This is the best math game for android and it's free. You can do different kinds of math games like addition, subtraction, multiplication, division, fractions, and decimals. It also has different ways to play. 

It’s also great to learn multiplication tables. When you get the right answer, you get points and you can use your points to buy more questions. You can also buy more lives and get more questions and answers. 

You can see your progress in a graph and in your personal record. This game can be educational for kids and kids. It's also great for adults.