This was a very fun game but I was rather bored at the start. Still good effort!
Pretty good! Bit of a difficulty spike, but I'm a fan.
I love simple ideas like this, and I think the difficulty escalation should have been faster in the beginning (less boring/repetitive) but slower later on (too hard). It did start off a little boring, but it got very exciting when you would be juggling three things at a time and have four factors per number.
So yeah, good job. Simplicity is a plus, don't add powerups or whatever.
It was fun. But i hate school. lol :p
An interesting game, but gets boring quickly.add upgrades, or bonuses that appear from time to time.