3 gros tambah 2 kodi kurang 5 lusin

1 gross = 144 biji
1 kodi = 20 biji
1 lusin = 12 biji

3×144=432
2×20=40
5×12=60

432+40 = 472-60 = 412

semoga membantu:)

3×144=432
2×20 =40
5×12 =60

432+40=472-60=412