Question

Jerome bought 8 packs of baseball cards at a garage sale. Each paCk had 10 cards. He gave his younger sister 3 cards from each pack. How many cards does Jerome have left?

Answer 1

8*10= 80

You now know how many Jerome has.

3*10= 30 

That is how many his sister has.

80-30= 50

Jerome has 50 cards left.

I hope this helps!
~kaikers