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QR Challenge: Adding and Subtracting Integers Practice

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. While watching a football game, Lin Chow decided to list yardage gained as positive integers and yardage lost as negative integers. After these plays, Lin recorded 14, –7, and 9. What was the net gain or loss?16
2. A scuba diver swam 96 feet beneath the surface of the lake. He then climbs up 49 feet. What is his depth now?-47
3. Felix reported that the coldest day on record for his town was five times colder than yesterday’s temperature, –4o C. What was the temperature of the coldest day on record in Felix’s town?-20
4. Joe is playing a game with a regular die. If the number that turns up is even, he will gain 5 times the number that comes up. If it is odd, he will lose 10 times the number that comes up. He tosses a 3. Express the results as an integer.-30
5. Josie has $47 left on her checking account. If she writes a check for $55, what will Josie’s balance be?-8
6. An elevator is on the twentieth floor. It goes down 11 floors and then up 5 floors. What floor is the elevator on now?14

 



Adding and Subtracting Integers Practice: QR Challenge

https://www.classtools.net/QR/decode.php?text=While_watching_a_football_game,_Lin_Chow_decided_to_list_yardage_gained_as_positive_integers_and_yardage_lost_as_negative_integers._After_these_plays,_Lin_recorded_14,_–7,_and_9._What_was_the_net_gain_or_loss?

Question 1 (of 6)

 



Adding and Subtracting Integers Practice: QR Challenge

https://www.classtools.net/QR/decode.php?text=A_scuba_diver_swam_96_feet_beneath_the_surface_of_the_lake._He_then_climbs_up_49_feet._What_is_his_depth_now?

Question 2 (of 6)

 



Adding and Subtracting Integers Practice: QR Challenge

https://www.classtools.net/QR/decode.php?text=Felix_reported_that_the_coldest_day_on_record_for_his_town_was_five_times_colder_than_yesterday’s_temperature,_–4o_C._What_was_the_temperature_of_the_coldest_day_on_record_in_Felix’s_town?

Question 3 (of 6)

 



Adding and Subtracting Integers Practice: QR Challenge

https://www.classtools.net/QR/decode.php?text=Joe_is_playing_a_game_with_a_regular_die._If_the_number_that_turns_up_is_even,_he_will_gain_5_times_the_number_that_comes_up._If_it_is_odd,_he_will_lose_10_times_the_number_that_comes_up._He_tosses_a_3._Express_the_results_as_an_integer.

Question 4 (of 6)

 



Adding and Subtracting Integers Practice: QR Challenge

https://www.classtools.net/QR/decode.php?text=Josie_has_$47_left_on_her_checking_account._If_she_writes_a_check_for_$55,_what_will_Josie’s_balance_be?

Question 5 (of 6)

 



Adding and Subtracting Integers Practice: QR Challenge

https://www.classtools.net/QR/decode.php?text=An_elevator_is_on_the_twentieth_floor._It_goes_down_11_floors_and_then_up_5_floors._What_floor_is_the_elevator_on_now?

Question 6 (of 6)