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QR Challenge: NUMBER AND ALGEBRA REVISION (BLUE TEAM)

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. Tom and Jerry share sweets in the ratio 2:3, how many do they each get if they share 30 sweets?12 and 18
2. Find all the factors of 56.1,2,4,6,7,8,14,28,56
3. Find 65% of 450292.5
4. Find the Lowest Common Multiple of 4 and 612
5. This length has been rounded to the nearest 10th of a cm, write the upper and lower limits: 21.7cm21.65 and 21.75
6. Decrease the following amounts by 28%: £306220.32
7. Round this number to 3 significant figures: 0.0023070.00231
8. I have £49.5 in my bank account; this is due to me earning 10% interest on what I originally had put in. How much money did I have originally in my bank account?£45
9. Write 0.00456 in standard form4.56x10^(-3)
10. Multiply out these brackets and simplify the result:(x+10)(8x-4)8x^2+76x-40
11. Solve these equations by multiplying out brackets and simplifying:2(2x + 1) + 6(x + 3)= 70X=5
12. Factorise the following completely:15A – 18B – 21AB3(5A-6B-7AB)
13. Simplify fully:3A9 x 2A-36A6
14. Find the nth term of this sequence: 3, 18, 41, 72, 1114n2+3n -4
15. Rearrange this equation to the form ax^2 + bx + c =0, then solve with the quadratic equation:4x + 5x^2 - 10=2X=1.2 and -2
16. Find a and b for this pair of simultaneous equations: 4a + 4b= 36 6a - 2b= 22 a=5 b=4
17. Find the gradient and the y-intercept of this equation: 2x-y=3M=2, c= -3
18. If f(x)= 3x+1 and g(x)=2/x, find gf(x) in its simplest form2/(3x+1)
19. Solve the following equation: (4x+2)/30=(3x-8)/13X=7
20. Solve the inequality:5x-2>2(5x-4)X<6/5

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=Tom_and_Jerry_share_sweets_in_the_ratio_2:3,_how_many_do_they_each_get_if_they_share_30_sweets?

Question 1 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=Find_all_the_factors_of_56.

Question 2 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=Find_65%_of_450

Question 3 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=Find_the_Lowest_Common_Multiple_of_4_and_6

Question 4 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=This_length_has_been_rounded_to_the_nearest_10th_of_a_cm,_write_the_upper_and_lower_limits:_21.7cm

Question 5 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=Decrease_the_following_amounts_by_28%:_£306

Question 6 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=Round_this_number_to_3_significant_figures:_0.002307

Question 7 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=I_have_£49.5_in_my_bank_account;_this_is_due_to_me_earning_10%_interest_on_what_I_originally_had_put_in._How_much_money_did_I_have_originally_in_my_bank_account?

Question 8 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=Write_0.00456_in_standard_form

Question 9 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=Multiply_out_these_brackets_and_simplify_the_result:(x+10)(8x-4)

Question 10 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=Solve_these_equations_by_multiplying_out_brackets_and_simplifying:2(2x_+_1)_+_6(x_+_3)=_70

Question 11 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=Factorise_the_following_completely:15A_–_18B_–_21AB

Question 12 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=Simplify_fully:3A9_x_2A-3

Question 13 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=Find_the_nth_term_of_this_sequence:_3,_18,_41,_72,_111

Question 14 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=Rearrange_this_equation_to_the_form_ax^2_+_bx_+_c_=0,_then_solve_with_the_quadratic_equation:4x_+_5x^2_-_10=2

Question 15 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=Find_a_and_b_for_this_pair_of_simultaneous_equations:_4a_+_4b=_36_ 6a_-_2b=_22

Question 16 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=Find_the_gradient_and_the_y-intercept_of_this_equation:_2x-y=3

Question 17 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=If_f(x)=_3x+1_and_g(x)=2/x,_find_gf(x)_in_its_simplest_form

Question 18 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=Solve_the_following_equation:_(4x+2)/30=(3x-8)/13

Question 19 (of 20)

 


NUMBER AND ALGEBRA REVISION (BLUE TEAM): QR Challenge

https://www.classtools.net/QR/decode.php?text=Solve_the_inequality:5x-2>2(5x-4)

Question 20 (of 20)