Simple Arithmetic Calculator - User Defined Function

Type 1:

#Function Definition

def add():

    print("Addition:")

    a=int(input("Enter A Value: "))

    b=int(input("Enter B Value: "))

    c=a+b

    return(c)

sum=add() #Function Call

print("Addition: ",sum)

def diff():

    print('\n'"Subtraction:")

    a=int(input("Enter A Value: "))

    b=int(input("Enter B Value: "))

    c=a-b

    return(c)

sub=diff()

print("Subtract: ",sub)

def mul():

    print('\n'"Multiplication:")

    a=int(input("Enter A Value: "))

    b=int(input("Enter B Value: "))

    c=a*b

    return(c)

multi=mul()

print("Multiplication: ",multi)

def div():

    print('\n'"Division:")

    a=int(input("Enter A Value: "))

    b=int(input("Enter B Value: "))

    c=a/b

    return(c)

divide=div()

print("Division: ",divide)

Output: 

Type 2:

#First Calculator 

def add(a,b):

    c=a+b

    return(c)

def diff(a,b):

    return(a-b)

def pro(a,b):

    return(a*b)

def quo(a,b):

    return(a//b)

def rem(a,b):

    return(a%b)

def line():

    print("**********************")

line()

print("My First Calculator")

line()

a=int(input("Enter A Value: "))

b=int(input("Enter B Value: "))

print('\n'"Addition: ",add(a,b))

print("Subtract: ",diff(a,b))

print("Product : ",pro(a,b))

print("Quotient: ",quo(a,b))

print("Reminder: ",rem(a,b))

line()

print("Thank You")

line()

Output: 

If you have any doubts, feel free to post it in comment Section.