modules/subtraction_bases.py

# modules/subtraction_bases.py

title = "Subtraction in Bases"
description = "This module focuses on subtraction operations in binary using the 2's complement method."

def generate_question():
    import random

    base = random.choice([2, 8, 16])
    num1 = ''.join(random.choice('0123456789ABCDEF') for _ in range(3))
    num2 = ''.join(random.choice('0123456789ABCDEF') for _ in range(3))

    def subtract_numbers(num1, num2, base):
        return hex(int(num1, base) - int(num2, base))[2:].upper() if base == 16 else \
               oct(int(num1, base) - int(num2, base))[2:] if base == 8 else \
               bin(int(num1, base) - int(num2, base))[2:] if base == 2 else \
               str(int(num1) - int(num2))

    correct_answer = subtract_numbers(num1, num2, base)
    options = [correct_answer]

    # Generate incorrect answers
    while len(options) < 4:
        invalid_answer = ''.join(random.choice('0123456789ABCDEF') for _ in range(4))
        if invalid_answer != correct_answer:
            options.append(invalid_answer)
    
    random.shuffle(options)
    
    question = f"Subtract the number {num2} from {num1} in base {base}."
    explanation = f"The result of subtracting {num2} from {num1} in base {base} is {correct_answer}."
    step_by_step_solution = [
        f"Step 1: Convert the numbers {num1} and {num2} to base 10.",
        "Step 2: Subtract the numbers in base 10.",
        f"Step 3: Convert the result back to base {base}."
    ]
    
    return {
        "question": question,
        "options": options,
        "correct_answer": correct_answer,
        "explanation": explanation,
        "step_by_step_solution": step_by_step_solution
    }