Doodle Numbers Quiz App for iOS
'An addictive number matching game that will keep you and your family entertained for hours.
Designed for both children and adults, this game improves your math skills by asking you to solve series of simple and fun pattern-matching puzzles. Instead of matching colored balls and funny shapes, you're matching numbers using basic math. Finish the game, and you'll feel like a rocket scientist!'
This is a free app