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QR Challenge: Counting money, addition, and subtraction

Created using the ClassTools QR Treasure Hunt Generator

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. James sold 11 cups of le,onade. How much money did he make? $0.55
2. Martin has $8.00. He buys his friend a birthday present that costs $6.20. How much money does he have left? $1.80
3. Gavin has a box with 164 crayons in it. 72 of the crayons are Broken. How many are not broken? 92
4. Jenna bought a new camera. She took 24 pictures of birds, 16 pictures of squirrels and 7 pictures of deer. How many pictures did she take in all? 47
5. Pat has three quarters, a dime and four nickels. How much money does he have in all? $1.05
6. Subtract 671 from 802. 131

 



Counting money, addition, and subtraction: QR Challenge

https://www.classtools.net/QR/decode.php?text=James-sold-11-cups-of-le,onade.-How-much-money-did-he-make?

Question 1 (of 6)

 



Counting money, addition, and subtraction: QR Challenge

https://www.classtools.net/QR/decode.php?text=Martin-has-$8.00.-He-buys-his-friend-a-birthday-present--that-costs-$6.20.-How-much-money-does-he-have-left?

Question 2 (of 6)

 



Counting money, addition, and subtraction: QR Challenge

https://www.classtools.net/QR/decode.php?text=Gavin-has-a-box-with-164-crayons-in-it.-72-of-the-crayons-are-Broken.-How-many-are-not-broken?

Question 3 (of 6)

 



Counting money, addition, and subtraction: QR Challenge

https://www.classtools.net/QR/decode.php?text=Jenna-bought-a-new-camera.-She-took-24-pictures-of-birds,-16-pictures-of-squirrels-and-7-pictures-of-deer.-How-many-pictures-did-she-take-in-all?

Question 4 (of 6)

 



Counting money, addition, and subtraction: QR Challenge

https://www.classtools.net/QR/decode.php?text=Pat-has-three-quarters,-a-dime-and-four-nickels.-How-much-money-does-he-have-in-all?

Question 5 (of 6)

 



Counting money, addition, and subtraction: QR Challenge

https://www.classtools.net/QR/decode.php?text=Subtract-671-from-802.

Question 6 (of 6)