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QR Challenge: QR Code Math Challenge

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. question1 In scientific notation, 3.0 x 10-5 + 0.00000223.22 x 10-5
2. question2 A shop owner increased the selling price of a shirt from $20 to $26. By what percentage was the price increased?30
3. question3 3/4+0.85+20% =1.8
4. question4 Tom worked for 6 hours and was paid $5.50 per hour. He then went shopping and bought two magazines at $9.50 each and a pen at $8.25. How much money does Tom have left?$27.25
5. question5 Bill bought 1(3/4) pounds of Cheddar cheese, 3.75 pounds of blue cheese and 4(1/2) pounds of goat cheese. How many pounds of cheese did Bill buy?10
6. question6 In a certain school, 40% of all students are 8 years old or younger. The number of the remaining students is 120. How many students are 8 years old or younger?80
7. question7 1/5 of students in a school have no brothers or sisters. Of the remaining students, 40% have 1 brother or sister. What percent of all students have more than 1 brother or sister?48
8. question8 A car hire company offers two plans A and B. In plan A, a customer pays a flat fee of $20 for the day plus 5 cents for each kilometer. In plan B, a customer pays a flat fee of $15 for the day plus 7 cents for each kilometer. For how many kilometers would a customer pay the same amount for the two plans250
9. question9 Joe worked part time for x hours and earned y dollars. How much does he earn if he works z hours?yz/x
10. question10 In a science test, a class of 30 students had an average of 80. The 20 girls in the class had an average of 85. What is the average of the 10 boys in the class?70

 


QR Code Math Challenge: QR Challenge

https://www.classtools.net/QR/decode.php?text=question1-In-scientific-notation,-3.0-x-10-5-+-0.0000022

Question 1 (of 10)

 


QR Code Math Challenge: QR Challenge

https://www.classtools.net/QR/decode.php?text=question2-A-shop-owner-increased-the-selling-price-of-a-shirt-from-$20-to-$26.-By-what-percentage-was-the-price-increased?

Question 2 (of 10)

 


QR Code Math Challenge: QR Challenge

https://www.classtools.net/QR/decode.php?text=question3-3/4+0.85+20%-=

Question 3 (of 10)

 


QR Code Math Challenge: QR Challenge

https://www.classtools.net/QR/decode.php?text=question4-Tom-worked-for-6-hours-and-was-paid-$5.50-per-hour.-He-then-went-shopping-and-bought-two-magazines-at-$9.50-each-and-a-pen-at-$8.25.-How-much-money-does-Tom-have-left?

Question 4 (of 10)

 


QR Code Math Challenge: QR Challenge

https://www.classtools.net/QR/decode.php?text=question5--Bill-bought-1(3/4)-pounds-of-Cheddar-cheese,-3.75-pounds-of-blue-cheese-and-4(1/2)-pounds-of-goat-cheese.-How-many-pounds-of-cheese-did-Bill-buy?

Question 5 (of 10)

 


QR Code Math Challenge: QR Challenge

https://www.classtools.net/QR/decode.php?text=question6-In-a-certain-school,-40%-of-all-students-are-8-years-old-or-younger.-The-number-of-the-remaining-students-is-120.-How-many-students-are-8-years-old-or-younger?

Question 6 (of 10)

 


QR Code Math Challenge: QR Challenge

https://www.classtools.net/QR/decode.php?text=question7-1/5-of-students-in-a-school-have-no-brothers-or-sisters.-Of-the-remaining-students,-40%-have-1-brother-or-sister.-What-percent-of-all-students-have-more-than-1-brother-or-sister?

Question 7 (of 10)

 


QR Code Math Challenge: QR Challenge

https://www.classtools.net/QR/decode.php?text=question8-A-car-hire-company-offers-two-plans-A-and-B.-In-plan-A,-a-customer-pays-a-flat-fee-of-$20-for-the-day-plus-5-cents-for-each-kilometer.-In-plan-B,-a-customer-pays-a-flat-fee-of-$15-for-the-day-plus-7-cents-for-each-kilometer.-For-how-many-kilometers-would-a-customer-pay-the-same-amount-for-the-two-plans

Question 8 (of 10)

 


QR Code Math Challenge: QR Challenge

https://www.classtools.net/QR/decode.php?text=question9-Joe-worked-part-time-for-x-hours-and-earned-y-dollars.-How-much-does-he-earn-if-he-works-z-hours?

Question 9 (of 10)

 


QR Code Math Challenge: QR Challenge

https://www.classtools.net/QR/decode.php?text=question10-In-a-science-test,-a-class-of-30-students-had-an-average-of-80.-The-20-girls-in-the-class-had-an-average-of-85.-What-is-the-average-of-the-10-boys-in-the-class?

Question 10 (of 10)