Topic 1.4 Percentages - 1

Topic 1
Percentages - 1
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Slide 1: Slide
EconomieMiddelbare schoolvwoLeerjaar 2

This lesson contains 15 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 50 min

Items in this lesson

Topic 1
Percentages - 1

Slide 1 - Slide

Agenda
  • Discuss Homework
  • Explanation Topic 1.4
  • Get to work! 

Slide 2 - Slide

Discuss Homework

Slide 3 - Slide

Learning goals
You will learn three different ways to calculate with percentages: table, formula or perunage

Slide 4 - Slide

Calculating Percentages
There are three ways to calculate percentages: 

  • Use a table
  • Formula 
  • Perunage

Slide 5 - Slide

A table

Slide 6 - Slide

A table

Slide 7 - Slide

A table

Slide 8 - Slide

A table

Slide 9 - Slide

Formula
Part (or amount) / 100 x percentage

1492 / 100 x 28 = 418 students

Slide 10 - Slide

Perunage
 Perunage = percentage : 100
Answer: 
28 : 100 = 0,28
0,28 x 1492 = 418

Slide 11 - Slide

Mirjam has bought a TV at the MediaMarkt. Normally the price is € 499.99. She got a 10% discount. What is the amount of discount that Mirjam received? Round off to two decimal places.

Slide 12 - Open question

Joost has a parttime job and earns € 65 per week. Per week he saves 25% of his earned money. How much money does Joost have left to do fun things? Round off to two decimal places.

Slide 13 - Open question

Barry earns € 8.45 per hour. He is getting a raise of 15%. How many euros is Barry going to earn more per hour after his raise? Round off to two decimal places.

Slide 14 - Open question

Get to work!

Do tasks from: Percentages -1


Questions? Raise your hand

Done? Work on another subject


Slide 15 - Slide