Math Problem Generator

example-output.txt

 1 x 12 = _____   |    1 x  9 = _____
 2 x  4 = _____   |    2 x  5 = _____
 3 x 11 = _____   |    3 x  7 = _____
 4 x  8 = _____   |    4 x  5 = _____
 5 x  7 = _____   |    5 x 12 = _____
 6 x  3 = _____   |    6 x 11 = _____
 7 x 10 = _____   |    7 x  3 = _____
 8 x  8 = _____   |    8 x 11 = _____
 9 x 10 = _____   |    9 x  9 = _____
10 x 11 = _____   |   10 x 11 = _____
11 x 12 = _____   |   11 x  4 = _____
12 x  4 = _____   |   12 x  7 = _____
 1 x 11 = _____   |    1 x  3 = _____
 2 x  8 = _____   |    2 x  6 = _____
 3 x  5 = _____   |    3 x 10 = _____
 4 x  3 = _____   |    4 x  9 = _____
 5 x  4 = _____   |    5 x 10 = _____
 6 x  5 = _____   |    6 x 12 = _____
 7 x 11 = _____   |    7 x  8 = _____
 8 x  4 = _____   |    8 x  5 = _____
 9 x 11 = _____   |    9 x  6 = _____
10 x  4 = _____   |   10 x  7 = _____
11 x  9 = _____   |   11 x 10 = _____
12 x  3 = _____   |   12 x  6 = _____

math-problems.py

#!python3

import random

def main():
	lastB = 0
	lastC = 0
	problems = {""}

	for outer in range(2):
		for i in range(12):
			a = i + 1
			
			b = random.randint(3,12)
			while b == lastB or f"{a} x {b}" in problems:
				b = random.randint(3,12)
				
			c = random.randint(3,12)
			while c == lastC or f"{a} x {c}" in problems:
				c = random.randint(3,12)
				
			lastB = b
			lastC = c
			
			problems.add(f"{a} x {b}")
			problems.add(f"{a} x {c}")
				
			print(f"{a:2} x {b:2} = _____   |   {a:2} x {c:2} = _____")
			
			
			
if __name__ == '__main__':
	main()