Grade Eight Achievement Indicators: Sample Assessment Questions
N3: Demonstrate an understanding of percents greater than or equal to 0%.
[CN, PS, R, V, ME]
Achievement Indicator:
Provide a context where a percent may be more than 100% or between 0% and 1%.
1) The average attendance at a regular season home game for the Saint John Sea Dogs
in 2003 was 2200. In 2009, there was a 120% increase in attendance. On average, how
many people attended the Seas Dogs home games in 2009?
2) A number between 20 and 30 is 150% of another number. What could the second
number be?
3) About 0.9% of the Canadian population is Sikh. If Canada’s population is about 34
million, about how many people are Sikh?
4) About 0.8% of Canada’s exports go to Germany. For each million dollars in exports,
how many dollars’ worth go to Germany?
Achievement Indicator:
Represent a given fractional percent using grid paper.
1) Represent 37.5% on the grid paper provided.
Assessments Compiled by: A. Belyea, G. Fifield, S. Gignac, A. Holland, M. Kirkpatrick, J. Little, S. McVicar, J. Porter, S. Spinks Feb. 15th, 2010
Grade Eight Achievement Indicators: Sample Assessment Questions
2) How could you use a thousandths grid to show 0.6% and 4.6%? Show your work and
explain your thinking.
Achievement Indicator:
Represent a given percent greater than 100 using grid paper.
1) Represent 284% on the grid paper provided.
2) Choose 2 different percents greater than 100% and show how they could be
represented using grid paper.
Assessments Compiled by: A. Belyea, G. Fifield, S. Gignac, A. Holland, M. Kirkpatrick, J. Little, S. McVicar, J. Porter, S. Spinks Feb. 15th, 2010
Grade Eight Achievement Indicators: Sample Assessment Questions
Achievement Indicator:
Determine the percent represented by a given shaded region on a grid, and record
it in decimal, fractional and percent form.
1) Each hundred chart represents 100%. What fraction of the hundred chart below is
shaded? Write your answer as a fraction, a decimal and a percent.
2) Use a fraction, a decimal, and a percent to describe the shaded area. A single full
grid represents a100%.
Achievement Indicator:
Express a given percent in decimal or fractional form.
1) Which of the following is equivalent to 72%? Explain how you know.
a) 720
b) 0.72
c) 0.072
d) 7.2
2) The population of Abbotsford, BC, is 136% of the population of Kamloops, BC. Write
the percent as a fraction and as a decimal.
3) The percent of people with blood type A is 410% of the fraction of people with blood
type B. Write this percent as a fraction and a decimal.
Assessments Compiled by: A. Belyea, G. Fifield, S. Gignac, A. Holland, M. Kirkpatrick, J. Little, S. McVicar, J. Porter, S. Spinks Feb. 15th, 2010
Grade Eight Achievement Indicators: Sample Assessment Questions
Achievement Indicator:
Express a given decimal in percent or fractional form.
1) Write the number 0.55 as a fraction and a percent.
2) Express 0.005 in fractional form and as a percent.
Achievement Indicator:
Express a given fraction in decimal or percent form.
1) Write
1
as a decimal and a percent.
3
2) The fraction of people with blood type O is
9
the number of people with blood type B.
2
Write this as a decimal and a percent.
Achievement Indicator:
Solve a given problem involving percents.
1) The Saint John Sea Dogs play 68 games in a regular season. If they win 75% of their
games, how many wins will they have?
2) Geoff is 160 cm tall. Monique is 152 cm tall. Both Geoff and Monique are 13 years
old. An adult’s height is normally 107% of his or her height at age 13. How tall are Geoff
and Monique likely to be as adults?
3) A girl usually grows to be 125% of the height she was at age 9. If a girl is 132 cm tall
at age 9, what will her adult height likely be?
Achievement Indicator:
Solve a given problem involving combined percents.
1) Monica wants to buy an MP3 player. In a store flyer she sees a player that regularly
seels for $119.95. It is advertised at 20% off, but, because she lives in British Columbia,
she has to pay 5% GST and 7% PST. She has saved $115 from babysitting. Does she
have enough money to buy the MP3 player? Show your work and explain your thinking.
2) At the checkout, you hear a customer ask about a discount. The customer says, “I
would like you to take the 25% off the regular price before you calculate the 10% sales
tax.” The clerk says, “It doesn’t make any difference. If I calculate the sales tax, then take
off 25%, you will still pay the same.” Is the clerk correct? Show your work and explain
your thinking by providing an example.
Assessments Compiled by: A. Belyea, G. Fifield, S. Gignac, A. Holland, M. Kirkpatrick, J. Little, S. McVicar, J. Porter, S. Spinks Feb. 15th, 2010
Grade Eight Achievement Indicators: Sample Assessment Questions
Achievement Indicator:
Solve a given problem that involves finding the percent of a percent, e.g., a
population increased by 10% one year and then increased by 15% the next year.
Explain why there was not a 25% increase in population over the two years.
1) A school’s enrolment was 200 students in 2007. The population increased by 20% the
following year and then increased by 25% the next year. How many students are now
enrolled at the school?
2) A population of a group increased by 15% one year and then increased by 22% the
next year. Explain why there was not a 37% increase in population over the two years.
Provide an example to support your thinking.
Assessments Compiled by: A. Belyea, G. Fifield, S. Gignac, A. Holland, M. Kirkpatrick, J. Little, S. McVicar, J. Porter, S. Spinks Feb. 15th, 2010