Use the digits ...
2 7 3 7 9
... to make 2535
You have five minutes to get as close to 2535 as possible using any mathematical operations you know but each digit only once.
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Topics: Starter  Arithmetic
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What strategies did you use?
Did you use your head, paper or a calculator?
Or did you use all three?
Could a computer help solve this problem?
Would you improve if you practised solving problems like this?
How could a group of students efficiently work together on a problem like his?
Note to teacher: Doing this activity once with a class helps students develop strategies. It is only when they do this activity a second time that they will have the opportunity to practise those strategies. That is when the learning is consolidated. Click the button above to regenerate another version of this starter from random numbers.
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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