Challenging Timestable is an easy and fun game of mastering your timestable. It's incredibly simple but insanely addictive.

SIMPLE and ADDICTIVE gameplay!
• Rule is so simple. Just answer the timestable questions as fast as you can.
• Once you start, you can't hardly put it down.

GREAT SOCIAL gameplay!
• Global/Country/Daily/Local high scores is supported.
• Compete with your facebook friends.

If you like Challenging Timestable, try 1to50 also. It's extremely addictive and challenging.