Akhmim Wooden Tablets

The Akhmim wooden tablets, at the Museum of Egyptian Antiquities in Cairo n. 25367 and 25368, generaly dated to the early Egyptian Middle Kingdom.

See:

1. Georges Daressy, "Calculs égyptiens du Moyen Empire", in Recueil de travaux relatifs à la philologie et à l'archéologie égyptiennes et assyriennes XXVIII, 1906, pp. 62–72
2. Hana Vymazalova, "The Wooden Tablets from Cairo: The Use of the Grain Unit HK3T in Ancient Egypt." Archive Orientallai, Charles U., Prague, pp. 27–42, 2002
3. Milo Gardner, "An Ancient Egyptian Problem and its Innovative Arithmetic Solution", Ganita Bharati, 2006, Vol 28, Bulletin of the Indian Society for the History of Mathematics, MD Publications, New Delhi, pp 157–173.
4. idem, Akhmim Wooden Tablet -https://www.academia.edu/24190930/Akhmim_Wooden_Tablet