Cool game! The concept is unique and I like the small backstory! I think the number generation could use some balancing - Sometimes I spawned with '1' which meant I couldn't progress, and another time I had '12' but 5 numbers between 70 and 90 were spawning which meant I couldn't progress, and ultimately died because a higher number spawned on top of me.
Great job though! This could be a great mobile game, and it has a learning aspect to it which could be great for teaching kids which is a plus!