The Task

Our model will convert English math phrases into English number answers:

"two plus three"         → "five"
"seven minus four"       → "three"
"six times eight"        → "forty eight"
"twenty divided by five" → "four"

Notice: both input and output are words, not digits. The model never sees "2 + 3 = 5"—it only sees "two plus three" and learns to predict "five".