For all things Maths.
Links to daily maths problems posted online, from a variety of sources.
Have a go at trying to solve, share your solutions and always have fun!
I’m keen to help children/teenagers, from all around the world, develop their love of maths. I’m always on the lookout, for ways to make it fun and help students to work a little differently to normal.
Sources include:
Art of Problem Solving (AoPS) - used for training by the USA Maths Olympiad team
UKMT (UK Maths Trust) - their challenges are used to find students for the future UK Olympiad Team
For those in other countries, please do contact me with other online resources/questions that I can include. email: Lando Education
Alex has 25 discs that are black on one side and white on the other. He arranges them on a 5 x 5 grid so that all the white sides are showing.
A move consists of taking any three consecutive discs in a row or column and flipping them over. You want the discs to make the checkerboard coloring shown below.
From the initial all-white position, what is the smallest number of moves needed to get to the checkerboard position?
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