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QR Challenge: Rounding Numbers

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. 18.6 to the nearest unit19
2. 299.86 to the nearest ten300
3. 19.64 to the nearest tenth19.6
4. 20,710 to the nearest thousand21,000
5. 78.999 to the nearest hundredth79
6. 3099 to the nearest hundred3100
7. 30.9 to the nearest unit31
8. 10.659 to the nearest hundredth10.66
9. 100.9 to the nearest unit101
10. 9647.3 to the nearest thousand10000
11. 1276 to the nearest hundred1300
12. 364,578 to he nearest ten thousand360,000
13. 5.674 to the nearest hundredth5.67
14. 1,376,482 to the nearest million1,000,000
15. 2099.4 to the nearest unit2099
16. 3946.32 to the nearest tenth3946.3
17. 19,364 to the nearest hundred19,400
18. 201.201 to the nearest hundredth201.2
19. 80,946 to the nearest thousand81,000
20. 88.854 to the nearest hundredth88.85

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=18.6_to_the_nearest_unit

Question 1 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=299.86_to_the_nearest_ten

Question 2 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=19.64_to_the_nearest_tenth

Question 3 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=20,710_to_the_nearest_thousand

Question 4 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=78.999_to_the_nearest_hundredth

Question 5 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=3099_to_the_nearest_hundred

Question 6 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=30.9_to_the_nearest_unit

Question 7 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=10.659_to_the_nearest_hundredth

Question 8 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=100.9_to_the_nearest_unit

Question 9 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=9647.3_to_the_nearest_thousand

Question 10 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=1276_to_the_nearest_hundred

Question 11 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=364,578_to_he_nearest_ten_thousand

Question 12 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=5.674_to_the_nearest_hundredth

Question 13 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=1,376,482_to_the_nearest_million

Question 14 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=2099.4_to_the_nearest_unit

Question 15 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=3946.32_to_the_nearest_tenth

Question 16 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=19,364_to_the_nearest_hundred

Question 17 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=201.201_to_the_nearest_hundredth

Question 18 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=80,946_to_the_nearest_thousand

Question 19 (of 20)

 


Rounding Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=88.854_to_the_nearest_hundredth

Question 20 (of 20)