Calculator (Div0 & Float)

#calculator using main math functions, float & integer capable, divide by zero check and working out shown.

#integer functions
def addi():
    num1=int(input("enter first number"))
    num2=int(input("enter first number"))
    ans = (num1) + (num2)
    print(num1, "Plus", num2, "=", ans)
def subtracti():
    num1=int(input("enter first number"))
    num2=int(input("enter first number"))
    ans = (num1) - (num2)
    print(num1, "Minus", num2, "=", ans)
def dividei():
    num1=int(input("enter first number"))
    num2=int(input("enter first number"))
    if num2 == 0:
        print("Math Error")
    else:
        ans = (num1) / (num2)
        print(num1, "Divided by", num2, "=", ans)
def multiplyi():
    num1=int(input("enter first number"))
    num2=int(input("enter first number"))
    ans = (num1) * (num2)
    print(num1, "Multiplied by", num2, "=", ans)

#floating functions
def addf():
    num1=float(input("enter first number"))
    num2=float(input("enter first number"))
    ans = (num1) + (num2)
    print(num1, "Plus", num2, "=", ans)
def subtractf():
    num1=float(input("enter first number"))
    num2=float(input("enter first number"))
    ans = (num1) - (num2)
    print(num1, "Minus", num2, "=", ans)
def dividef():
    num1=float(input("enter first number"))
    num2=float(input("enter first number"))
    if num2 == 0:
        print("Math Error")
    else:
        ans = (num1) / (num2)
        print(num1, "Divided by", num2, "=", ans)
def multiplyf():
    num1=float(input("enter first number"))
    num2=float(input("enter first number"))
    ans = (num1) * (num2)
    print(num1, "Multiplied by", num2, "=", ans)

while True:
    print("Elenas Calculator v1.0")
    choice=input("""ai = add integer
af = add float
si = subtract integer
sf = subtract float
di = divide integer
df = divide float
mi = multiply integer
mf = multiply float""")
    if choice =="ai":
        addi()
    if choice == "af":
        addf()
    if choice == "si":
        subtracti()
    if choice == "sf":
        subtractf()
    if choice == "di":
        dividei()
    if choice == "df":
        dividef()
    if choice == "mi":
        multiplyi()
    if choice == "mf":
        multiplyf()
    else:
        print("Wrong selection!")