QR Challenge: 3 digit addition 2nd grade
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
- Download a QR reader (e.g. I-Nigma | NeoReader | Kaywa) onto their mobile devices
- Bring these devices into the lesson.
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. 727 + 521 = | 1248
|
2. 495 + 275 = | 770
| 3. 444 + 411 = | 855
| 4. 765 + 710 = | 1475
| 5. 852 + 278 = | 1130
| 6. 298 + 528 = | 826
| 7. 916 + 869 = | 1785
| 8. 873 + 619 = | 1492
| 9. 903 + 722 = | 1625
| 10. 531 + 852 = | 1383
| 11. 892 + 495 = | 1387
| 12. 809 + 107 = | 916
| 13. 276 + 193 = | 469
| 14. 632 + 611 = | 1243
| 15. 133 + 964 = | 1097
| 16. 451 + 160 = | 611
| 17. 462 + 388 = | 850
| 18. 732 + 986 = | 1718
| 19. 866 + 811 = | 1677
| 20. 507 + 220 = | 727 |
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q1/20:
727 + 521 =&choe=UTF-8
Question 1 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q2/20:
495 + 275 =&choe=UTF-8
Question 2 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q3/20:
444 + 411 =&choe=UTF-8
Question 3 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q4/20:
765 + 710 =&choe=UTF-8
Question 4 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q5/20:
852 + 278 =&choe=UTF-8
Question 5 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q6/20:
298 + 528 =&choe=UTF-8
Question 6 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q7/20:
916 + 869 =&choe=UTF-8
Question 7 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q8/20:
873 + 619 =&choe=UTF-8
Question 8 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q9/20:
903 + 722 =&choe=UTF-8
Question 9 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q10/20:
531 + 852 =&choe=UTF-8
Question 10 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q11/20:
892 + 495 =&choe=UTF-8
Question 11 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q12/20:
809 + 107 =&choe=UTF-8
Question 12 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q13/20:
276 + 193 =&choe=UTF-8
Question 13 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q14/20:
632 + 611 =&choe=UTF-8
Question 14 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q15/20:
133 + 964 =&choe=UTF-8
Question 15 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q16/20:
451 + 160 =&choe=UTF-8
Question 16 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q17/20:
462 + 388 =&choe=UTF-8
Question 17 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q18/20:
732 + 986 =&choe=UTF-8
Question 18 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q19/20:
866 + 811 =&choe=UTF-8
Question 19 (of 20)
3 digit addition 2nd grade : QR Challenge
https://www.classtools.net/QR/decode.php?text=3 digit addition 2nd grade
Q20/20:
507 + 220 =&choe=UTF-8
Question 20 (of 20)