Increase and Decrease an Amount by a Percentage

A lesson about increasing or decreasing an amount by a Percentage using a decimal multiplier.

Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

  • Click "Close Video"
  • Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Increase and Decrease an Amount by a Percentage

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Question 1

Question 2

Question 3

Q1.Increase 70 by 35%

1/3

Q2.Decrease 225 by 75%

2/3

Q3.Q3) An adult ticket for the cinema costs £12.80. A child ticket is half the price of an adult ticket. Mr and Mrs Smith and their six children go to see a movie. Mrs Smith has a voucher for 22% off. How much money does she save?

3/3

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Increase and Decrease an Amount by a Percentage

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Question 1

Question 2

Question 3

Q1.Increase 70 by 35%

1/3

Q2.Decrease 225 by 75%

2/3

Q3.Q3) An adult ticket for the cinema costs £12.80. A child ticket is half the price of an adult ticket. Mr and Mrs Smith and their six children go to see a movie. Mrs Smith has a voucher for 22% off. How much money does she save?

3/3

Lesson summary: Increase and Decrease an Amount by a Percentage

It looks like you have not completed the quiz.

To share your results with your teacher please complete the quiz.

Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Jog

On the spot:
Dance

Take part in The Big Ask.

The Children's Commissioner for England wants to know what matters to young people.

Share your views and have your voice heard.