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QR Challenge: Mental Maths

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. Round 345 to the nearest 100300
2. How many numbers in a million?6
3. What 2d shape has 3 sides the same length and equal angles?equilateral triangle
4. 345 times 10?3450
5. Give me 4 square numbers?36 49 64 16
6. 4569 divided by 100?45.69
7. Which angle measures more than 90 degrees?obtuse angle
8. What is the next number in the sequence: 56 64 7280
9. How many degrees does a right angle measure at?90
10. 362 - 102?260
11. 64 divided by 8?8
12. Order these numbers: 6.5 6.54 6 6.896 6.54 6.5 6.89
13. What is the value of 6 in this number: 457.67?tenth
14. In the stationary shop pencils cost 5p each Miss Drake needed 30 pencils for her class, how much money will need?£1.50
15. Mrs Wimpenny had £5.60 left in her purse and needed some sweets for the class, 1 sweet cost 10p, how many could she buy?56
16. 3456 + 2348?5804
17. 3457-1238?2219
18. 32.76 + 58.29?91.05
19. What is an acute angle?Less than 90 degrees
20. what is the value of 7 in this number: 67 345thousand

 


Mental Maths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_345_to_the_nearest_100

Question 1 (of 20)

 


Mental Maths: QR Challenge

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

Question 2 (of 20)

 


Mental Maths: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_2d_shape_has_3_sides_the_same_length_and_equal_angles?

Question 3 (of 20)

 


Mental Maths: QR Challenge

https://www.classtools.net/QR/decode.php?text=345_times_10?

Question 4 (of 20)

 


Mental Maths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Give_me_4_square_numbers?

Question 5 (of 20)

 


Mental Maths: QR Challenge

https://www.classtools.net/QR/decode.php?text=4569_divided_by_100?

Question 6 (of 20)

 


Mental Maths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Which_angle_measures_more_than_90_degrees?

Question 7 (of 20)

 


Mental Maths: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_the_next_number_in_the_sequence:_56_64_72

Question 8 (of 20)

 


Mental Maths: QR Challenge

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

Question 9 (of 20)

 


Mental Maths: QR Challenge

https://www.classtools.net/QR/decode.php?text=362_-_102?

Question 10 (of 20)

 


Mental Maths: QR Challenge

https://www.classtools.net/QR/decode.php?text=64_divided_by_8?

Question 11 (of 20)

 


Mental Maths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Order_these_numbers:_6.5_6.54_6_6.89

Question 12 (of 20)

 


Mental Maths: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_the_value_of_6_in_this_number:_457.67?

Question 13 (of 20)

 


Mental Maths: QR Challenge

https://www.classtools.net/QR/decode.php?text=In_the_stationary_shop_pencils_cost_5p_each_Miss_Drake_needed_30_pencils_for_her_class,_how_much_money_will_need?

Question 14 (of 20)

 


Mental Maths: QR Challenge

https://www.classtools.net/QR/decode.php?text=Mrs_Wimpenny_had_£5.60_left_in_her_purse_and_needed_some_sweets_for_the_class,_1_sweet_cost_10p,_how_many_could_she_buy?

Question 15 (of 20)

 


Mental Maths: QR Challenge

https://www.classtools.net/QR/decode.php?text=3456_+_2348?

Question 16 (of 20)

 


Mental Maths: QR Challenge

https://www.classtools.net/QR/decode.php?text=3457-1238?

Question 17 (of 20)

 


Mental Maths: QR Challenge

https://www.classtools.net/QR/decode.php?text=32.76_+_58.29?

Question 18 (of 20)

 


Mental Maths: QR Challenge

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

Question 19 (of 20)

 


Mental Maths: QR Challenge

https://www.classtools.net/QR/decode.php?text=what_is_the_value_of_7_in_this_number:_67_345

Question 20 (of 20)