tolong nomor 1-4 pakek caranya ya makasih

1.3 m+100 m+1 hm
=103 m+(1 x 100)
=103 m +100 m
=203 m

2.1 gros+12 biji+3 lusin=
=(1 x 12 lusin)+(12 : 12)+3 lusin
=12 lusin+1 lusin +3 lusin
=16 lusin

3.100 dm kubik +12 m kubik+3 dm kubik
=100 dm kubik +(12 x 1000)+3 dm kubik
=100+12000+3
=12103 dm kubik

4.1000 cm kubik + 15 cm kubik=   liter
=1015 cm kubik
=1,015 liter

Maaf kalo salah