Răspuns:
1)7,85-3,948=3,902
2)5,2*14=72,8
3)7/25*5=35/25=7/5
Sub 2
1)5,7:0,03=190
2)15+48/2=63/2=31,5
3)0,02*2,95=0,059
Sub 3
Fie x prima zi, y a doua si z a treia
X=20,27
Y=20,27+5,7=25,97
Z=25,97*2=51,94
Drumul=20,27+25,97+51,94=98,18 km