Ratios, Percents, Interest
Presentation
•
Mathematics
•
6th - 8th Grade
•
Practice Problem
•
Medium
Amy Dougherty
Used 1+ times
FREE Resource
1 Slide • 14 Questions
1
Ratios, Rates, Percents, and Interest
By Amy Dougherty
2
Multiple Choice
What is the definition of a ratio?
A number written as a product
A comparison of two quantities by division
A multiplication sentence
A number with a variable
3
Multiple Choice
What is a rate?
A comparison of two different quantities with different units
A measure of time
A number that cannot be simplified
A decimal written as a fraciton
4
Multiple Choice
What best describes a unit rate?
A ratio written as a percent
A rate with the denominator of one
A number that compares two fractions
A rate used only with money
5
Match
Match each percent to its decimal form
25%
75%
10%
50%
5%
0.25
0.75
0.1
0.5
0.05
0.25
0.75
0.1
0.5
0.05
6
Multiple Choice
A store sells 4 pencils for $1. What is the unit rate per pencil?
$4 per pencil
$0.25 per pencil
$1 per pencil
$0.10 per pencil
7
Multiple Choice
15% of 200
30
15
150
3
8
Reorder
What are the steps to find simple interest?
Identify the principal, rate, and time
Use the formula:
I = prt
Multiply the values together
Write the interest
9
Multiple Choice
You earn 4% simple interest on $300 for 2 years. How much interest will you earn?
$24
$20
$18
$30
10
Fill in the Blanks
The ratio of boys to girls is 2:3. If there are 12 girls, how many boys are there?
Type answer...
11
Match
Match the percent to its equivalent fraction:
10%
25%
50%
100%
20%
1/10
1/4
1/2
1
1/5
1/10
1/4
1/2
1
1/5
12
Multiple Choice
Which of the following is a rate?
9 oranges
18 students in 3 rows
10 miles
2 cookies
13
Multiple Choice
A jacket originally costs $80. It is on sale for 30% off. What is the discounted price?
$24
$56
$30
$50
14
Multiple Choice
What is the ratio equivalent of 5:10?
3:6
2:3
1:2
6:12
15
Match
Simplify the unit rates:
180 miles in 3 hours
90 miles in 3 hours
300 miles in 5 hours
160 miles in 4 hours
60 mph
30 mph
60 mph
40 mph
60 mph
30 mph
60 mph
40 mph
Ratios, Rates, Percents, and Interest
By Amy Dougherty
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