Puff

Description
Puff is an adventure game with math elements for children released on the BBC Micro.
Puff the dragon has been hiding in a pagoda for many years. It has been very hot, and Puff has not been able to find his favorite food for a long time. The player must explore to find the dragon's favorite food, locate Puff, and save him.
All commands are via VERB NOUN entry. The player can gather items to solve simple puzzles, and can collect inventory items. The player must solve math problems to progress in their adventure.