Jason gave away a third of his collection if hockey cards. If he gave away 360 hockey cards how many does he have left?

Respuesta :

360 x 3 = 1080 ( this is how much he started with)
360 x 2 = 720 ( 2/3 of what he had)
720 ( what he has left)
360*3=1080.  so he started with 1080 cards.  1080-360=720