Year 9 percentage change and simple interest quiz to download as PDF

This Year 9 percentage change and simple interest quiz has 10 short questions for pupils aged 13-14. Type your answer, check it straight away and read the explanation when you get one wrong.

Year 9 percentage change and simple interest quiz: the 10 questions

What is the multiplier for an increase of 7%?
Decrease 90 by 10%.
Increase 60 by 25%.
Percentage change from 50 to 60?
Simple interest on £200 at 3% for 5 years (in £)?
A price after a 50% increase is £90. Original?
What does the letter P stand for in the simple interest formula?
A sale price is 0.8 times the original. What is the percentage discount?
£1000 at 2% simple interest for 1 year. Interest?
Percentage decrease from 80 to 60?

How to use this Year 9 percentage change and simple interest quiz

First, answer every question without a calculator unless the question says so. Then check your answer and read the short explanation. If you get fewer than 7 right, revise the percentage change and simple interest lesson and try again later. After that, try the multiple choice questions or the percentage change and simple interest worksheet.

Finally, take this quiz again before a test, because quick retrieval helps you remember. Moreover, all the pages of this chapter work together, so you can move between them at any time. For example, many pupils read the lesson on Monday, practise on Wednesday and test themselves on Friday.