Daddy, is 1000 a lot? Is 50 more than 100 or less? If you hear similar questions from your child, then this application is right for you! With it, you can show your baby large quantities with a good example. You can also explain how subtraction and addition work. This application will help your child understand quantity corresponding to a particular number from 1 to 1000. He will understand what plus and minus are, and he will master the initial level of mathematics.