Why is this app not executing python codes

Question

Python

Answer 1

There are many errors in your code.
You can do this:

a = int(input())
b = int(input())
print(a+b)

Same for multiplication.

printf is for formatting your output:

print(f'result = {a+b}')

or multiline:

print(f'''result of addition: {a+b}
result of multiplication: {a*b}''')

Answer 2

you are not taking input. for input, use the input() function.
functions have (), not {}.
and you are using strings just everywhere instead of numbers or variables.

Answer 3

add to what???
ask your questions here.

Answer 4

Run this

Answer 5

n1 =("a+b")
n2 =("enter any number for addition")
n3 =("a*b")
n4 =("enter any number for multiplication")
check ={"n2 & n4 "}
answer = ("check")
print {f"check"}

Answer 6

Is not working