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. There were 2,408 people on board a cruise ship.At the next port, it takes on 557 more passengers, but 379 people get off. How many passengers are on board the ship now? | 2586 |

2. 7.34 + 32.08 + 403.9 = | 443.32 |

3. Mrs Redley spent £23,407 on a new kitchen and then spent £2,073 on her grandchildren’s Christmas presents. She has £19,098 left in her bank account. How much money did she have to begin with? | £44,578 |

4. 8 - 2.34 = | 5.66 |

5. After his birthday, Carter has 5,238 football cards having received 257 cards from his Gran and 93 cards from his brother. How many cards did Carter have before his birthday? | 4888 |

6. 113.26 - 28.5 = | 84.76 |

7. 23,672 more people attended the Star Wars exhibition this year than last year. If 216,479 people went this year, how many people went last year? | 192,807 |

8. A farmer has 42.6kg of animal feed. Each day he uses 5.75kg for his cows; 1,950g for his hens and 2,425g for his sheep. After 2 days, how much feed will he have left? | 22.35kg |

9. Jamie has to drive 327.3 miles to Wales and then a further 186.9 miles to Devon. During his drive, he stops for a 10 minute break after 293.4 miles. How many more miles will he still need to drive to reach Devon? | 220.08 mile |

10. Ella goes on a shopping spree and buys a handbag for £126.58; headphones for £37.25 and a pair of sunglasses. She had £200 to spend and now has the following left in her purse: £10 £5 £2 50p 20p 5p. What did she pay for her sunglasses? | £18.42 |

11. Write this fraction in its simplest form 42/56. | 3/4 |

12. Frankie has 7/8 of a pizza left. Perry eats 5/8 of the pizza. How much pizza has Frankie got now? | 2/8 |

13. 7.63 x 8 = | 61.04 |

14. Find 35% of 780kg | 273kg |

15. There are 31 children in the class. Tia says, “40% of the class are boys.” Is this possible? Why? Why not? | Not possible; you can't have 12.4 boys. |

16. At the sweet factory, 3,600 sweets are made each hour. 5/9 of the sweets are lollipops. 20% of the sweets are gummy bears and the rest is chocolate bars. How many chocolate bars are manufactured each hour? | 880 |

17. During a sale, prices were reduced by 20%. If Jack paid £132 for a new phone, what was the price of the phone before the sale? | £165 |

18. The population of the UK is 65.215 million. The population of USA is 5 times this size. What is the population of the USA? Round your answer to 2 decimal places. | 362.08 |

19. Pippa had some money. She spent 1/3 of it on a new pencil case. She then spent 1/2 of what she had left on a new set of pens. Her pens cost her £18. How much money did Pippa have to start with? | £54 |

20. Write down the value of this Roman numeral: MMCDXV | 2415 |

21. Write the number that is 376,984 less than 8 million | 7,623,016 |

22. The population of a country is 7,350,361. If it increases by 800,000 over the next 5 years, what will be the population in 5 years? | 8,150,361 |

23. Round 5,829,051 to the nearest 10,000 | 5,830,000 |

24. Which number lies exactly halfway between 18.7 and 18.8? | 18.75 |

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