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QR Challenge: PERCENTAGE PROBLEMS MIXED

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. There are 200 spectators at the rounders tournament. 30% are children. How many children are there?60
2. There are 73 Skittles in a bag. 40% are red. How many Skittles are red?29
3. Raj collected 56 stickers for his sticker book.He gives 50% of them to his sister.How many does he give to his sister?28
4. 20% of flowers in a garden are in fact weeds. There are 70 ‘flowers’.How many weeds are there?14
5. If an average banana weighs 120g, and a super-size banana is 10% heavier. How much does a super-size banana weigh in grams?132g
6. Old Joe is 100 years old. If his older brother is 5% older than Joe, how old is his older brother?105
7. Henry earns £500 per week. If he keeps being late for work and gets a 25% pay cut – what is his new salary each week?£375
8. Danni is 1 metre 80cm tall. If her brother is 50% of her height – how tall is Danni’s brother? 90cm
9. A bus ticket into town costs £1.20 for an adult and 80p for a child. If the prices are raised by 7% how much will it cost for one adult and one child to go to town on the bus??£1.28
10. Footballs cost £4 each. If you buy 10 or more footballs you get a 5% reduction in the price. How much money will it cost then to buy 20 footballs?£76

 


PERCENTAGE PROBLEMS MIXED: QR Challenge

https://www.classtools.net/QR/decode.php?text=There_are_200_spectators_at_the_rounders_tournament._30%_are_children._How_many_children_are_there?

Question 1 (of 10)

 


PERCENTAGE PROBLEMS MIXED: QR Challenge

https://www.classtools.net/QR/decode.php?text=There_are_73_Skittles_in_a_bag._40%_are_red._How_many_Skittles_are_red?

Question 2 (of 10)

 


PERCENTAGE PROBLEMS MIXED: QR Challenge

https://www.classtools.net/QR/decode.php?text=Raj_collected_56_stickers_for_his_sticker_book.He_gives_50%_of_them_to_his_sister.How_many_does_he_give_to_his_sister?

Question 3 (of 10)

 


PERCENTAGE PROBLEMS MIXED: QR Challenge

https://www.classtools.net/QR/decode.php?text=20%_of_flowers_in_a_garden_are_in_fact_weeds._There_are_70_‘flowers’.How_many_weeds_are_there?

Question 4 (of 10)

 


PERCENTAGE PROBLEMS MIXED: QR Challenge

https://www.classtools.net/QR/decode.php?text=If_an_average_banana_weighs_120g,_and_a_super-size_banana_is_10%_heavier._How_much_does_a_super-size_banana_weigh_in_grams?

Question 5 (of 10)

 


PERCENTAGE PROBLEMS MIXED: QR Challenge

https://www.classtools.net/QR/decode.php?text=Old_Joe_is_100_years_old._If_his_older_brother_is_5%_older_than_Joe,_how_old_is_his_older_brother?

Question 6 (of 10)

 


PERCENTAGE PROBLEMS MIXED: QR Challenge

https://www.classtools.net/QR/decode.php?text=Henry_earns_£500_per_week._If_he_keeps_being_late_for_work_and_gets_a_25%_pay_cut_–_what_is_his_new_salary_each_week?

Question 7 (of 10)

 


PERCENTAGE PROBLEMS MIXED: QR Challenge

https://www.classtools.net/QR/decode.php?text=Danni_is_1_metre_80cm_tall._If_her_brother_is_50%_of_her_height_–_how_tall_is_Danni’s_brother?

Question 8 (of 10)

 


PERCENTAGE PROBLEMS MIXED: QR Challenge

https://www.classtools.net/QR/decode.php?text=A_bus_ticket_into_town_costs_£1.20_for_an_adult_and_80p_for_a_child._If_the_prices_are_raised_by_7%_how_much_will_it_cost_for_one_adult_and_one_child_to_go_to_town_on_the_bus??

Question 9 (of 10)

 


PERCENTAGE PROBLEMS MIXED: QR Challenge

https://www.classtools.net/QR/decode.php?text=Footballs_cost_£4_each._If_you_buy_10_or_more_footballs_you_get_a_5%_reduction_in_the_price._How_much_money_will_it_cost_then_to_buy_20_footballs?

Question 10 (of 10)