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QR Challenge: Rounding 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. 56.49 Round to the nearest hundredth 56.488
2. 42.1 Round to the nearest tenth 42.060
3. 94.9 Round to the nearest tenth 94.86
4. 9.39 Round to the nearest hundredth 9.391
5. 644.17 Round to the nearest hundredth 644.166
6. 609 Round to the nearest whole number 608.6
7. 90 Round to the nearest tens 93.908
8. 901 Round to the nearest whole number 900.993
9. 4.81 Round to the nearest hundredth 4.808
10. 93 Round to the nearest whole number 92.84
11. 510 Round to the nearest ten 509.860
12. 56 Round to the nearest whole number 56.23
13. 66 Round to the nearest whole number 65.9
14. 21.3 Round to the nearest tenth 21.25
15. 268.96 Round to the nearest hundredth 268.960
16. 4.4 Round to the nearest tenth 4.391
17. 9.39 Round to the nearest hundredth 9.388
18. 2 Round to the nearest whole number 2.034
19. 9 Round to the nearest whole number 8.7
20. 10.2 Round to the nearest tenth 10.238

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=56.49

Question 1 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=42.1

Question 2 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=94.9

Question 3 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=9.39

Question 4 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=644.17

Question 5 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=609

Question 6 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=90

Question 7 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=901

Question 8 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=4.81

Question 9 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=93

Question 10 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=510

Question 11 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=56

Question 12 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=66

Question 13 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=21.3

Question 14 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=268.96

Question 15 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=4.4

Question 16 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=9.39

Question 17 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=2

Question 18 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=9

Question 19 (of 20)

 


Rounding Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=10.2

Question 20 (of 20)