пониманий вложенного списка
In [15]: [[[c*d for d in b] for c in a ] for a in list for b in list2]
Out[15]:
[[[50, 100, 150], [80, 160, 240], [30, 60, 90]],
[[200, 250, 300], [320, 400, 480], [120, 150, 180]],
[[350, 400, 450], [560, 640, 720], [210, 240, 270]],
[[40, 80, 120], [50, 100, 150], [60, 120, 180]],
[[160, 200, 240], [200, 250, 300], [240, 300, 360]],
[[280, 320, 360], [350, 400, 450], [420, 480, 540]],
[[70, 140, 210], [80, 160, 240], [90, 180, 270]],
[[280, 350, 420], [320, 400, 480], [360, 450, 540]],
[[490, 560, 630], [560, 640, 720], [630, 720, 810]]]