Percentage of the whole

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Slide 1: Tekstslide

WiskundeMiddelbare schoolvwoLeerjaar 1

In deze les zitten 17 slides, met interactieve quizzen en tekstslides.

Lesduur is: 50 min

Onderdelen in deze les

Percentage of the whole

Slide 1 - Tekstslide

During the promotion week at Sportshop "Fairplay," you get a 17.5% discount on all items. Zhara buys the items in the photo, where you can see the prices before the promotion week. How much would Zhara have to pay during the promotion week?

Slide 2 - Tekstslide

during the promotion week, Zhara has to pay €54,39.

Slide 3 - Tekstslide

during the promotion week, Zhara has to pay €54,39.

Slide 4 - Tekstslide

Planning

-Review last lessons

-Learning objectives

- Explanation of new theory

-Practice

Slide 5 - Tekstslide

Percentage

a percentage represents a fraction out of 100.

Percentages can also be represented in decimal or fraction form

Slide 6 - Tekstslide

Calculate 40% of 78

Slide 7 - Open vraag

Percentage of the whole

Example:

If 17 out of 53 students like soccer, what percentage is that?

Slide 8 - Tekstslide

Percentage of the whole

Example:

If 17 out of 53 students like soccer, what percentage is that?

p e r c e n t a g e = \frac{​ ( p a r t ) ​ ​}{​ w h o l e ​} \cdot 100

Slide 9 - Tekstslide

Percentage of the whole

Example:

If 17 out of 53 students like soccer, what percentage is that?

p e r c e n t a g e = \frac{​ ( p a r t ) ​ ​}{​ w h o l e ​} \cdot 100

p e r c e n t a g e = \frac{​ 1 7 ​ ​}{​ 5 3 ​} \cdot 100

Slide 10 - Tekstslide

Percentage of the whole

Example:

If 17 out of 53 students like soccer, what percentage is that?

p e r c e n t a g e = \frac{​ ( p a r t ) ​ ​}{​ w h o l e ​} \cdot 100

p e r c e n t a g e = \frac{​ 1 7 ​ ​}{​ 5 3 ​} \cdot 100 = 32, 1

Slide 11 - Tekstslide

Challenge:

If 40 out of 125 students prefer online learning, what percentage is that?

Slide 12 - Tekstslide

Challenge:

If 40 out of 125 students prefer online learning, what percentage is that?

p e r c e n t a g e = \frac{​ 1 7 ​ ​}{​ 1 2 5 ​} \cdot 100 = 13, 6

Slide 13 - Tekstslide

Example:

If 40 out of 125 students prefer online learning, what percentage is that?

p e r c e n t a g e = \frac{​ 1 7 ​ ​}{​ 1 2 5 ​} \cdot 100 = 13, 6

13,6% of the students prefer online learning

Slide 14 - Tekstslide

Find 28 out of 82 as a percentage

Slide 15 - Open vraag

Find 183 out of 185 as a percentage

Slide 16 - Open vraag

what is the difference between percentage of and percentage off?

Try Yourself!

Teams: Worsheet "Determine Percentage"

Slide 17 - Tekstslide

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Percentage of the whole

Onderdelen in deze les

Slide 1 - Tekstslide

Slide 2 - Tekstslide

Slide 3 - Tekstslide

Slide 4 - Tekstslide

Slide 5 - Tekstslide

Slide 6 - Tekstslide

Slide 7 - Open vraag

Slide 8 - Tekstslide

Slide 9 - Tekstslide

Slide 10 - Tekstslide

Slide 11 - Tekstslide

Slide 12 - Tekstslide

Slide 13 - Tekstslide

Slide 14 - Tekstslide

Slide 15 - Open vraag

Slide 16 - Open vraag

Slide 17 - Tekstslide

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