
A Google user
It can be fun, but the random ads ruin it. You only need to solve simple mathematical equation ( just + - × or ÷, definitely no √ π or %), and you can increase the difficulty, if you prefer (89 × 23) instead of (3 × 1). You can challenge yourself to finish as many equations as you can, in limited time, or something similar, and then the random ads pop-up and ruin your concentration. I actually don't mind those ads, but only if I choose when to see them. As such, I'll get the XP, and bye-bye.
2 people found this review helpful