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QR Challenge: Multiply and Dividing Decimal

Created using the ClassTools QR Treasure Hunt Generator

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 x 7 5.6
2. 0.5 x 7 3.5
3. 0.1 x 6 0.6
4. 0.6 x 4 2.4
5. 0.3 x 3 0.9
6. 0.2 x 0.5 0.1
7. 0.4 x 0.7 0.28
8. 0.8 x 0.1 0.08
9. 0.9 x 0.9 0.81
10. 0.6 x 0.1 0.06
11. 1.9 x 0.3 0.57
12. 1.6 x 0.5 0.8
13. 1.7 x 0.2 0.34
14. 1.3 x 0.7 0.91
15. 5.4 x 0.11 0.594
16. 5.2 x 0.97 5.044
17. 8.3 x 0.73 6.059
18. 4.6 x 0.11 0.506
19. 8.2 x 0.75 6.15
20. 3.2 ÷ 4 0.8
21. 4.8 ÷ 8 0.6
22. 7.2 ÷ 9 0.8
23. 2.4 ÷ 6 0.4
24. 1.8 ÷ 3 0.6
25. 5.6 ÷ 0.7 8
26. 6.3 ÷ 0.7 9
27. 2.7 ÷ 0.3 9
28. 4.9 ÷ 0.7 7
29. 2.8 ÷ 0.7 4
30. 1.65 ÷ 0.15 11
31. 27.3 ÷ 1.3 21
32. 0.03 ÷ 0.005 6
33. 0.99 ÷ 0.0009 1100

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=0.8_x_7

Question 1 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=0.5_x_7

Question 2 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=0.1_x_6

Question 3 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=0.6_x_4

Question 4 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=0.3_x_3

Question 5 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=0.2_x_0.5

Question 6 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=0.4_x_0.7

Question 7 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=0.8_x_0.1

Question 8 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=0.9_x_0.9

Question 9 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=0.6_x_0.1

Question 10 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=1.9_x_0.3

Question 11 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=1.6_x_0.5

Question 12 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=1.7_x_0.2

Question 13 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=1.3_x_0.7

Question 14 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=5.4_x_0.11

Question 15 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=5.2_x_0.97

Question 16 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=8.3_x_0.73

Question 17 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=4.6_x_0.11

Question 18 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=8.2_x_0.75

Question 19 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=3.2_÷_4

Question 20 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=4.8_÷_8

Question 21 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=7.2_÷_9

Question 22 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=2.4_÷_6

Question 23 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=1.8_÷_3

Question 24 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=5.6_÷_0.7

Question 25 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=6.3_÷_0.7

Question 26 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=2.7_÷_0.3

Question 27 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=4.9_÷_0.7

Question 28 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=2.8_÷_0.7

Question 29 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=1.65_÷_0.15

Question 30 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=27.3_÷_1.3

Question 31 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=0.03_÷_0.005

Question 32 (of 33)

 



Multiply and Dividing Decimal : QR Challenge

https://www.classtools.net/QR/decode.php?text=0.99_÷_0.0009

Question 33 (of 33)