The Moscow Mathematical Papyrus contains 25 problems , but is particularly known for its geometrical problems numbers 10 and 14. The method described in problem 14 is exactly the one used today and entails calculating the volume of a whole pyramid. Therefore, even if no mathematical problem involving the volume of a whole pyramid has survived, it is clear the ancient Egyptians knew how to calculate it. Problem 14 states that a pyramid has been truncated in such a way that the top area is a square of length 2, the bottom a square of length 4 and the height 6. Use this Demonstration to explore the volume of a square pyramidal frustum expressed in hieratic numerals as the ancient Egyptians would have done.