5. 9:3=3(o parte)<br /> 3×7=21(km drumul)<br /><br />6. a|___| ]<br /> b|___|___| ] 84<br /> c|___|___|___|___| ]<br /><br />84:(1+2+4.parti.egale)=84:7=12(a)<br />12×2=24(b)<br />12×4=48(c)
7. 30:5×3=18(fete)
30-18=12(baieti)
8. |___|___|___|___|___|___|