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QR Challenge: Adding and Subtracting Fractions

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. Write in the missing numerator and denominators that make these fraction pairs equivalent. 2/4 = ____/84
2. Write in the missing numerator and denominators that make these fraction pairs equivalent 2/5=4/_____10
3. Give the lowest term fraction: 54/723/4
4. Give the lowest term fraction: 35/701/2
5. Add the following: 4/12 +7/1211/12
6. Add the following: 2/6 + 3/65/6
7. Subtract the following: 6/6-5/61/6
8. Subtract the following: 14/15 – 8/156/15
9. Add the following: 3/5 + 1/107/10
10. Add the following: 3/4 + 1/8 7/8
11. Subtract the following: 11/12 -3/65/12
12. Subtract the following: 7/10 – 1/51/2 or 5/10
13. Subtract the following: 2 5/6 – 1 1/39/6 or 1 ½ or 1 3/6
14. Express the fraction as a whole number or a mixed number 72/107 1/5 or 7 1/10
15. Express the fraction as a whole number or a mixed number 34/56 4/5

 


Adding and Subtracting Fractions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Write-in-the-missing-numerator-and-denominators-that-make-these-fraction-pairs-equivalent.-2/4-=-____/8

Question 1 (of 15)

 


Adding and Subtracting Fractions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Write-in-the-missing-numerator-and-denominators-that-make-these-fraction-pairs-equivalent-2/5=4/_____

Question 2 (of 15)

 


Adding and Subtracting Fractions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Give-the-lowest-term-fraction:-54/72

Question 3 (of 15)

 


Adding and Subtracting Fractions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Give-the-lowest-term-fraction:-35/70

Question 4 (of 15)

 


Adding and Subtracting Fractions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Add-the-following:-4/12-+7/12

Question 5 (of 15)

 


Adding and Subtracting Fractions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Add-the-following:-2/6-+-3/6

Question 6 (of 15)

 


Adding and Subtracting Fractions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Subtract-the-following:-6/6-5/6

Question 7 (of 15)

 


Adding and Subtracting Fractions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Subtract-the-following:-14/15-–-8/15

Question 8 (of 15)

 


Adding and Subtracting Fractions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Add-the-following:-3/5-+-1/10

Question 9 (of 15)

 


Adding and Subtracting Fractions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Add-the-following:-3/4-+-1/8

Question 10 (of 15)

 


Adding and Subtracting Fractions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Subtract-the-following:-11/12--3/6

Question 11 (of 15)

 


Adding and Subtracting Fractions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Subtract-the-following:-7/10-–-1/5

Question 12 (of 15)

 


Adding and Subtracting Fractions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Subtract-the-following:-2-5/6-–-1-1/3

Question 13 (of 15)

 


Adding and Subtracting Fractions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Express-the-fraction-as-a-whole-number-or-a-mixed-number-72/10

Question 14 (of 15)

 


Adding and Subtracting Fractions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Express-the-fraction-as-a-whole-number-or-a-mixed-number-34/5

Question 15 (of 15)