Just what I was looking for!

I own a MacBook Pro and I am taking accounting and economics this semester. I was getting a little frustrated with all the calculations I needed to do on my computer when I needed to add I had to hit "shift "="" and to multiply "shift "8"". I do a lot of my work in low light due to a 3 month old 10 ft from me, so a solar powered calculator is not an option, and not going to spend big bucks on a battery calculator with backlight if they even make one. I love the calculator on the Mac with the paper tape. This app gives me the ease of typing the numbers and calculations (+,*,/,-) i need, with out spending the money for another calculator.

T.Norm about NumPad., v3.2.1