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What is 50% of 2007 plus 2007% of 50?

Does Joseph have too many sheep in his flock...

Weekly Problem 30 - 2013
What is the angle $x$ in the star shape shown?

Arrange any number of counters from these 18 on the grid to make a rectangle. What numbers of counters make rectangles? How many different rectangles can you make with each number of counters?

Can you find a cuboid that has a surface area of exactly 100 square units. Is there more than one? Can you find them all?

The illustration shows the graphs of fifteen functions. Two of them have equations $y=x^2$ and $y=-(x-4)^2$. Find the equations of all the other graphs.

This task offers an opportunity to explore all sorts of number relationships, but particularly multiplication.

If you move the tiles around, can you make squares with different coloured edges?

Each clue in this Sudoku is the product of the two numbers in adjacent cells.

Practise your tables skills and try to beat your previous best score in this interactive game.