Percents Review TEK 7.4D
Presentation
•
Mathematics
•
8th Grade
•
Practice Problem
•
Medium
+1
Standards-aligned
Jose Merino
Used 2+ times
FREE Resource
4 Slides • 12 Questions
1
GOALS: Understand part to whole relationship, understand y = kx, understand proportions
Solving Problems with Percents
2
Dropdown
The
The
The
3
Drag and Drop
4
Drag and Drop
5
Math Response
Solve the proportion:
90036=100x
6
Math Response
In a recent survey, 230 people, or 40% of the people surveyed, said that hamburgers were their favorite fast food to eat. How many people were surveyed
7
Percent Change
Example
At the local farmer's market, strawberries are normally $5, but this week they are on sale for $4. What is the percent decrease in price?
8
Step 2:
Determine the difference between the prices.
5 - 4 = 1
The difference is $1
Step 1:
Steps to Solve Percent Change
9
Steps to Solve Percent Change
Find an equivalent ratio out of 100.
Step 3:
10
Math Response
An organization sent out 196 invitations
to a fundraiser. Of those, invited 280
attended. What percent of the people
invited attended the fundraiser?
11
Math Response
A baby elephant was born last month at
the city zoo. When the baby elephant was
born he weighed 260 pounds. At the end
of the first month the baby weighed 338
pounds. What is the percent of increase in
the baby’s weight?
12
Math Response
Jose was playing a basketball shooting
game in the arcade. He made 15 shots and
missed 25 shots. What is the percentage of
shots Jose made in the basketball game?
13
Multiple Choice
At a local grocery store, hamburger meat
is normally $3.50 per pound, but this
week hamburger meat is on sale for $2.10
per pound. What is the percent decrease
in the price?
14%
34%
60%
40%
14
Multiple Choice
A football team won 16 games last year.
This year the team won 20 games. What
is the percent increase in the number of
games the team won from last year to this
year?
20%
25%
80%
125%
15
Multiple Choice
Ms. Zepeda said that 30% of her students
made a B on the test last week. If 33
students made a B on the test, how many
total students does Ms. Zepeda have?
30
63
110
99
16
Math Response
A local car dealer has 250 cars on the lot.
30% of the cars are SUVs. How many of
the cars are NOT SUVs?
GOALS: Understand part to whole relationship, understand y = kx, understand proportions
Solving Problems with Percents
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