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:
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