Dexter filled 3 fewer plastic boxes with football cards than basketball cards. He filled 9 boxes with basketball cards and each box has 15 cards. For the boxes with football cards, he filled each box with 20 cards. How many cards does Dexter have in total?
Dexter have 9 x 15 = <<9*15=135>>135 basketball cards.
He filled 9 - 3 = <<9-3=6>>6 plastic boxes with football cards.
So, he has 6 x 20 = <<6*20=120>>120 football cards.
Therefore, Dexter has 135 + 120 = <<135+120=255>>255 cards in total.
#### 255
Dexter, futbol kartlarıyla basketbol kartlarından 3 daha az plastik kutu doldurdu. 9 kutuyu basketbol kartlarıyla doldurdu ve her kutuda 15 kart var. Futbol kartlarının olduğu kutular için her kutuyu 20 kartla doldurdu. Dexter'ın toplam kaç kartı vardır?
Dexter'ın 9 x 15 = <<9*15=135>>135 basketbol kartı var.
9 - 3 = <<9-3=6>>6 plastik kutuyu futbol kartlarıyla doldurdu.
Yani, 6 x 20 = <<6*20=120>>120 futbol kartı var.
Dolayısıyla Dexter'ın toplam 135 + 120 = <<135+120=255>>255 kartı var.
#### 255