why is there a syntax error here and what is a syntax error

Question

inp= input('select a mode as (calculator, game, or time)')

calculator ={
#syntax error here > x = str(input('Please choose add, subtract, divide, or multiply, then choose 2 numbers'))

add ={
z = int(input())
y = int(input())
print(z + y)
}
subtract ={
z = int(input())
y = int(input())
print(z - y)
}

divide ={
z = int(input())
y = int(input())
print(z / y)
}

multiply ={
z = int(input())
y = int(input())
print(z * y)
}

if x=='add':
add

if x=='subtract':
subtract

if x=='divide':
divide

if x=='multiply':
multiply
}

game ={
import random
a = random.choice(1, 10)
x = int(input('Enter a number between 1 and 10'))
if x==a:
print('you got it right! The number was:', a)

if x!=a:
print('Sorry , you got it wrong. The number was: ', a)
}

time ={
import time as t
a = t.now()
print(a)
}

####################################################

if inp=='calculator':
calculator

if inp=='game':
game

if inp=='time':
time

else:
print('Something went wrong. Please choose between calcultor, game, and time')

Answer 1

Hello, Random test
there are many syntax error in the code:

# In Python we do not define functions like this:
add = {
#... some code here
}

# but like this:
def add(z, y):
return z + y

Answer 2

If you want to define a class do it like this:

class Calculator(object): #class declaration
def add(x, y): # method declaration
return x + y

Answer 3

All right thx I'll try that