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QR Challenge: QR Code Bingo- CML version 1

Created using the ClassTools QR Treasure Hunt Generator

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. 1) Mrs. Bryan has 2 pennies, 2 nickels and 3 dimes. Mrs. Burg has twice as many pennies, 5 times as many nickels and 3 times as many dimes as Mrs. Bryan. If Mrs. Burg gives Mrs. Bryan _____cents then they will have the same total of change.51 cents
2. 2) If 2 chickens lay 8 eggs in 3 days, how many eggs can 5 chickens lay in six days?40 eggs
3. 3) George has to solve a subtraction problem. In the first number the letter ‘A’ represents the digit in the ones place and 7 is the digit in the ten place. The number being used to subtract has a number 2 in the tens place and a letter ‘B’ in the ones place. The difference between the numbers is 48. What is the value of ‘A’ and ‘B’ combined? 14
4. 4) A boy and a girl have the same number of letters in their first names. There are twice as many letters in the boy’s last name as the girl’s last name. The total of letters in their four names is 20. The only 2 possible choices for the number of letters in the girl’s first name are 4 and ___. (Nobody has a 1 letter name)7 letters
5. 5) Krystie is 12 years old. In four years she will be twice as old as Rachel. How old will Rachel be next year?5 years old
6. 6) Sam made a mistake in a math problem. He added 5 instead of multiplying 5. Sam’s answer to the incorrect problem was 13. The correct answer to the original problem is?40
7. 7) Dan has $1.00 which he traded for 2 quarters because 2 is more than 1. He then traded his 2 quarters for 3 dimes, the 3 dimes for 4 nickels and finally, the 4 nickels for 5 pennies. How much money did Dan lose in all his trades?95
8. 8) Sally was in the middle rung of a ladder. She went up 3 rungs, then down 5 rungs, and then up 7 rugs where she rested. Later she climbed up the remaining 7 rungs on the ladder. How many total rungs did the ladder have?25
9. 9) The swimming pool at the “Y” has 5 doors. Three doors are only entrances and one door is only an exit. The other door is both an exit and entrance. In how many different ways can Mr. Hinz enter and leave the pool area?8
10. 10) Tim, a bank clerk, is told to lock the cash vault at 1 P.M. Saturday afternoon. He has to set the timer so the vault can be reopened at 8 A.M. Tuesday morning. How many hours should he set the timer for?67
11. 11) The middle bead in a string of 17 beads was the largest and most expensive. Starting from each end, the end beads were $1 each and each bead is $1 more than the one before, up to the middle. If the string of beads is worth $100, what is the middle bead worth?28
12. 12) Two friends, Fred and Barney, ate at a restaurant together. Fred paid for himself and Barney paid for himself. Fred spent $3 more than Barney. The total bill was $52.24. How much did Fred pay? 27.62
13. 13) Jon is in a twelve story building. Jon is currently on the _____ th floor. If the 12th floor is twice as far as the walk to the 6th floor, what floor is Jon on.8
14. 14) If 3 cats catch 3 rats in 3 minutes, how many cats are needed to catch 60 rats in one hour?3
15. 15) Zoha was born in 1980 and her sister was born in 1987. In what year will Zoha be twice as old as his sister?1994
16. 16) In the number 602, the value of the 6 digit is ___ times the value of the digit 2.300
17. 17) A barrel full of flour weighs 40 pounds. The same barrel full of nails weighs 64 pounds. If the nails weigh 3 times as much as the flour, how much does the empty barrel weigh?28
18. 18) In a ball toss game, Elliot can score either 3 or 7 points. What is the largest score, under 20, that Elliot can never score?11
19. 19) A!!B!!C means (A+B) / C. For example: 15!!9!!6 = (15+9) / 6 = 4. If J = 12!!6!!2 and K = 15!!6!!3, what is the difference between J and K?2
20. 20) Katie is 5 years older than Lenny. Lenny is 2 years younger than Maria. Maria is twice as old as Norman. If Norman is 10 years old, how old is Katie?23
21. 21) In Montgomery Elementary’s Science Club, every member is taking either a science course, a math course, or both courses. If 35 members are taking math while 28 are taking science, and 6 are taking both courses, how many total members are in the club?57
22. 22) Find a number that is twice as far from 40 as it is from 73.62
23. 23) Find the number that completes this equation: 16 + (3 x ?) / 2 = 288
24. 24) Five pounds of apples cost $2.90. There are 4 apples to a pound. How much would 2 dozen apples cost?3.48

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=1)_Mrs._Bryan_has_2_pennies,_2_nickels_and_3_dimes._Mrs._Burg_has_twice_as_many_pennies,_5_times_as_many_nickels_and_3_times_as_many_dimes_as_Mrs._Bryan._If_Mrs._Burg_gives_Mrs._Bryan______cents_then_they_will_have_the_same_total_of_change.

Question 1 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=2)_If_2_chickens_lay_8_eggs_in_3_days,_how_many_eggs_can_5_chickens_lay_in_six_days?

Question 2 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=3)_George_has_to_solve_a_subtraction_problem._In_the_first_number_the_letter_‘A’_represents_the_digit_in_the_ones_place_and_7_is_the_digit_in_the_ten_place._The_number_being_used_to_subtract_has_a_number_2_in_the_tens_place_and_a_letter_‘B’_in_the_ones_place._The_difference_between_the_numbers_is_48._What_is_the_value_of_‘A’_and_‘B’_combined?

