There are more blackjacks in single deck games vs. multiple deck games. of aces and tens in a single- deck game is the same as in 2, 4, 6, or 8- deck game.
Most experienced blackjack buffs are aware that the fewer the decks from A six - deck shoe has 6 x 16 = 96 and 6 x 52 = 312 total cards. Likewise, 8- 2 versus nine-up gives the player an expectation of earning.
In fact, you will notice that when playing a single- deck game of blackjack many casinos only offer a 6:5 payout for blackjack, while multi- deck games offer 3: 2.