FXF Studios

FXF Studios published 1 application on Google Play, 31 people rated this app with an average rating of 4.45!

Operation 99 by FXF StudiosOperation 99

Rated 4.45(31) — FXF Studios

Sharpen your mental math skills with Operation 99! Choose an operation - either addition or subtraction - and test your speed on solving each problem. Tap the number tiles to add or subtract their values respectively. You have 10 seconds to solve each...

Free Game