Question

1.Calculati:

a)in grame:5 hg+175 mg-2,5 dag.
b) in m^3:100 cm^3+1,25 dam^3
c) in secunde: 1h 25 min+43 min 20 s+1 h 10 min 13 s

Answer 1

5 hg=500 g
175 mg=0,175 g
2,5 dag=25 g
500+0,175-25=500,175-25=475,175

100 cm³=0,0001 m³
1,25 dam³=1250 m³
0,0001 m³+1250 m³=1250,0001 m³

1 h 25 min=5100 s
43 min 20 s=2600 s
1 h 10 min 13 s=4393
5100+2600-4393=7700-4393=3307 s