Răspuns:
a.500kg+4g=
Transformăm:
500kg=500000 g
4g=4g
500000g+4g=500004g
b.2t+50hg
Tranformăm:
2t=20000hg
50hg=50hg
20000hg+50hg=20050hg
c.5g+3dg
5g=50dg
3dg=3dg
50dg+3dg=53dg
d.3t+5g=
3t=3000000g
5g=5g
3000000g+5g=3000005g