:12 Which of the following is an equal proportion?

    • 6:36:144

    • 12:24:72

    • 450:900:1800

    • 15:27:75

    Correct Answer
    A. 450:900:1800
    Explanation
    The original ratio is 3:6:12. This ratio can be simplified by dividing all parts by 3, giving 1:2:4. Multiplying each part of the simplified ratio by 450 gives 450:900:1800. This is an equivalent ratio to the original ratio because each part has been multiplied by the same factor. The other options are not equivalent ratios because they do not maintain the same proportions as the original ratio.

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  • 21. 

    The Pythagorean theorem is _________________________ which is the formula used to measure the hypotenuse.

    Correct Answer
    a2+b2=c2
    a squared plus b squared equals c squared
    Explanation
    The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides. This can be represented by the formula a^2 + b^2 = c^2, where a and b are the lengths of the two legs of the triangle, and c is the length of the hypotenuse.

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  • 22. 

    Determine the quotient of 3/4 divided by 6/5 in loswet terms

    • 5/8

    • 15/24

    • 5/6

    • 12/24

    Correct Answer
    A. 5/8
    Explanation
    To find the quotient of two fractions, we need to multiply the first fraction by the reciprocal of the second fraction. In this case, we have (3/4) ÷ (6/5). The reciprocal of 6/5 is 5/6. So, we can rewrite the expression as (3/4) * (5/6). Multiplying the numerators gives us 15, and multiplying the denominators gives us 24. Therefore, the quotient of 3/4 divided by 6/5 is 15/24, which is equivalent to 5/8.

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  • 23. 

    Determine side "b" is a= 7cm, and c= 22cm of the right triangle:

    • 435cm

    • 43.5cm

    • 20.8cm

    • 22.5cm

    Correct Answer
    A. 20.8cm
    Explanation
    The length of side "b" in a right triangle can be determined using the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (side c) is equal to the sum of the squares of the other two sides (a and b). In this case, we are given that side a is 7cm and side c is 22cm. By rearranging the formula, we can solve for side b: b^2 = c^2 - a^2. Plugging in the given values, we get b^2 = 22^2 - 7^2. Simplifying, we find that b^2 = 484 - 49, which is equal to 435. Taking the square root of 435, we get approximately 20.8cm. Therefore, the correct answer is 20.8cm.

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  • 24. 

    Chapter 6 Fraction operationsdetermine 5/6+5/6+5/6+5/6 round your answer in lowest terms

    • 5/6

    • 20/24

    • 0.83

    • 10/12

    Correct Answer
    A. 5/6
    Explanation
    The given question is asking to determine the sum of four fractions, 5/6, 5/6, 5/6, and 5/6, and round the answer in lowest terms. To find the sum, we add the numerators (5+5+5+5) which equals 20, and keep the denominator the same (6). So, the sum is 20/6. To simplify the fraction to lowest terms, we divide both the numerator and denominator by their greatest common divisor, which is 2. Dividing 20 by 2 gives us 10, and dividing 6 by 2 gives us 3. Therefore, the simplified fraction is 10/3, which is equivalent to 3 and 1/3.

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  • 25. 

    Chapter 2 Rates, Ratios, and Proportions At a supermarket, there is a sale of a 4L jug of juice for $3.99, a 2.5L bottle of Pop for $2.49, and a 900mL bottle of soda for $1.99. Which of the following is the best buy? (hint; convert L to mL)

    • Bottle of Pop

    • Bottle of Soda

    • Jug of Juice

    Correct Answer
    A. Bottle of Pop
    Explanation
    For the 4L jug of juice: Price per mL = Total price / Total volume = $3.99 / (4L * 1000 mL/L) (converting liters to milliliters) = $3.99 / 4000 mL = $0.0009975/mL
    For the 2.5L bottle of pop: Price per mL = Total price / Total volume = $2.49 / (2.5L * 1000 mL/L) = $2.49 / 2500 mL = $0.000996/mL
    For the 900mL bottle of soda: Price per mL = Total price / Total volume = $1.99 / 900 mL = $0.002211/mL
    Comparing the prices per milliliter, we find that the 2.5L bottle of pop has the lowest price per milliliter, making it the best buy.

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  • 26. 

    The formula to find the surface area of a ___________ prism is BxH/2

    Correct Answer
    triangular prism
    Explanation
    The formula to find the surface area of a triangular prism is BxH/2, where B represents the base area of the triangular prism and H represents the height of the triangular prism. This formula is used specifically for triangular prisms because their shape consists of two triangular bases and three rectangular faces connecting them. By multiplying the base area by the height and dividing it by 2, we can calculate the surface area of a triangular prism.

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  • 27. 

    Chapter 7 VolumeWhat is the formula for determining volume of a prism?

    • Lxwxh

    • Volume is used on T.V!

    • BxH/2

    • BxH

    Correct Answer
    A. BxH
    Explanation
    The formula for determining the volume of a prism is BxH, where B represents the area of the base and H represents the height of the prism. This formula is commonly used to calculate the amount of space occupied by a three-dimensional object with a uniform cross-section.

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  • 28. 

    Which of the following integer operations is equal to  (-23.8)

    • [1/4x 1/5] + (+4)+(-1) x 2

    • 1/4+1/5x [(-4)+(1)] x 2

    • [4+(-1)] x 2 divided by 1/5 x 1/4

    • 2x[(-4)+(+1)] divided by 1/4+1/5

    Correct Answer
    A. 2x[(-4)+(+1)] divided by 1/4+1/5
  • 29. 

    Determine 5/6 x 6

    • 10/72

    • 6/30

    • 5/35

    • 5

    Correct Answer
    A. 5
  • 30. 

    Find the following answer(-8)x(+2) divided by (+4)+(-5)+[(4+-8)]

    • (-23)

    • (-13)

    • (-21)

    • (-32)

    Correct Answer
    A. (-21)
    Explanation
    To solve this expression, we need to follow the order of operations (PEMDAS/BODMAS). First, we calculate the expression inside the brackets: (4 + (-8)) = -4. Then, we simplify the expression: (-8) x (+2) divided by (+4) + (-5) + (-4). Multiplying -8 and 2 gives -16. Next, we add -5 and -4 to get -9. Finally, we divide -16 by 9 and add 4, resulting in -21. Therefore, the correct answer is (-21).

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  • Dec 06, 2024
    Quiz Edited by
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  • Jul 04, 2010
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