Percentages – Mixed – Calculator – Messenger! In this competitive activity, one student at a time acts as a messenger for their team of 2 or more students. Without running (!), they relay information about questions (posted around the room) to their teammates who then answer them. Students need to record the question letter and the answer so they can mark their work using the answer slide at the end of the activity. With the points system, students can attempt appropriate questions. You could choose posters/questions to include and delete others. (Clear plastic wallets around your classroom make it quick and easy to display posters.)

Printing To print handouts from slides - Select the slide from the left. Then click: File > Print > ‘Print Current Slide’ To print multiple slides - Click on a section title to highlight all those slides, or press ‘Ctrl’ at the same time as selecting slides to highlight more than one. Then click: File > Print > ‘Print Selection’

Messenger! Title Slide

10 In teams pick a messenger! It’s their job to collect questions for the rest of the team to answer. You can change who is the messenger but only one person is allowed to stand up at once and they can’t carry a pen or paper to the question! Each question is worth a different number of points! Record the question letter and your answer on a single piece of paper. After marking, the team that scores the most points wins! Question A 10 Optional rules slide to show the class.

2 2 Question B Question A In a maths test, Annie scored 66 out of 150. What is this as a percentage? In a geography test, Jim scored 78 out of 120. What is this as a percentage?

2 2 Question D Question C In a science test, Jim scored 54 out of 80. What is this as a percentage? In a geography test, Jim scored 27 out of 120. What is this as a percentage?

3 3 Question F Question E In her music test Joanne scored 61 out of 70. What is this as a percentage? (1 decimal place) In a food technology assessment, Pete scored 67 out of 92. What is this as a percentage? (2 decimal places)

Question G Question H 4 5 Which of these is the largest? Which of these is the smallest? 14% 5 6 1 9 84% 7 60 64% 0.12 7 12 5 24 0.45 19%

5 4 Question J Question I Sam invested £80 for a year. His investment increased by 45% How much did he have at the end of the year? Wendy invested £246 for a year. Her investment increased by 23% How much did she have at the end of the year?

5 4 Question L Question K Zane invested £70 for a year. His investment decreased by 30% How much did he have at the end of the year? Zach invested £350 for a year. Her investment decreased by 17% How much did she have at the end of the year?

7 6 Question N Question M Julie was paid £225 for her first week of work. She was paid £267 for her second week of work. What percentage increase is this? (2 decimal places) May was paid £340 for her first week of work. She was paid £408 for her second week of work. What percentage increase is this?

7 6 Question P Question O Billy was paid £186 for his first week of work. He was paid £143 for his second week of work. What percentage decrease is this? (2 decimal places) Mike was paid £240 for his first week of work. He was paid £168 for his second week of work. What percentage decrease is this?

9 8 Question R Question Q Lucy invested £400 for two years. His investment increased by 15% each year. How much did she have at the end of the two years? Kelly invested £345 for two years. Her investment increased by 7% each year. How much did she have at the end of the two years?

10 9 Question T Question S George invested £450 for two years. His investment decreased by 25% each year. How much did he have at the end of the two years? Mary invested £63 for two years. Her investment decreased by 9% each year. How much did she have at the end of the two years?

10 9 Question V Question U In 2018 gold increased in value by 20% to $42 an ounce. How much was it worth before the increase? In 2017 aluminium increased in value by 24% to $44 a kilogram. How much was it worth before the increase?

In 2016 silver decreased in value by Question W Question X 10 11 In 2016 silver decreased in value by 40% to $34 an ounce. How much was it worth before the decrease? In 2018 copper decreased in value by 7% to $56 a kilogram. How much was it worth before the decrease?

13 12 Question Z Question Y Jack bought a house in 2016. He sold it to Anna in 2017 for a 15% profit. Anna sold it for £303,600 and a 20% profit. How much did Jack buy the house for? Mike bought a house in 2016. He sold it to Sophie in 2017 for a 14% loss. Sophie sold it for £245,000 and a 3% profit. How much did Mike buy the house for?

Qu. Answer Points A 44% 2 B 65% C 67.5% D 22.5% E 87.1% 3 F 72.83% G 84% 4 H 1/9 5 I £116 J £302.58 K £49 L £290.50 M 20% 6 Qu. Answer Points N 18.67% 7 O 30% 6 P 23.12% Q £529 8 R £394.99 9 S £253.13 T £52.17 10 U $35 V $35.48 W $56.67 X $60.22 11 Y £220,000 12 Z £276,586.14 13

tom@goteachmaths.co.uk Questions? Comments? Suggestions? …or have you found a mistake!? Any feedback would be appreciated . Please feel free to email: tom@goteachmaths.co.uk