YOU SAID:

I shuffled the cards and dealt five face down

INTO JAPANESE

カードをシャッフルして、5枚裏向きに配りました

BACK INTO ENGLISH

Shuffled the cards and dealt 5 cards face down

INTO JAPANESE

カードをシャッフルし、5枚のカードを裏向きに配りました

BACK INTO ENGLISH

Shuffled the cards and dealt 5 cards face down