I don't think there is a shorter way to write it, though Here are two ways to execute it:

## Method 1:

Make a calculate function.

def calculate():#This makes a function that asks for the numbers and what to use on them.
num1 = int(input("Enter a number: "))
num2 = int(input("Enter a second number: "))
operation = input("What do you want to do? ")
if operation == "add":
print(num1, "+", num2,"=", num1 + num2)
elif operation == "subtract":
print(num1, "-", num2,"=", num1 - num2)
elif operation == "multiply":
print(num1, "*", num2,"=", num1 * num2)
elif operation == "divide":
print(num1, "/", num2,"=", num1 / num2)
else:
print("Not a valid operation.")
calculate()#Now all you have to do is call the function like this whenever you want to use it in the code.

## Method 2:

Give the function parameters instead of input variables.

def calculate(num1,num2,operation):#This gives the function parameters to use as it operates.
if operation == "add":
print(num1, "+", num2,"=", num1 + num2)
elif operation == "subtract":
print(num1, "-", num2,"=", num1 - num2)
elif operation == "multiply":
print(num1, "*", num2,"=", num1 * num2)
elif operation == "divide":
print(num1, "/", num2,"=", num1 / num2)
else:
print("Not a valid operation.")
calculate(3,4,"add")#now Whenever you call the function in the code, you can give it instructions for what to do.
calculate(3,4,"subtract")
calculate(3,4,"multiply")
calculate(3,4,"divide")
calculate(3,4,"jeff")