Category 1: Definitions
What is a percent?
A number or ratio that can be expressed as a fraction out of 100.
Convert 1/4 to a percent.
Extra 100 Points - Solve using long division.
.25 x 100 = 25%
Convert .25 to a percent, using multiplication.
.25 x 100 = 25%
Solve the proportion:
5/8 = x/100
Extra 100 points - what are you solving for?
62.5%
Extra Points - solving the percent
A store is having a 20% off sale. If a shirt originally costs $50, what is the sale price?
Extra 100 Points - solve with a proportion.
$40
What is a proportion?
A ratio set equal to another ratio (solve for x).
Convert 5/8 to a percent.
Extra 100 Points - Solve using long division.
.625 x 100 = 62.5%
Convert .6 to a percent, using multiplication.
.6 x 100 = 60%
Solve the proportion:
x/70 = 30/100
Extra 100 points - what are you solving for?
21
Extra Points - solving for part
Dylan's test has 30 questions. He answered 24 questions correctly. What percent did he get correct?
Extra 100 Points - Solve with a proportion.
80%
What is a numerator?
The top number of a fraction - showing how many of the parts indicated by the denominator are taken.
Convert 3/5 to a percent.
Extra 100 Points - Solve using long division.
.6 x 100 = 60%
Convert .75 to a percent, using multiplication.
.75 x 100 = 75%
18/x = 60/100
Extra Points: what are you solving for?
30
Extra Points - solving for the whole
Maria earned $75 babysitting for 6 hours. What is her hourly rate?
Extra 100 Points - Solve using a proportion.
$12.50
What is a denominator?
Convert 2/3 to a percent.
Extra 100 Points - Solve using long division.
.66 x 100 = 66.6% (Repeating)
Convert .3 to a percent, using multiplication.
.3 x 100 = 30%
Solve the problem:
7/16 = x/100
Extra 100 points- what are you solving for?
43.75%
Extra Points - solving for percent
The school budget for a field trip is $5,000. If 75% of the budget is allocated for transportation, how much money is allocated for transportation?
Extra 100 Points - Solving using a proportion.
$3,750
What is a ratio?
The relationship or comparison between two numbers of the same unit. Compares values.
Convert 7/10 to a percent.
Extra 100 Points - Solve using long division.
.7 x 100 = 70%
Convert .9 to a percent, using multiplication.
.9 x 100 = 90%
Solve the proportion:
x/90 = 20/100
Extra 100 Points - what are you solving for?
18
Extra Points - solving for the part
John runs 2 miles in 15 minutes. How many miles can he run in 1 hour?
Extra 100 Points - solve using a proportion.
2/15 = 8/60
8 miles