Question

Calculați a)20m+3,5dam-150dm =.......cm
b)0,0091km +0,032hm-1m-30dm=.......cm

Answer 1

Răspuns:

a).20m=20×100=2000cm

3,5 dam=3,5 ×1000=3500cm

150dm=150×10=1500cm

2000+3500+1500=7000cm

b).0,009km=0,009×10000=90 cm

0,032hm=0,032×1000 =32cm

30dm =30×10=300cm

90+32+300=422 cm