Math 7/3.8 Part Whole Percent

​Math 7/3.8 Part Whole Percent

Vocabulary and Information to know:

Use the equation PART = PERCENT x WHOLE

Percent must be a decimal Solve for the unknown by multipling or divding.

​Stop! Answer this in your notebook and then click to next slide.

​#1
In a Grade 7 classroom of 45 students, 40% are girls.

How many girls are there in the classroom?

Reorder

Reorder the following

PART = PERCENT X WHOLE

• PART

• =

• 40%

• X

• 45 students

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Dropdown

​

Select answer

=​

Select answer

X​

Select answer

So there are ​

Select answer

girls in the classroom.

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​#2
There are 25 animals in the local shelter.
40% of the animals are dogs, the rest are cats.

How many cats are at the shelter?

Drag and Drop

Put the equation in the correct order.



​

Placeholder

​

Placeholder

​

Placeholder

​

Placeholder

​

Placeholder

Drag these tiles and drop them in the correct blank above

P

=

.40

x

25

Multiple Choice

There are 25 animals in the local shelter.
40% of the animals are dogs, the rest are cats.

How many cats are at the shelter?

• 15

• 10

• 5

• 20

​Stop! Answer this in your notebook and then click to next slide.

​#3
Elliot bought 30 eggs and Effah bought 20 eggs.

What percentage of the total number of eggs did Effah buy?

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​#4
In hopes of encouraging healthier snacks at school, Kwame brought in a tray of carrot sticks and apple slices to share.
The tray had a total of 35 snacks, of which 20% were carrot sticks.

How many carrot sticks did Kwame bring?

Multiple Choice

​#4
In hopes of encouraging healthier snacks at school, Kwame brought in a tray of carrot sticks and apple slices to share.
The tray had a total of 35 snacks, of which 20% were carrot sticks.

How many carrot sticks did Kwame bring?

• 7

• 15

• 1.75

• 9

​Stop! Answer this in your notebook and then click to next slide.

​#5
In a science test, Musa solved 42 correct and 18 incorrect answers.

What is the percentage of correct questions?

Multiple Choice

​#5
In a science test, Musa solved 42 correct and 18 incorrect answers.

What is the percentage of correct questions?

Which equation is correct to solve this problem?

• 42 = % x 60

• 18 = % x 60

• 18 = % x 42

• 42 = % x 18

Multiple Choice

​#5
In a science test, Musa solved 42 correct and 18 incorrect answers.

What is the percentage of correct questions?

• 70%

• 233%

• 30%

• 42%

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​#6
Nhyira is reading a book that is 180 pages long.
So far she has read 117 page.

What percent of the book has she read?

Dropdown

​#6
Nhyira is reading a book that is 180 pages long.

Select answer

of the book. which means she has NOT read ​

Select answer

of the book.

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​#7
Rabhya has read 80% of her book by reading 168 pages.

How long is her book?

Math Response

​#7
Rabhya has read 80% of her book by reading 168 pages.

How long is her book?

Type answer here

Correct Answer: 210

Deg^°

Rad

​Stop! Answer this in your notebook and then click to next slide.

​#8
There are 275 students attending summer camp.
220 of these students take the bus.

What percent of the students do not take the bus?

Reorder

Reorder the following to make the equation that could be used to solve this problem (it might be different that the one you made)

​#8
There are 275 students attending summer camp.
220 of these students take the bus.

What percent of the students do not take the bus?

• 220

• =

• %

• x

• 270

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Multiple Choice

​#8
There are 275 students attending summer camp.
220 of these students take the bus.

What percent of the students do not take the bus?

• 20%

• 80%

• 55%

• 44%

​Stop! Answer this in your notebook and then click to next slide.

​#9

75% of the magazines a bookstore carries are women's magazines. If 21 of the magazines are women's magazines, how many magazines does the bookstore carry?

Multiple Choice

​#9

75% of the magazines a bookstore carries are women's magazines.

If 21 of the magazines are women's magazines, how many magazines does the bookstore carry?

• 28

• 15.75

• 32

• 26

​Stop! Answer this in your notebook and then click to next slide.

​#10

When writing a report, Shirish completed 25% on
Monday by writing 4 pages.

How many pages was his entire report?

Math Response

​#10

When writing a report, Shirish completed 25% on
Monday by writing 4 pages.

How many pages was his entire report?

Type answer here

Correct Answer: 16

Deg^°

Rad

Poll

How you feel about finding the part- percent and whole in a story problem?

• Don't get it

• Doing ok

• Great

​Now go to Khan Academy and do the assignments:

Finding percents
Percent word problems                                          
Percents from fraction models