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QR Challenge: Rounding Large 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. Round 34 568 to the nearest thousand35 000
2. Round 27 848 to the nearest hundred27 800
3. Round 85 981 to the nearest hundred86 000
4. Round 8 449 to the nearest ten8 450
5. Round 19 432 to the nearest hundred19 400
6. Round 49 599 to the nearest thousand50 000
7. Round 962 to the nearest hundred1 000
8. Round 87 281 to the nearest hundred87 300
9. Round 38 274 to the nearest thousand38 000
10. Round 49 919 to the nearest hundred49 900
11. Round 40 050 to the nearest hundred40 100
12. Round 67 404 to the nearest thousand67 000
13. Round 32 874 to the nearest ten32 870
14. Round 512 to the nearest hundred500
15. Round 99 999 to the nearest ten100 000
16. Round 53 545 to the nearest hundred53 500
17. Round 12 128 to the nearest hundred12 100
18. Round 65 488 to the nearest thousand65 000
19. Round 78 246 to the nearest hundred78 200
20. Round 43 543 to the nearest thousand44 000

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_34_568_to_the_nearest_thousand

Question 1 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_27_848_to_the_nearest_hundred

Question 2 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_85_981_to_the_nearest_hundred

Question 3 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_8_449_to_the_nearest_ten

Question 4 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_19_432_to_the_nearest_hundred

Question 5 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_49_599_to_the_nearest_thousand

Question 6 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_962_to_the_nearest_hundred

Question 7 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_87_281_to_the_nearest_hundred

Question 8 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_38_274_to_the_nearest_thousand

Question 9 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_49_919_to_the_nearest_hundred

Question 10 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_40_050_to_the_nearest_hundred

Question 11 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_67_404_to_the_nearest_thousand

Question 12 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_32_874_to_the_nearest_ten

Question 13 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_512_to_the_nearest_hundred

Question 14 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_99_999_to_the_nearest_ten

Question 15 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_53_545_to_the_nearest_hundred

Question 16 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_12_128_to_the_nearest_hundred

Question 17 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_65_488_to_the_nearest_thousand

Question 18 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_78_246_to_the_nearest_hundred

Question 19 (of 20)

 


Rounding Large Numbers: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_43_543_to_the_nearest_thousand

Question 20 (of 20)