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QR Challenge: Adding, Subtracting, Multiplying Decimals

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. 0.8 + 0.8-
2. 3.4 + 4.6-
3. 0.6 X 0.7-
4. 476.13 - 85.74-
5. 0.74 - 0.37-
6. 84.25 - 9.75-
7. 8.07 - 2.062-
8. 0.68 X .8-
9. 0.03 X 0.7-
10. 9.6 X .5-
11. 2.4 X .3-
12. 20.4 - 10.31-
13. 0.94 + .07-
14. 7.79 - 0.37-
15. At the beginning of a trip, the odometer read 38152.9. At the end of the trip it read 38427.3. How long was the trip?-
16. Fred bought a pair of shoes for $28.95, a pair of pants for $18.50 and a shirt for $13.95. How much did he spend?-

 


Adding, Subtracting, Multiplying Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Adding, Subtracting, Multiplying Decimals
Q1/16:

0.8 + 0.8&choe=UTF-8

Question 1 (of 16)

 


Adding, Subtracting, Multiplying Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Adding, Subtracting, Multiplying Decimals
Q2/16:

3.4 + 4.6&choe=UTF-8

Question 2 (of 16)

 


Adding, Subtracting, Multiplying Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Adding, Subtracting, Multiplying Decimals
Q3/16:

0.6 X 0.7&choe=UTF-8

Question 3 (of 16)

 


Adding, Subtracting, Multiplying Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Adding, Subtracting, Multiplying Decimals
Q4/16:

476.13 - 85.74&choe=UTF-8

Question 4 (of 16)

 


Adding, Subtracting, Multiplying Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Adding, Subtracting, Multiplying Decimals
Q5/16:

0.74 - 0.37&choe=UTF-8

Question 5 (of 16)

 


Adding, Subtracting, Multiplying Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Adding, Subtracting, Multiplying Decimals
Q6/16:

84.25 - 9.75&choe=UTF-8

Question 6 (of 16)

 


Adding, Subtracting, Multiplying Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Adding, Subtracting, Multiplying Decimals
Q7/16:

8.07 - 2.062&choe=UTF-8

Question 7 (of 16)

 


Adding, Subtracting, Multiplying Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Adding, Subtracting, Multiplying Decimals
Q8/16:

0.68 X .8&choe=UTF-8

Question 8 (of 16)

 


Adding, Subtracting, Multiplying Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Adding, Subtracting, Multiplying Decimals
Q9/16:

0.03 X 0.7&choe=UTF-8

Question 9 (of 16)

 


Adding, Subtracting, Multiplying Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Adding, Subtracting, Multiplying Decimals
Q10/16:

9.6 X .5&choe=UTF-8

Question 10 (of 16)

 


Adding, Subtracting, Multiplying Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Adding, Subtracting, Multiplying Decimals
Q11/16:

2.4 X .3&choe=UTF-8

Question 11 (of 16)

 


Adding, Subtracting, Multiplying Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Adding, Subtracting, Multiplying Decimals
Q12/16:

20.4 - 10.31&choe=UTF-8

Question 12 (of 16)

 


Adding, Subtracting, Multiplying Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Adding, Subtracting, Multiplying Decimals
Q13/16:

0.94 + .07&choe=UTF-8

Question 13 (of 16)

 


Adding, Subtracting, Multiplying Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Adding, Subtracting, Multiplying Decimals
Q14/16:

7.79 - 0.37&choe=UTF-8

Question 14 (of 16)

 


Adding, Subtracting, Multiplying Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Adding, Subtracting, Multiplying Decimals
Q15/16:

At the beginning of a trip, the odometer read 38152.9. At the end of the trip it read 38427.3. How long was the trip?&choe=UTF-8

Question 15 (of 16)

 


Adding, Subtracting, Multiplying Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=Adding, Subtracting, Multiplying Decimals
Q16/16:

Fred bought a pair of shoes for $28.95, a pair of pants for $18.50 and a shirt for $13.95. How much did he spend?&choe=UTF-8

Question 16 (of 16)