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QR Challenge: Expressions with 2 Operations

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. (3 x p) + 52115
2. (20 x p) - 29391
3. 432 - (2 x p)390
4. (3 x p) + (4 x 64)319
5. (8 + r) x 363
6. 196 - (4 x r)144
7. (5 x r) + 97162
8. (9 x r) - (2 x 52)13
9. nine times a number, minus six(9xn)-6
10. seven less than a number times three(3xn)-7 or (n-7)x3
11. four more than a number, times twelve(n+4)x12
12. eight plus a number times sixteen8+(nx16) or (8+n)x16

 



Expressions with 2 Operations: QR Challenge

https://www.classtools.net/QR/decode.php?text=Expressions with 2 Operations
Q1/12:

(3 x p) + 52&choe=UTF-8

Question 1 (of 12)

 



Expressions with 2 Operations: QR Challenge

https://www.classtools.net/QR/decode.php?text=Expressions with 2 Operations
Q2/12:

(20 x p) - 29&choe=UTF-8

Question 2 (of 12)

 



Expressions with 2 Operations: QR Challenge

https://www.classtools.net/QR/decode.php?text=Expressions with 2 Operations
Q3/12:

432 - (2 x p)&choe=UTF-8

Question 3 (of 12)

 



Expressions with 2 Operations: QR Challenge

https://www.classtools.net/QR/decode.php?text=Expressions with 2 Operations
Q4/12:

(3 x p) + (4 x 64)&choe=UTF-8

Question 4 (of 12)

 



Expressions with 2 Operations: QR Challenge

https://www.classtools.net/QR/decode.php?text=Expressions with 2 Operations
Q5/12:

(8 + r) x 3&choe=UTF-8

Question 5 (of 12)

 



Expressions with 2 Operations: QR Challenge

https://www.classtools.net/QR/decode.php?text=Expressions with 2 Operations
Q6/12:

196 - (4 x r)&choe=UTF-8

Question 6 (of 12)

 



Expressions with 2 Operations: QR Challenge

https://www.classtools.net/QR/decode.php?text=Expressions with 2 Operations
Q7/12:

(5 x r) + 97&choe=UTF-8

Question 7 (of 12)

 



Expressions with 2 Operations: QR Challenge

https://www.classtools.net/QR/decode.php?text=Expressions with 2 Operations
Q8/12:

(9 x r) - (2 x 52)&choe=UTF-8

Question 8 (of 12)

 



Expressions with 2 Operations: QR Challenge

https://www.classtools.net/QR/decode.php?text=Expressions with 2 Operations
Q9/12:

nine times a number, minus six&choe=UTF-8

Question 9 (of 12)

 



Expressions with 2 Operations: QR Challenge

https://www.classtools.net/QR/decode.php?text=Expressions with 2 Operations
Q10/12:

seven less than a number times three&choe=UTF-8

Question 10 (of 12)

 



Expressions with 2 Operations: QR Challenge

https://www.classtools.net/QR/decode.php?text=Expressions with 2 Operations
Q11/12:

four more than a number, times twelve&choe=UTF-8

Question 11 (of 12)

 



Expressions with 2 Operations: QR Challenge

https://www.classtools.net/QR/decode.php?text=Expressions with 2 Operations
Q12/12:

eight plus a number times sixteen&choe=UTF-8

Question 12 (of 12)