1.)2liter+4dl=....cm3 2.)4liter+48cm3=....cc

1) 2 liter + 4 dl
= (2 × 1.000) + ( 4 × 100 )
= 2.000 + 400
= 2.400 cm³

2) 4 liter + 48 cm³
= (4 × 1000) + ( 48 × 1)
= 4.000 + 48
= 4.048 cc