In a pyramid, every brick is worth the sum of both bricks on which it is sitting.
You can also play with the pyramid upside down.
In this case every brick will be the sum of the two bricks it is supporting.

Complete each brick with the appropriate number.

The principle is very simple.
Select a pyramid based on the level of difficulty: easy, intermediary, advanced.
You have to fill in the empty bricks while respecting the rules described above.
This game can also be played as a challenge between different players of for you alone. You can time the duration in order to find the fastest player. You can use it for your kids, to review or refresh their mental calculation skills, but you can also use it for yourself and pick up the challenge of beating your own performance. You can check the result, view the solution if you are stucked, save a play in order to continue solving it later on.

The application is available in French, English, German.

Are you up to the challenge of solving clever puzzles? Come and explore the mysteries of the pyramid, where each level represents a new challenge to solve.

Stack the numbers with skill and ingenuity to climb the rungs of this enigmatic structure. Addition, subtraction, multiplication and division combine to create a whirlwind of exciting mathematical challenges.

Develop your math skills while having fun, and become the master of pyramid calculations.

So, will you dare to take up this unique mathematical challenge?
The pyramid awaits its next number conquerors!