This is a game for two players. Let's call them A and B.
A begins by typing any number into a calculator.
B then multiplies this number by another number, trying to get the answer as close as possible to 100.
A then multiplies this number by another number, trying to get even closer to 100.
The winner is the first player to make the total equal a hundred point something.
Play the game many times. Can you find a good strategy for winning?
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Topics: Starter  Arithmetic  Calculator  Decimals  Estimating  Games
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Previous Day  This starter is for 5 October  Next Day
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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