Please HELP!

Question

Can someone please help me shorten/simplify this programme? Thanks in advance!!

print ('Hello World')
name = input("\nWhat\'s your name? : ")
print ("\nHey there, ", name, ". \n Welcome to my first programme : A Simple Calculator")

def add(x,y):
ans = x + y
return ans

def minus(x,y):
ans = x - y
return ans

def multiply(x,y):
ans = x * y
return ans

def divide(x,y):
ans = x / y
return ans

def power(x,y):
ans = x ** y
return ans

def remainder(x,y):
ans = x % y
return ans

x = int(input("\nEnter number one: "))
y = int(input("\nEnter number two: "))

function = str(input("\n\nType: \n + for addition \n - for subtraction \n x for multiplication \n / for divison \n ** for indices \n % for remainder \n"))

print ("\n")

if function == "+":
print (x, "+", y, "=", (add(x,y)))
elif function == "-":
print (x, "-", y, "=", (minus(x,y)))
elif function == "x":
print (x, "x", y, "=", (multiply(x,y)))
elif function == "/":
print (x, "/", y, "=", (divide(x,y)))
elif function == "**":
print (x, "to the power of", y, "=", (power(x,y)))
elif function == "%":
print ("The remainder of ", x, "divided by ", y, "equals ", (remainder(x,y)))
else :
print ("Uhmm, did you mis-spell something??")

Answer 1

You can shorten all functions like this:
def add(x, y):
return x+y

Answer 2

Thanks Anselm! I appreciate your answer, I have just started coding!