What Cards Should You Not Split in Blackjack?

When playing blackjack, there are certain cards that you should never split. These include:

Aces: Aces are worth 11 points, so splitting them would decrease your chances of getting a blackjack.

Ten-value cards: Ten-value cards are also worth 10 points each. If you split them, you’re essentially giving up a 10-point hand for two 5-point hands.

This is a bad idea, since 5-point hands are much less likely to win than 10-point hands.

Five-value cards: Five-value cards are only worth 5 points each. Splitting them would give you two very weak hands that are unlikely to win.