"simple and easy"
I bought this for my son who was starting secondary school. The display on the calculator allows for more readable sums, fractions for example allow you to actually see one number abover the other one instead of using some weird symbol like the calculators when I was at school. The calculator is very simple to use, as well as the standard numbers and mathematical functions, you have a joypad which enables you to move to different parts of the sum (useful if it is a complex one) and make changes without the need to erase everything back to the point where you need to make a correcton.
Very happy with the purchase