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QR Challenge: 2 step word problems

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. One day Keith skipped 145 rocks over the river. The next day he skipped 165 rocks. The third day he skipped 155 rocks. How many rocks did he skip altogether?465
2. Miss Halle's tap class has 156 students. Miss Knight's tap class has 98. How many more students does Miss Halle have in her tap class?58
3. 389 people went to the zoo on Friday. 592 people went to the zoo on Saturday. 238 people went to the zoo on Sunday. How many people went to the zoo in all?1219
4. There are 189 animals at the Cleveland zoo. There are 158 animals at the Akron zoo. There are 129 animals at the Cincinnati zoo. How many animals are there in all?476
5. Ella has 199 marbles. Kim has 137 marbles. Maria has 231 marbles. How many marbles are there in total?567
6. The mail carrier delivered 430 letters last month. This month he delivered less letters than last month. He delivered 850 letters in both months in all. How many letters did he deliver this month?420
7. A store sells raisins in packages of 130, 165, and 170. Rosa wants to buy 300 raisins. Which two packages will she buy?130, 170
8. Alex's ant farm has 120 ants. He buys another ant farm. She now has 300 ants. How many ants are in the second ant farm?180
9. One pet store has 289 angel fish and 429 clown fish. Gigi came in and bought 187 fish. How many fish are left in the fish store?531
10. Kara counted 185 flowers on her walk. Her dad counted 139 flowers. They took 85 home. How many are left outside?239
11. Nathan collected 2749 pine cones. Liz took 1322 pine cones from Nathan. How many pine cones does Nathan have left?1427
12. 344 people are at a game. 198 people leave at half time. How many people are still at the game?146

 


2 step word problems : QR Challenge

https://www.classtools.net/QR/decode.php?text=One-day-Keith-skipped-145-rocks-over-the-river.-The-next-day-he-skipped-165-rocks.-The-third-day-he-skipped-155-rocks.-How-many-rocks-did-he-skip-altogether?

Question 1 (of 12)

 


2 step word problems : QR Challenge

https://www.classtools.net/QR/decode.php?text=Miss-Halle's-tap-class-has-156-students.-Miss-Knight's-tap-class-has-98.-How-many-more-students-does-Miss-Halle-have-in-her-tap-class?

Question 2 (of 12)

 


2 step word problems : QR Challenge

https://www.classtools.net/QR/decode.php?text=389-people-went-to-the-zoo-on-Friday.-592-people-went-to-the-zoo-on-Saturday.-238-people-went-to-the-zoo-on-Sunday.-How-many-people-went-to-the-zoo-in-all?

Question 3 (of 12)

 


2 step word problems : QR Challenge

https://www.classtools.net/QR/decode.php?text=There-are-189-animals-at-the-Cleveland-zoo.-There-are-158-animals-at-the-Akron-zoo.-There-are-129-animals-at-the-Cincinnati-zoo.-How-many-animals-are-there-in-all?

Question 4 (of 12)

 


2 step word problems : QR Challenge

https://www.classtools.net/QR/decode.php?text=Ella-has-199-marbles.-Kim-has-137-marbles.-Maria-has-231-marbles.-How-many-marbles-are-there-in-total?

Question 5 (of 12)

 


2 step word problems : QR Challenge

https://www.classtools.net/QR/decode.php?text=The-mail-carrier-delivered-430-letters-last-month.-This-month-he-delivered-less-letters-than-last-month.-He-delivered-850-letters-in-both-months-in-all.-How-many-letters-did-he-deliver-this-month?

Question 6 (of 12)

 


2 step word problems : QR Challenge

https://www.classtools.net/QR/decode.php?text=A-store-sells-raisins-in-packages-of-130,-165,-and-170.-Rosa-wants-to-buy-300-raisins.-Which-two-packages-will-she-buy?

Question 7 (of 12)

 


2 step word problems : QR Challenge

https://www.classtools.net/QR/decode.php?text=Alex's-ant-farm-has-120-ants.-He-buys-another-ant-farm.-She-now-has-300-ants.-How-many-ants-are-in-the-second-ant-farm?

Question 8 (of 12)

 


2 step word problems : QR Challenge

https://www.classtools.net/QR/decode.php?text=One-pet-store-has-289-angel-fish-and-429-clown-fish.-Gigi-came-in-and-bought-187-fish.-How-many-fish-are-left-in-the-fish-store?

Question 9 (of 12)

 


2 step word problems : QR Challenge

https://www.classtools.net/QR/decode.php?text=Kara-counted-185-flowers-on-her-walk.-Her-dad-counted-139-flowers.-They-took-85-home.-How-many-are-left-outside?

Question 10 (of 12)

 


2 step word problems : QR Challenge

https://www.classtools.net/QR/decode.php?text=Nathan-collected-2749-pine-cones.-Liz--took-1322-pine-cones-from-Nathan.-How-many-pine-cones-does-Nathan-have-left?

Question 11 (of 12)

 


2 step word problems : QR Challenge

https://www.classtools.net/QR/decode.php?text=344-people-are-at-a-game.-198-people-leave-at-half-time.-How-many-people-are-still-at-the-game?

Question 12 (of 12)