Răspuns:
4. S= 15×2= 30lei
E= 30×3= 90lei
E-S= 90-30= 60
5. 4×212= 848
848- 32×3= 848- 96= 752
752÷2= 376
376÷2= 138 in pungi de 2kg
376÷4= 94 in pungi de 4kg
138+94= 232
6. 46-8×4= 46-32= 14 m ramasi
14÷2= 7 fete de perna
7. 3G= R
G+40= R
3G= G+40 |-G
2G= 40
G= 20
20×3= 60 Trandafiri Rosii
8. x+y+z= 800
x= 9×4= 36
y= 72÷8= 9
z= 800-36-9= 755
9. Mod I (642kg+ 936kg)÷2= 1578kg÷2= 789kg
Mod II 642÷2+ 936÷2= 321+
468= 789kg
10. 95+ 95÷5+ (95÷5+18)= 95+ 19+(19+18)= 114+37= 141 Razvan
141<200
Deci Marius are mai multe timhre decat Razvan
11. Mod I: 484÷4+484÷4= 121+121= 242 caiete in fiecare librarie
Mod II: (484+484)÷4= 968÷4= 242