Great start
I love that this has such a wide range of problems and that problems can be both vertical and horizontal. The only additions that I would is a little more detailed report available for my students and also if you could select to mix-up the math focus. Ex. Addition and subtraction or addition, subtraction, and multiplication instead of just one or all. If this is possible I will definitely modify my rating to 5 stars.
Mary T 1965 about
Math Flash Cards !