ما الفرق بين مئة ومائة

There is no difference between مائة and مئة as both are correct. The original pronunciation is مئة, but when written an extra alif is added in the middle to distinguish between مئة, فئة, and منه. This is done for accuracy in writing and to avoid confusion between words when reading. The addition of the alif changes مئة to مائة. This distinction is important to ensure clarity in writing and reading.