Exercícios com números naturais

naturais.py

from random import randint, choice

def plus_minus_expressions(quantity: int = 30) -> None:
    for i in range(quantity):
        n = lambda: choice([1,-1])*randint(0, 10)
        oper = choice(['-', '+'])
        print(f'{n()} {oper} {n()} {oper} {n()} = ')

def division_times_expressions(quantity: int = 30) -> None:
    for i in range(quantity):
        n = lambda: choice([1,-1])*randint(0, 10)
        oper = choice(['*', ':'])
        a, b = n(), n()
        if b == 0:
            b += 1
        if oper == ':' and (a%b != 0):
            a = b * a
        print(f'{a} {oper} {b} = ')

plus_minus_expressions()
division_times_expressions()