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QR Challenge: 3C Subtractionger Hunt

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. 65-23
2. 187-64
3. 453-221
4. 674-352
5. 162-39
6. 374-127
7. 445-162
8. 927-444
9. 827-449
10. 754-269
11. 903-728
12. Kalise's apple orchard grew 452 apples in the past two months. 122 of those apples were grown this month. How many apples were grown last month?
13. Crawf's coffee shop sold 766 cups of coffee on Monday and Tuesday combined. 239 of the cups were sold on Tuesday. How many cups did the shop sell on Monday alone?
14. Donald needs his farm to grow 927 watermelons this year. So far it has grown 263 watermelons. How many more does Donald need to grow?
15. In the past two months Roldy has spent 423 hours practising his awesome dance moves. This month he spent 246 hours practising, so how long did he practise for last month?
16. Lilliana-man had 873 superhero costumes, but unfortunately she lost 645 of them fighting bad guys and saving the world from evil villians. How many superhero costumes does Lilliana man have left?

 


3C Subtractionger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=65-23

Question 1 (of 16)

 


3C Subtractionger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=187-64

Question 2 (of 16)

 


3C Subtractionger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=453-221

Question 3 (of 16)

 


3C Subtractionger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=674-352

Question 4 (of 16)

 


3C Subtractionger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=162-39

Question 5 (of 16)

 


3C Subtractionger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=374-127

Question 6 (of 16)

 


3C Subtractionger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=445-162

Question 7 (of 16)

 


3C Subtractionger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=927-444

Question 8 (of 16)

 


3C Subtractionger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=827-449

Question 9 (of 16)

 


3C Subtractionger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=754-269

Question 10 (of 16)

 


3C Subtractionger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=903-728

Question 11 (of 16)

 


3C Subtractionger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Kalise's_apple_orchard_grew_452_apples_in_the_past_two_months._122_of_those_apples_were_grown_this_month._How_many_apples_were_grown_last_month?

Question 12 (of 16)

 


3C Subtractionger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Crawf's_coffee_shop_sold_766_cups_of_coffee_on_Monday_and_Tuesday_combined._239_of_the_cups_were_sold_on_Tuesday._How_many_cups_did_the_shop_sell_on_Monday_alone?

Question 13 (of 16)

 


3C Subtractionger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Donald_needs_his_farm_to_grow_927_watermelons_this_year._So_far_it_has_grown_263_watermelons._How_many_more_does_Donald_need_to_grow?

Question 14 (of 16)

 


3C Subtractionger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=In_the_past_two_months_Roldy_has_spent_423_hours_practising_his_awesome_dance_moves._This_month_he_spent_246_hours_practising,_so_how_long_did_he_practise_for_last_month?

Question 15 (of 16)

 


3C Subtractionger Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Lilliana-man_had_873_superhero_costumes,_but_unfortunately_she_lost_645_of_them_fighting_bad_guys_and_saving_the_world_from_evil_villians._How_many_superhero_costumes_does_Lilliana_man_have_left?

Question 16 (of 16)