Without a calculator, work out the cheapest route from Los Angeles to Las Vegas:
You can move from square to square horizontally or vertically (but not diagonally). Each time you enter a square you have to pay the amount shown.
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There are 10 different five step routes from Los Angeles to Las Vegas.
Los Angeles - 7 - 6 - 1 - 7 - Las Vegas [Total = 21]
Los Angeles - 7 - 6 - 3 - 7 - Las Vegas [Total = 23]
Los Angeles - 7 - 6 - 3 - 4 - Las Vegas [Total = 20]
Los Angeles - 7 - 9 - 3 - 7 - Las Vegas [Total = 26]
Los Angeles - 7 - 9 - 3 - 4 - Las Vegas [Total = 23]
Los Angeles - 7 - 9 - 5 - 4 - Las Vegas [Total = 25]
Los Angeles - 6 - 9 - 3 - 7 - Las Vegas [Total = 25]
Los Angeles - 6 - 9 - 3 - 4 - Las Vegas [Total = 22]
Los Angeles - 6 - 9 - 5 - 4 - Las Vegas [Total = 24]
Los Angeles - 6 - 8 - 5 - 4 - Las Vegas [Total = 23]
So the cheapest route costs 20 (dollars). Here is a way of getting that total:
You can view another version of this starter generated from random numbers. Puzzle 1 is the easiest, puzzle 5 is very difficult.
Alternatively you can change the size of the grid to make the problem more complex:
Number of rows: Number of columns:
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 Calculator
There 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 high-resolution 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 high-performance processor and twice the memory of previous models ensuring speedy operation and superior computational power.more...
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