The main economic activity of the Egyptians was agriculture. The Egyptians cultivated wheat, barley, flax, cotton, vegetables, fruits and papyrus, a plant with which they made a good quality paper.
They didn't just work with agriculture, they also with the raising of oxen, goats, sheep, ducks and also with the mining of gold, precious stones, which was used to facilitate foreign trade.
They produced weapons, boats, ceramics, bricks, glass, copper, bronze, etc. All of this was done in the craft industry they built.
The Egyptians didn't know about money, so they bought and sold through exchanges. This activity reached its apogee in the New Kingdom, when commercial contacts with the island of Crete, Palestine, Phoenicia and Syria intensified.