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QR Challenge: Fractions of amounts

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. Laura has £100 and gives 1/5 to her brother. How much money does she have left?£80
2. A farmer has 16 pigs. 1/4 of them are poorly. How many pigs are poorly?4
3. What is 2/5 of 75?30
4. I have 30 sweets and eat 1/3 of them. How many sweets have I got left?20
5. What is half of 264?132
6. Halve 162 and then halve the answer. What number are you left with?40.5
7. Grace has 64 cards. She gives her sister 1/4 and gives her brother 3/8. How many does she have left?24
8. Mrs Burns has 35 children in her class. 3/5 of them are girls. How many GIRLS are there in the class?21
9. Mrs Burns has 35 children in her class. 3/5 of them are girls. How many BOYS are there in the class?14
10. What is 7/9 of 153?119
11. Jane watched a film that was 156 minutes long. 5/6 of the way through the doorbell rang. Jane paused the film and answered the door to the postman. How many minutes of the film had she watched before the postman arrived?130
12. A packet of 20 smarties are 1/2 blue, 1/4 yellow and 1/4 red. How many of each smartie colour is there?10blue5yellow5red
13. 1/2 of my secret number is 50. What is my secret number?100
14. The rabbit runs 20km. The tortoise manages only 4/10 of the distance. How many km did the tortoise run?8km
15. What is 6/7 of 161?138
16. Steven has £50. He gives 1/5 to Jane. How much does he have left?£40
17. What is half of £3?£1.50
18. The Jones family need to drive 284 miles. They have driven 3/4 of the distance. How much further do they have to travel?71
19. 1/4 of my secret number is 8. What is my secret number?32
20. A farmer has 30 animals. 1/6 are cows. 1/10 are pigs.How many of his animals are not cows or pigs?22

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=Laura_has_£100_and_gives_1/5_to_her_brother._How_much_money_does_she_have_left?

Question 1 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=A_farmer_has_16_pigs._1/4_of_them_are_poorly._How_many_pigs_are_poorly?

Question 2 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_2/5__of_75?

Question 3 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=I_have_30_sweets_and_eat_1/3_of_them._How_many_sweets_have_I_got_left?

Question 4 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_half_of_264?

Question 5 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=Halve_162_and_then_halve_the_answer._What_number_are_you_left_with?

Question 6 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=Grace_has_64_cards._She_gives_her_sister_1/4_and_gives_her_brother_3/8._How_many_does_she_have_left?

Question 7 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=Mrs_Burns_has_35_children_in_her_class._3/5_of_them_are_girls._How_many_GIRLS_are_there_in_the_class?

Question 8 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=Mrs_Burns_has_35_children_in_her_class._3/5_of_them_are_girls._How_many_BOYS_are_there_in_the_class?

Question 9 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_7/9_of_153?

Question 10 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=Jane_watched_a_film_that_was_156_minutes_long._5/6_of_the_way_through_the_doorbell_rang._Jane_paused_the_film_and_answered_the_door_to_the_postman._How_many_minutes_of_the_film_had_she_watched_before_the_postman_arrived?

Question 11 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=A_packet_of_20_smarties_are_1/2_blue,_1/4_yellow_and_1/4_red._How_many_of_each_smartie_colour_is_there?

Question 12 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=1/2_of_my_secret_number_is_50._What_is_my_secret_number?

Question 13 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=The_rabbit_runs_20km._The_tortoise_manages_only_4/10_of_the_distance._How_many_km_did_the_tortoise_run?

Question 14 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_6/7__of_161?

Question 15 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=Steven_has_£50._He_gives_1/5_to_Jane._How_much_does_he_have_left?

Question 16 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_half_of_£3?

Question 17 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=The_Jones_family_need_to_drive_284_miles._They_have_driven_3/4_of_the_distance._How_much_further_do_they_have_to_travel?

Question 18 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=1/4_of_my_secret_number_is_8._What_is_my_secret_number?

Question 19 (of 20)

 


Fractions of amounts: QR Challenge

https://www.classtools.net/QR/decode.php?text=A_farmer_has_30_animals._1/6_are_cows._1/10_are_pigs.How_many_of_his_animals_are_not_cows_or_pigs?

Question 20 (of 20)