Detailed Case Study Search the Archive Feedback

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.

4. Cut them out and place them around your class / school.

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!

4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.

## Question | ## Answer |

1. The product of 8.21 and 6 is ____. | 49.26 |

2. 34 hundredths x 8 = _____ | 2.72 |

3. 6 x 0.71 = ____ | 4.26 |

4. 0.9 x 12 = _____ | 10.8 |

5. What is the closest estimate for the product of 7.29 and 3? | 21 |

6. Joe bought 3 storybooks. Each book costs $4.65. How much did he pay altogether? | $13.95 |

7. 56.08 x 9 = _____ | 504.72 |

8. 0.08 x 2 = ____ | 0.16 |

9. The value of 6.03 x 4 is _____. | 24.12 |

10. Mary went to the store. She bought 3 shirts that cost $7.94 each. She also bought 2 pants that cost $9.94 each. How much did she pay altogether for the clothes? If she gave the cashier $50, how much change did she receive? | $43.72;$6.28 |

11. A rectangular room measures 34.6 yd by 9 yd. If the cost of carpet is $8 a square yard, how much would it cost to carpet the room? | $2491.20 |

12. At the store, Sam bought 2 bags of peanuts for $2.56 each and 4 Milky Way bars for $.98 each. How much did Sam spend at the store? | $9.04 |

13. The closest estimate of 14.87 and 6 is _____. | 60 |

14. 34.75 x 3 = _____ | 104.25 |

15. 0.08 x 11 = _____ | 0.88 |

16. 0.7 x 11 = _____ | 7.7 |

17. 10 x 0.05= ____ | 0.5 |

18. At practice, Kim ran 2.3 km. If Janice ran 7 times farther than Kim, how far did Janice run at practice? | 16.1 km |

19. 8.91 x 7 = ____ | 62.37 |

20. Solve. (1.2 + 4.5) x 9 = _____ | 51.3 |

21. Solve. 8 x 2.3 + 10.6 = _____ | 29 |

22. 8 ones and 9 hundredths - 54 hundredths = _____ | 7.55 |

23. 7 tenths 5 ones 3 hundredths + 8 ones 2 hundredths =_____ | 13.75 |

24. Adam saved $0.85 each day for 6 days. If he gave his sister $1.25, how much money did he have left? | $3.85 |

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