## Sort the Street

Sort the houses in my street into different groups. Can you do it in any other ways?...

Sort the houses in my street into different groups. Can you do it in any other ways?...

This video of Charlie and Liz solving a 6 by 6 mathdoku may give you ideas for strategies to try....

How many moves does it take to swap over some red and blue frogs? Do you have a method?...

Can you find a reliable strategy for choosing coordinates that will locate the treasure in the minimum number of guesses?...

Can you use the clues to complete these 6 by 6 Mathematical Sudokus?...

Can you use the clues to complete these 5 by 5 Mathematical Sudokus?...

Can you use the clues to complete these 4 by 4 Mathematical Sudokus?...

Can you use the clues to complete these 3 by 3 Mathematical Sudokus?...

Three semi-circles have a common diameter, each touches the other two and two lie inside the biggest one. What is the radius of the circle that touches all three semi-circles?...

In how many different ways can you break up a stick of seven interlocking cubes? Now try with a stick of eight cubes and a stick of six cubes. What do you notice?...