Daily UI - Calculator

Hello Dribbble! My Daily UI Day 4 - Calculator design.
I added a feature on my calculator design which shows the previous three results on the top and users can click the history icon to check more past results. The idea is from my own experience. Whenever I calculate multiple numbers and have to compare or add multiple answers, I always forget the number if I don't write it down or take a note of it. Therefore, I came out with this idea if I can add previous calculated results on the top, maybe it will be helpful for some people.
Thanks for checking out my work and feel free to leave any comments!