Calculater not working

Question

my calci is not working(see my code)
https://code.sololearn.com/c0ylLIaBtW9i/?ref=app

Answer 1

Indentions are wrong.After you use a : your code should be indented.

Answer 2

Like this it works:
def add(x, y): return x + y
def multiply(x, y): return x * y
def divide(x, y): return x / y
print("Select operation.")
print("1.Add")
print("2.Subtract")
print("3.Multiply")
print("4.Divide")
choice = input("Enter choice(1/2/3/4):")
num1 = int(input("Enter first number: "))
num2 = int(input("Enter second number: "))
if choice == '1':
print(num1,"+",num2,"=", add(num1,num2))
elif choice == '2':
print(num1,"-",num2,"=", subtract(num1,num2))
elif choice == '3':
print(num1,"*",num2,"=", multiply(num1,num2))
elif choice == '4':
print(num1,"/",num2,"=", divide(num1,num2))
else:
print("Invalid input")

but the subtract function is missing.