【實用遊戲app】Count it up|最夯免費app-gigacircle

A game where you add, subtract, multiply and divide two numbers against the clock!Ad the first numbers and the timer begins! Every time you successfully answer a question you get a little bit more time. The key is to answer the easy questions as fast as possible! Once you do a few addition questions you will move to subtraction and so on. How far can you go? Can you be the best calculator in the universe? Reach the top of the leaderboards and find out!