# Fisile decomposition from one field resulting from the withdrawal to another Tkinter

• Help me get this straight. As a Tkinter programme, remove a window where a call for a number will be made and the number will be added to the previously introduced number after a call to add up. The volume in one field needs to be inserted by number (infinite number of times) and in another the amount will be removed. I don't know how to get the money out.

``````from tkinter import *
from tkinter import messagebox
import math
def calculation():
num = int(a.get())
num2 = int(b.get())
num2 = num2 + num
root = Tk()
root.title("Додавання чисел")
root.geometry("400x150")
a = StringVar()
b = StringVar()
Label(root, text="Введіть число").place(x=20, y=20)
Entry(root, textvariable=a).place(x=115, y=10)
Label(root, text="Отримуємо").place(x=20, y=55)
Entry(root, textvariable=b).place(x=115, y=55)
but = Button(text="Додати", command=calculation).place(x=200, y=100)
root.mainloop()
``````

• Call. `b.set(...)` in the right places.

``````from tkinter import *
from tkinter import messagebox
import math
def calculation():
num = int(a.get())
num2 = int(b.get())
num2 = num2 + num
b.set(str(num2))
root = Tk()
root.title("Додавання чисел")
root.geometry("400x150")
a = StringVar()
b = StringVar()
b.set("0")
Label(root, text="Введіть число").place(x=20, y=20)
Entry(root, textvariable=a).place(x=115, y=10)
Label(root, text="Отримуємо").place(x=20, y=55)
Entry(root, textvariable=b).place(x=115, y=55)
but = Button(text="Додати", command=calculation).place(x=200, y=100)
root.mainloop()
``````

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