i've made a page where is literally a calculator. there are the buttons of the numbers, a button to delete, the buttons of add, substract, multiply and division and the screen like a simple calculator. How can i make appear the answer in de "screen" of the calculator and make the numbers appear in that screen?, how can i make the syntax like calculator where first is number then sign of operator and then number?, and how can i make the buttons of the basic operations take the numbers from his sides (because it supose to works like calculator) to make the work?
in image is the design of calculator
the objetive of this miniproject is to learn flutterflow