math-test.py

import random
import time

OPERATORS = ["+", "-", "*",]
MIN_OPERAND = 2
MAX_OPERAND = 12
TOTAL_PROBLEMS = 5

def generate_problem():
    left = random.randint(MIN_OPERAND, MAX_OPERAND)
    right = random.randint(MIN_OPERAND, MAX_OPERAND)
    operator = random.choice(OPERATORS)

    expr = f"{left} {operator} {right}"
    answer = eval(expr)

    return expr, answer    

wrong = 0
input("Press Enter to start!")
print("----------------------")

start_time = time.time()

for _ in range(TOTAL_PROBLEMS):
    expr, answer = generate_problem()
    while True:
        guess = input("Problem #" + str(_ + 1) + ": " + expr + " = ")
        if guess == str(answer):
            print("Correct!")
            break
        wrong += 1

end_time = time.time()
total_time = end_time - start_time

print("----------------------")
print(f"Nice work! You finished in {total_time:.2f} seconds with {wrong} wrong answers.")