504 bush + 5 gross=.....lusin

(504 : 12 = 42 lusin) + (5 × 12 = 60 lusin) =
42 lusin + 60 lusin = 102 lusin

semoga bermanfaat

12 buah = 1 lusin
504 buah = .....lusin
= 504 : 12
= 42 lusin

1 griss =12 lusin
5 gros = ...lusin
= 5 x 12
= 60 lusin
maka

504 buah + 5 gros
= 42 lusin + 60 lusin
= 102 lusin