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QR Challenge: Percentage increase and decrease quiz

Created using the ClassTools QR Treasure Hunt Generator

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Teacher Notes

A. Prior to the lesson:

1. Arrange students into groups. Each group needs at least ONE person who has a mobile device.

2. If their phone camera doesn't automatically detect and decode QR codes, ask students to

3. Print out the QR codes.

4. Cut them out and place them around your class / school.

B. The lesson:

1. Give each group a clipboard and a piece of paper so they can write down the decoded questions and their answers to them.

2. Explain to the students that the codes are hidden around the school. Each team will get ONE point for each question they correctly decode and copy down onto their sheet, and a further TWO points if they can then provide the correct answer and write this down underneath the question.

3. Away they go! The winner is the first team to return with the most correct answers in the time available. This could be within a lesson, or during a lunchbreak, or even over several days!

C. TIPS / OTHER IDEAS

4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.

Questions / Answers (teacher reference)

Question

Answer

1. Q1: What is the sale price of a £60 shirt with 20% off? 48
2. Q2: The cost of my monthly train ticket was £60. It went up by 25%. What is the new price? 75
3. Q3: I bought a painting for £200. I sold it for a 20% profit. What did I sell it for? 240
4. Q4: A vacuum cleaner is normally £300 but has 10% off in a sale. How much is it in the sale? 270
5. Q5: A t-shirt was £20 and was reduced by 25%. What is the new price of the t-shirt. £15
6. Q6: I bought a second hand car for £4800. I had to pay a 5% deposit. How much was the deposit? £240
7. Q7: The cost of a toy was reduced by 37.5% from £24. What is the new price of the toy?£15
8. Q8: My daily wage was £40. I got a 20% raise. What is my daily wage now? £48
9. Q9: I bought a TV for in a 10% sale. If the TV was £300, how much did it cost in the sale? 270
10. Q10: My daily wage is to be increased by 5%. If I get £120 a day, how much did my wage increase by? £6
11. Q11: Car insurance is £300 and is increase by 25%. How much was the increase? £75
12. Q12: A t-shirt was £64, with 25% reduced off it. How much is the t-shirt now? £48
13. Q13: I bought a mirror costing £200 and sold it on for 20% more. How much did I sell it for? £240

 


Percentage increase and decrease quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q1:-What-is-the-sale-price-of-a-£60-shirt-with-20%-off?

Question 1 (of 13)

 


Percentage increase and decrease quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q2:-The-cost-of-my-monthly-train-ticket-was-£60.-It-went-up-by-25%.-What-is-the-new-price?

Question 2 (of 13)

 


Percentage increase and decrease quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q3:-I-bought-a-painting-for-£200.-I-sold-it-for-a-20%-profit.-What-did-I-sell-it-for?

Question 3 (of 13)

 


Percentage increase and decrease quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q4:-A-vacuum-cleaner-is-normally-£300-but-has-10%-off-in-a-sale.-How-much-is-it-in-the-sale?

Question 4 (of 13)

 


Percentage increase and decrease quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q5:-A-t-shirt-was-£20-and-was-reduced-by-25%.-What-is-the-new-price-of-the-t-shirt.

Question 5 (of 13)

 


Percentage increase and decrease quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q6:-I-bought-a-second-hand-car-for-£4800.-I-had-to-pay-a-5%-deposit.-How-much-was-the-deposit?

Question 6 (of 13)

 


Percentage increase and decrease quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q7:-The-cost-of-a-toy-was-reduced-by-37.5%-from-£24.-What-is-the-new-price-of-the-toy?

Question 7 (of 13)

 


Percentage increase and decrease quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q8:-My-daily-wage-was-£40.-I-got-a-20%-raise.-What-is-my-daily-wage-now?

Question 8 (of 13)

 


Percentage increase and decrease quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q9:-I-bought-a-TV-for-in-a-10%-sale.-If-the-TV-was-£300,-how-much-did-it-cost-in-the-sale?

Question 9 (of 13)

 


Percentage increase and decrease quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q10:-My-daily-wage-is-to-be-increased-by-5%.-If-I-get-£120-a-day,-how-much-did-my-wage-increase-by?

Question 10 (of 13)

 


Percentage increase and decrease quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q11:-Car-insurance-is-£300-and-is-increase-by-25%.-How-much-was-the-increase?

Question 11 (of 13)

 


Percentage increase and decrease quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q12:-A-t-shirt-was-£64,-with-25%-reduced-off-it.-How-much-is-the-t-shirt-now?

Question 12 (of 13)

 


Percentage increase and decrease quiz: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q13:-I-bought-a-mirror-costing-£200-and-sold-it-on-for-20%-more.-How-much-did-I-sell-it-for?

Question 13 (of 13)