A cube has six sides so you could get six possible different outcomes and then if you toss 1 coin you can get two possible outcomes. Ok so now you have 3 coins and each of those coins will have 2 possible outcomes so you take and multiply 2 by 3 and get 6 then you add that 6 to the 6 possible you could get from the Numbered cube and you'll get 12 different possible outcomes. Unless you are asking how many outcomes will you get if you only roll the cube 1 time and flip the coins 1 time each then your answer would be 4, but then again if you took and held the cube and all 3 coins in your hand and dropped on a table simultaneously you'd get only 1 outcome. But then you could first roll the cube and then toss all three coins at the same time, In which case you'd have 2 outcomes. I'm sorry I can't give you a more direct answer than this. Maybe next time you ask you might try to be more precise about the order in which you intended to achieve either your absolute outcome, or your number of posible outcomes.