The ball is next to and inbetween the calculator and the abacus.
The diary is next to and on the immediate right of the abacus.
The three presents on the left cost a total of £19.
The three presents on the right cost a total of £20.
The calculator costs twice as much as the ball.
The abacus costs £3 more than the diary.
Work out the contents and the cost of the Christmas boxes from the given clues
Topics: Starter  Problem Solving  Puzzles  Simultaneous Equations  Xmas
You can find many more ChristMaths activities at:
P7 tackled this @Transum maths 'Christmaths' problem today. We thought it was easier to find the locations of the presents than it was to find out the correct amounts, but we managed! Fab website for problem solving activities. Looking forward to tomorrow's!pic.twitter.com/zmPa9VNqjI
— Miss Wyse (@wyse_miss) December 10, 2018
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This activity is suitable for students of mathematics all around the world. Use the button below to change the currency symbol used to make it more relevant to your students. You may wish to choose an unfamiliar currency to extend your students' experience. 
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Have you read Craig's book yet?Craig Barton must surely be the voice of Mathematics teachers in the UK. His wonderful podcasts interviewing the industry experts have culminated in this wonderful book. As Craig says: "I genuinely believe I have never taught mathematics better, and my students have never learned more. I just wish I had known all of this twelve years ago..." more... "How I wish I'd taught Maths" is an extraordinary and important book. Part guide to research, part memoir, part survival handbook, it’s a wonderfully accessible guide to the latest research on teaching mathematics, presented in a disarmingly honest and readable way. I know of no other book that presents as much usable research evidence on the dos and don’ts of mathematics teaching in such a clear and practical way. No matter how long you have been doing it, if you teach mathematics—from primary school to university—this book is for you." Dylan Wiliam, Emeritus Professor of Educational Assessment, UCL. 
Casio Classwiz CalculatorThere is currently a lot of talk about this new calculator being the best in its price range for use in the Maths classroom. The new ClassWiz features a highresolution display making it easier to view numerical formulas and symbols but it isn't a graphical calculator as such (it has the capacity to draw graphs on your smart phone or tablet, via a scannable QR code and an app). As well as basic spreadsheet mode and an equation solving feature you also get the ability to solve quadratic, cubic or quartic polynomial inequalities and the answer is given just as it should be written down, using the correct inequality symbols! This calculator has a highperformance processor and twice the memory of previous models ensuring speedy operation and superior computational power.more... 
Teacher, do your students have
access to computers? 

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Transum.org/go/?Start=December26
Here is something a little more relaxing for the day after Christmas.