In this Python program, we will learn how to make a simple calculator by which we can perform basic arithmetic operations such as addition, subtraction, multiplication, and division. In this program, we will use

statement to perform these basic arithmetic operations.**if...elif….else**

Here is the code of the program to perform basic arithmetic operations.

```
# Python Program to Make a Simple Calculator
# Define a function to adds two numbers
def add(x, y):
return x + y
# Define a function to subtracts two numbers
def subtract(x, y):
return x - y
# Define a function to multiplies two numbers
def multiply(x, y):
return x * y
# Define a function to divides two numbers
def divide(x, y):
return x / y
print("Select operation.")
print("1.Add")
print("2.Subtract")
print("3.Multiply")
print("4.Divide")
# Take input from the user
option = input("Choose Option(1/2/3/4): ")
num1 = float(input("Enter the First Number: "))
num2 = float(input("Enter the Second Number: "))
if option == '1':
print(num1,"+",num2,"=", add(num1,num2))
elif option == '2':
print(num1,"-",num2,"=", subtract(num1,num2))
elif option == '3':
print(num1,"*",num2,"=", multiply(num1,num2))
elif option == '4':
print(num1,"/",num2,"=", divide(num1,num2))
else:
print("You choose the Invalid Option!!")
```

Select operation.

1.Add

2.Subtract

3.Multiply

4.Divide

Choose Option(1/2/3/4): 1

Enter the First Number: 23

Enter the Second Number: 17

23.0 + 17.0 = 40.0

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