Solve:-
[tex]120* (\frac{6}{10})[/tex] = Amount of cards Kim gave to Maddy.
[tex]120* (\frac{6}{10})[/tex] = 72
Kim gave Maddy 72 cards.
How many cards does Kim have left in the box?
120 - 72 = 48
48 cards
So, Kim has 48 cards left in her box after she gives Maddy 6/10 of the cards.
Hope I helped ya!! xD