Six ten total
This challenge combines addition, multiplication, perseverance and even proof.
This challenge combines addition, multiplication, perseverance and even proof.
There are lots of different methods to find out what the shapes are worth - how many can you find?
Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a rhombus.
Can you dissect an equilateral triangle into 6 smaller ones? What number of smaller equilateral triangles is it NOT possible to dissect a larger equilateral triangle into?
How many DIFFERENT quadrilaterals can be made by joining the dots on the 8-point circle?
Nine squares with side lengths 1, 4, 7, 8, 9, 10, 14, 15, and 18 cm can be fitted together to form a rectangle. What are the dimensions of the rectangle?
How many symmetric designs can you make on this grid? Can you find them all?
On a digital clock showing 24 hour time, over a whole day, how many times does a 5 appear? Is it the same number for a 12 hour clock over a whole day?