504 buah + 5 gross=......lusin

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

1 gross = 144 buah = 12 lusin
5 gross = 5 x 12 = 60 lusin

lusin total = 42 lusin + 60 lusin = 102 lusin

smoga membantu

504 buah + 5 gross = .... lusin
504 : 12 = 42 lusin
5 gross = 144 buah = 12 lusin
= 5 × 12 lusin
= 60 lusin

= 42 lusin + 60 lusin
= 102 lusin