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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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.
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Teacher, do your students have access to computers such as tablets, iPads or Laptops? This page was really designed for projection on a whiteboard but if you really want the students to have access to it here is a concise URL for a version of this page without the comments:
However it would be better to assign one of the student interactive activities below.
Here is the URL which will take them to a related student activity.