Intuitive interface powered by handwriting input and a fun and engaging mini game in addition to a regular math trainer mode make our app stand out from the crowd of generic math learning apps.With Second grade Math - Subtraction you can practice and improve the following math skills:- Subtraction facts - numbers up to 20- Subtract a one-digit number from a two-digit number- Subtract two two-digit numbers- Subtract multiples of 10- Subtract multiples of 100- Subtract multiples of 10 or 100- Subtract three-digit numbers- Balance subtraction equations