Question 3 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=4)_A_boy_and_a_girl_have_the_same_number_of_letters_in_their_first_names._There_are_twice_as_many_letters_in_the_boy’s_last_name_as_the_girl’s_last_name._The_total_of_letters_in_their_four_names_is_20._The_only_2_possible_choices_for_the_number_of_letters_in_the_girl’s_first_name_are_4_and____._(Nobody_has_a_1_letter_name)

Question 4 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=5)_Krystie_is_12_years_old._In_four_years_she_will_be_twice_as_old_as_Rachel._How_old_will_Rachel_be_next_year?

Question 5 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=6)_Sam_made_a_mistake_in_a_math_problem._He_added_5_instead_of_multiplying_5._Sam’s_answer_to_the_incorrect_problem_was_13._The_correct_answer_to_the_original_problem_is?

Question 6 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=7)_Dan_has_$1.00_which_he_traded_for_2_quarters_because_2_is_more_than_1._He_then_traded_his_2_quarters_for_3_dimes,_the_3_dimes_for_4_nickels_and_finally,_the_4_nickels_for_5_pennies._How_much_money_did_Dan_lose_in_all_his_trades?

Question 7 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=8)_Sally_was_in_the_middle_rung_of_a_ladder._She_went_up_3_rungs,_then_down_5_rungs,_and_then_up_7_rugs_where_she_rested._Later_she_climbed_up_the_remaining_7_rungs_on_the_ladder._How_many_total_rungs_did_the_ladder_have?

Question 8 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=9)_The_swimming_pool_at_the_“Y”_has_5_doors._Three_doors_are_only_entrances_and_one_door_is_only_an_exit.__The_other_door_is_both_an_exit_and_entrance._In_how_many_different_ways_can_Mr._Hinz_enter_and_leave_the_pool_area?

Question 9 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=10)_Tim,_a_bank_clerk,_is_told_to_lock_the_cash_vault_at_1_P.M._Saturday_afternoon.__He_has_to_set_the_timer_so_the_vault_can_be_reopened_at_8_A.M._Tuesday_morning._How_many_hours_should_he_set_the_timer_for?

Question 10 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=11)_The_middle_bead_in_a_string_of_17_beads_was_the_largest_and_most_expensive._Starting_from_each_end,_the_end_beads_were_$1_each_and_each_bead_is_$1_more_than_the_one_before,_up_to_the_middle._If_the_string_of_beads_is_worth_$100,_what_is_the_middle_bead_worth?

Question 11 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=12)_Two_friends,_Fred_and_Barney,_ate_at_a_restaurant_together._Fred_paid_for_himself_and_Barney_paid_for_himself._Fred_spent_$3_more_than_Barney._The_total_bill_was_$52.24._How_much_did_Fred_pay?

Question 12 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=13)_Jon_is_in_a_twelve_story_building._Jon_is_currently_on_the_______th_floor.___If_the_12th_floor_is_twice_as_far_as_the_walk_to_the_6th_floor,_what_floor_is_Jon_on.

Question 13 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=14)_If_3_cats_catch_3_rats_in_3_minutes,_how_many_cats_are_needed_to_catch_60_rats_in_one_hour?

Question 14 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=15)_Zoha_was_born_in_1980_and_her_sister_was_born_in_1987._In_what_year_will_Zoha_be_twice_as_old_as_his_sister?

Question 15 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=16)_In_the_number_602,_the_value_of_the_6_digit_is_____times_the_value_of_the_digit_2.

Question 16 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=17)_A_barrel_full_of_flour_weighs_40_pounds._The_same_barrel_full_of_nails_weighs_64_pounds._If_the_nails_weigh_3_times_as_much_as_the_flour,_how_much_does_the_empty_barrel_weigh?

Question 17 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=18)_In_a_ball_toss_game,_Elliot_can_score_either_3_or_7_points._What_is_the_largest_score,_under_20,_that_Elliot_can_never_score?

Question 18 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=19)_A!!B!!C_means_(A+B)_/_C._For_example:_15!!9!!6_=_(15+9)_/_6_=_4._If_J_=_12!!6!!2_and_K_=_15!!6!!3,_what_is_the_difference_between_J_and_K?

Question 19 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=20)_Katie_is_5_years_older_than_Lenny._Lenny_is_2_years_younger_than_Maria._Maria_is_twice_as_old_as_Norman._If_Norman_is_10_years_old,_how_old_is_Katie?

Question 20 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=21)_In_Montgomery_Elementary’s_Science_Club,_every_member_is_taking_either_a_science_course,_a_math_course,_or_both_courses._If_35_members_are_taking_math_while_28_are_taking_science,_and_6_are_taking_both_courses,_how_many_total_members_are_in_the_club?

Question 21 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=22)_Find_a_number_that_is_twice_as_far_from_40_as_it_is_from_73.

Question 22 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=23)_Find_the_number_that_completes_this_equation:_16_+_(3_x_?)_/_2_=_28

Question 23 (of 24)

 



QR Code Bingo- CML version 1: QR Challenge

https://www.classtools.net/QR/decode.php?text=24)_Five_pounds_of_apples_cost_$2.90._There_are_4_apples_to_a_pound._How_much_would_2_dozen_apples_cost?

Question 24 (of 24)